ICD-10 · PDGM grouping
S20 Superficial injury of thorax
All 294 codes in the S20 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
294
Can lead a claim
24
Cannot lead a claim
270
What CMS assigns to S20
24 of the 294 codes group to MMTA - Other; 270 are assigned no clinical group. None of the 294 is assigned a comorbidity subgroup. 24 of the 294 can lead a claim.
Every code in S20
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| S20.0 Contusion of breast | ||||
| S20.00 Contusion of breast, unspecified breast | ||||
| S20.00XA | Contusion of breast, unspecified breast, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.00XD | Contusion of breast, unspecified breast, subsequent encounterCMS: Contusion of breast, unspecified breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.00XS | Contusion of breast, unspecified breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.01 Contusion of right breast | ||||
| S20.01XA | Contusion of right breast, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.01XD | Contusion of right breast, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.01XS | Contusion of right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.02 Contusion of left breast | ||||
| S20.02XA | Contusion of left breast, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.02XD | Contusion of left breast, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.02XS | Contusion of left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.1 Other and unspecified superficial injuries of breast | ||||
| S20.10 Unspecified superficial injuries of breast | ||||
| S20.101 Unspecified superficial injuries of breast, right breast | ||||
| S20.101A | Unspecified superficial injuries of breast, right breast, initial encounterCMS: Unsp superficial injuries of breast, right breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.101D | Unspecified superficial injuries of breast, right breast, subsequent encounterCMS: Unsp superficial injuries of breast, right breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.101S | Unspecified superficial injuries of breast, right breast, sequelaCMS: Unsp superficial injuries of breast, right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.102 Unspecified superficial injuries of breast, left breast | ||||
| S20.102A | Unspecified superficial injuries of breast, left breast, initial encounterCMS: Unsp superficial injuries of breast, left breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.102D | Unspecified superficial injuries of breast, left breast, subsequent encounterCMS: Unsp superficial injuries of breast, left breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.102S | Unspecified superficial injuries of breast, left breast, sequelaCMS: Unsp superficial injuries of breast, left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.109 Unspecified superficial injuries of breast, unspecified breast | ||||
| S20.109A | Unspecified superficial injuries of breast, unspecified breast, initial encounterCMS: Unsp superficial injuries of breast, unsp breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.109D | Unspecified superficial injuries of breast, unspecified breast, subsequent encounterCMS: Unsp superficial injuries of breast, unsp breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.109S | Unspecified superficial injuries of breast, unspecified breast, sequelaCMS: Unsp superficial injuries of breast, unsp breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.11 Abrasion of breast | ||||
| S20.111 Abrasion of breast, right breast | ||||
| S20.111A | Abrasion of breast, right breast, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.111D | Abrasion of breast, right breast, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.111S | Abrasion of breast, right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.112 Abrasion of breast, left breast | ||||
| S20.112A | Abrasion of breast, left breast, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.112D | Abrasion of breast, left breast, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.112S | Abrasion of breast, left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.119 Abrasion of breast, unspecified breast | ||||
| S20.119A | Abrasion of breast, unspecified breast, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.119D | Abrasion of breast, unspecified breast, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.119S | Abrasion of breast, unspecified breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.12 Blister (nonthermal) of breast | ||||
| S20.121 Blister (nonthermal) of breast, right breast | ||||
| S20.121A | Blister (nonthermal) of breast, right breast, initial encounterCMS: Blister (nonthermal) of breast, right breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.121D | Blister (nonthermal) of breast, right breast, subsequent encounterCMS: Blister (nonthermal) of breast, right breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.121S | Blister (nonthermal) of breast, right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.122 Blister (nonthermal) of breast, left breast | ||||
| S20.122A | Blister (nonthermal) of breast, left breast, initial encounterCMS: Blister (nonthermal) of breast, left breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.122D | Blister (nonthermal) of breast, left breast, subsequent encounterCMS: Blister (nonthermal) of breast, left breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.122S | Blister (nonthermal) of breast, left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.129 Blister (nonthermal) of breast, unspecified breast | ||||
| S20.129A | Blister (nonthermal) of breast, unspecified breast, initial encounterCMS: Blister (nonthermal) of breast, unsp breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.129D | Blister (nonthermal) of breast, unspecified breast, subsequent encounterCMS: Blister (nonthermal) of breast, unsp breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.129S | Blister (nonthermal) of breast, unspecified breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.14 External constriction of part of breast | ||||
| S20.141 External constriction of part of breast, right breast | ||||
| S20.141A | External constriction of part of breast, right breast, initial encounterCMS: External constriction of part of breast, right breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.141D | External constriction of part of breast, right breast, subsequent encounterCMS: External constriction of part of breast, right breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.141S | External constriction of part of breast, right breast, sequelaCMS: External constrict of part of breast, right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.142 External constriction of part of breast, left breast | ||||
| S20.142A | External constriction of part of breast, left breast, initial encounterCMS: External constriction of part of breast, left breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.142D | External constriction of part of breast, left breast, subsequent encounterCMS: External constriction of part of breast, left breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.142S | External constriction of part of breast, left breast, sequelaCMS: External constrict of part of breast, left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.149 External constriction of part of breast, unspecified breast | ||||
| S20.149A | External constriction of part of breast, unspecified breast, initial encounterCMS: External constriction of part of breast, unsp breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.149D | External constriction of part of breast, unspecified breast, subsequent encounterCMS: External constriction of part of breast, unsp breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.149S | External constriction of part of breast, unspecified breast, sequelaCMS: External constrict of part of breast, unsp breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.15 Superficial foreign body of breast | ||||
| S20.151 Superficial foreign body of breast, right breast | ||||
| S20.151A | Superficial foreign body of breast, right breast, initial encounterCMS: Superficial foreign body of breast, right breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.151D | Superficial foreign body of breast, right breast, subsequent encounterCMS: Superficial foreign body of breast, right breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.151S | Superficial foreign body of breast, right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.152 Superficial foreign body of breast, left breast | ||||
| S20.152A | Superficial foreign body of breast, left breast, initial encounterCMS: Superficial foreign body of breast, left breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.152D | Superficial foreign body of breast, left breast, subsequent encounterCMS: Superficial foreign body of breast, left breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.152S | Superficial foreign body of breast, left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.159 Superficial foreign body of breast, unspecified breast | ||||
| S20.159A | Superficial foreign body of breast, unspecified breast, initial encounterCMS: Superficial foreign body of breast, unsp breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.159D | Superficial foreign body of breast, unspecified breast, subsequent encounterCMS: Superficial foreign body of breast, unsp breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.159S | Superficial foreign body of breast, unspecified breast, sequelaCMS: Superficial foreign body of breast, unsp breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.16 Insect bite (nonvenomous) of breast | ||||
| S20.161 Insect bite (nonvenomous) of breast, right breast | ||||
| S20.161A | Insect bite (nonvenomous) of breast, right breast, initial encounterCMS: Insect bite (nonvenomous) of breast, right breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.161D | Insect bite (nonvenomous) of breast, right breast, subsequent encounterCMS: Insect bite (nonvenomous) of breast, right breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.161S | Insect bite (nonvenomous) of breast, right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.162 Insect bite (nonvenomous) of breast, left breast | ||||
| S20.162A | Insect bite (nonvenomous) of breast, left breast, initial encounterCMS: Insect bite (nonvenomous) of breast, left breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.162D | Insect bite (nonvenomous) of breast, left breast, subsequent encounterCMS: Insect bite (nonvenomous) of breast, left breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.162S | Insect bite (nonvenomous) of breast, left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.169 Insect bite (nonvenomous) of breast, unspecified breast | ||||
| S20.169A | Insect bite (nonvenomous) of breast, unspecified breast, initial encounterCMS: Insect bite (nonvenomous) of breast, unsp breast, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.169D | Insect bite (nonvenomous) of breast, unspecified breast, subsequent encounterCMS: Insect bite (nonvenomous) of breast, unsp breast, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.169S | Insect bite (nonvenomous) of breast, unspecified breast, sequelaCMS: Insect bite (nonvenomous) of breast, unsp breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.17 Other superficial bite of breast | ||||
| S20.171 Other superficial bite of breast, right breast | ||||
| S20.171A | Other superficial bite of breast, right breast, initial encounterCMS: Other superficial bite of breast, right breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.171D | Other superficial bite of breast, right breast, subsequent encounterCMS: Other superficial bite of breast, right breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.171S | Other superficial bite of breast, right breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.172 Other superficial bite of breast, left breast | ||||
| S20.172A | Other superficial bite of breast, left breast, initial encounterCMS: Other superficial bite of breast, left breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.172D | Other superficial bite of breast, left breast, subsequent encounterCMS: Other superficial bite of breast, left breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.172S | Other superficial bite of breast, left breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.179 Other superficial bite of breast, unspecified breast | ||||
| S20.179A | Other superficial bite of breast, unspecified breast, initial encounterCMS: Other superficial bite of breast, unsp breast, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.179D | Other superficial bite of breast, unspecified breast, subsequent encounterCMS: Other superficial bite of breast, unsp breast, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.179S | Other superficial bite of breast, unspecified breast, sequelaCMS: Other superficial bite of breast, unsp breast, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.2 Contusion of thorax | ||||
| S20.20 Contusion of thorax, unspecified | ||||
| S20.20XA | Contusion of thorax, unspecified, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.20XD | Contusion of thorax, unspecified, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.20XS | Contusion of thorax, unspecified, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.21 Contusion of front wall of thorax | ||||
| S20.211 Contusion of right front wall of thorax | ||||
| S20.211A | Contusion of right front wall of thorax, initial encounter | Can lead a claim | A | None |
| S20.211D | Contusion of right front wall of thorax, subsequent encounterCMS: Contusion of right front wall of thorax, subs encntr | Can lead a claim | A | None |
| S20.211S | Contusion of right front wall of thorax, sequela | Can lead a claim | A | None |
| S20.212 Contusion of left front wall of thorax | ||||
| S20.212A | Contusion of left front wall of thorax, initial encounter | Can lead a claim | A | None |
| S20.212D | Contusion of left front wall of thorax, subsequent encounter | Can lead a claim | A | None |
| S20.212S | Contusion of left front wall of thorax, sequela | Can lead a claim | A | None |
| S20.213 Contusion of bilateral front wall of thorax | ||||
| S20.213A | Contusion of bilateral front wall of thorax, initial encounterCMS: Contusion of bilateral front wall of thorax, init | Can lead a claim | A | None |
| S20.213D | Contusion of bilateral front wall of thorax, subsequent encounterCMS: Contusion of bilateral front wall of thorax, subs | Can lead a claim | A | None |
| S20.213S | Contusion of bilateral front wall of thorax, sequela | Can lead a claim | A | None |
| S20.214 Contusion of middle front wall of thorax | ||||
| S20.214A | Contusion of middle front wall of thorax, initial encounter | Can lead a claim | A | None |
| S20.214D | Contusion of middle front wall of thorax, subsequent encounterCMS: Contusion of middle front wall of thorax, subs | Can lead a claim | A | None |
| S20.214S | Contusion of middle front wall of thorax, sequela | Can lead a claim | A | None |
| S20.219 Contusion of unspecified front wall of thorax | ||||
| S20.219A | Contusion of unspecified front wall of thorax, initial encounterCMS: Contusion of unspecified front wall of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.219D | Contusion of unspecified front wall of thorax, subsequent encounterCMS: Contusion of unspecified front wall of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.219S | Contusion of unspecified front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.22 Contusion of back wall of thorax | ||||
| S20.221 Contusion of right back wall of thorax | ||||
| S20.221A | Contusion of right back wall of thorax, initial encounter | Can lead a claim | A | None |
| S20.221D | Contusion of right back wall of thorax, subsequent encounter | Can lead a claim | A | None |
| S20.221S | Contusion of right back wall of thorax, sequela | Can lead a claim | A | None |
| S20.222 Contusion of left back wall of thorax | ||||
| S20.222A | Contusion of left back wall of thorax, initial encounter | Can lead a claim | A | None |
| S20.222D | Contusion of left back wall of thorax, subsequent encounter | Can lead a claim | A | None |
| S20.222S | Contusion of left back wall of thorax, sequela | Can lead a claim | A | None |
| S20.223 Contusion of bilateral back wall of thorax | ||||
| S20.223A | Contusion of bilateral back wall of thorax, initial encounterCMS: Contusion of bilateral back wall of thorax, init | Can lead a claim | A | None |
| S20.223D | Contusion of bilateral back wall of thorax, subsequent encounterCMS: Contusion of bilateral back wall of thorax, subs | Can lead a claim | A | None |
| S20.223S | Contusion of bilateral back wall of thorax, sequela | Can lead a claim | A | None |
| S20.224 Contusion of middle back wall of thorax | ||||
| S20.224A | Contusion of middle back wall of thorax, initial encounter | Can lead a claim | A | None |
| S20.224D | Contusion of middle back wall of thorax, subsequent encounterCMS: Contusion of middle back wall of thorax, subs | Can lead a claim | A | None |
| S20.224S | Contusion of middle back wall of thorax, sequela | Can lead a claim | A | None |
| S20.229 Contusion of unspecified back wall of thorax | ||||
| S20.229A | Contusion of unspecified back wall of thorax, initial encounterCMS: Contusion of unspecified back wall of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.229D | Contusion of unspecified back wall of thorax, subsequent encounterCMS: Contusion of unspecified back wall of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.229S | Contusion of unspecified back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.3 Other and unspecified superficial injuries of front wall of thorax | ||||
| S20.30 Unspecified superficial injuries of front wall of thorax | ||||
| S20.301 Unspecified superficial injuries of right front wall of thorax | ||||
| S20.301A | Unspecified superficial injuries of right front wall of thorax, initial encounterCMS: Unsp superficial injuries of r frnt wl of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.301D | Unspecified superficial injuries of right front wall of thorax, subsequent encounterCMS: Unsp superficial injuries of r frnt wl of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.301S | Unspecified superficial injuries of right front wall of thorax, sequelaCMS: Unsp superficial injuries of r frnt wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.302 Unspecified superficial injuries of left front wall of thorax | ||||
| S20.302A | Unspecified superficial injuries of left front wall of thorax, initial encounterCMS: Unsp superficial injuries of left front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.302D | Unspecified superficial injuries of left front wall of thorax, subsequent encounterCMS: Unsp superficial injuries of left front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.302S | Unspecified superficial injuries of left front wall of thorax, sequelaCMS: Unsp superficial injuries of l frnt wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.303 Unspecified superficial injuries of bilateral front wall of thorax | ||||
| S20.303A | Unspecified superficial injuries of bilateral front wall of thorax, initial encounterCMS: Unsp superfic injuries of bi front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.303D | Unspecified superficial injuries of bilateral front wall of thorax, subsequent encounterCMS: Unsp superfic injuries of bi front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.303S | Unspecified superficial injuries of bilateral front wall of thorax, sequelaCMS: Unsp superfic injuries of bi front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.304 Unspecified superficial injuries of middle front wall of thorax | ||||
| S20.304A | Unspecified superficial injuries of middle front wall of thorax, initial encounterCMS: Unsp superfic injuries of middle front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.304D | Unspecified superficial injuries of middle front wall of thorax, subsequent encounterCMS: Unsp superfic injuries of middle front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.304S | Unspecified superficial injuries of middle front wall of thorax, sequelaCMS: Unsp superfic injuries of middle front wall of thorax, sqla | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.309 Unspecified superficial injuries of unspecified front wall of thorax | ||||
| S20.309A | Unspecified superficial injuries of unspecified front wall of thorax, initial encounterCMS: Unsp superficial injuries of unsp front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.309D | Unspecified superficial injuries of unspecified front wall of thorax, subsequent encounterCMS: Unsp superficial injuries of unsp front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.309S | Unspecified superficial injuries of unspecified front wall of thorax, sequelaCMS: Unsp superfic injuries of unsp front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.31 Abrasion of front wall of thorax | ||||
| S20.311 Abrasion of right front wall of thorax | ||||
| S20.311A | Abrasion of right front wall of thorax, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.311D | Abrasion of right front wall of thorax, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.311S | Abrasion of right front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.312 Abrasion of left front wall of thorax | ||||
| S20.312A | Abrasion of left front wall of thorax, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.312D | Abrasion of left front wall of thorax, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.312S | Abrasion of left front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.313 Abrasion of bilateral front wall of thorax | ||||
| S20.313A | Abrasion of bilateral front wall of thorax, initial encounterCMS: Abrasion of bilateral front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.313D | Abrasion of bilateral front wall of thorax, subsequent encounterCMS: Abrasion of bilateral front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.313S | Abrasion of bilateral front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.314 Abrasion of middle front wall of thorax | ||||
| S20.314A | Abrasion of middle front wall of thorax, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.314D | Abrasion of middle front wall of thorax, subsequent encounterCMS: Abrasion of middle front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.314S | Abrasion of middle front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.319 Abrasion of unspecified front wall of thorax | ||||
| S20.319A | Abrasion of unspecified front wall of thorax, initial encounterCMS: Abrasion of unspecified front wall of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.319D | Abrasion of unspecified front wall of thorax, subsequent encounterCMS: Abrasion of unspecified front wall of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.319S | Abrasion of unspecified front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.32 Blister (nonthermal) of front wall of thorax | ||||
| S20.321 Blister (nonthermal) of right front wall of thorax | ||||
| S20.321A | Blister (nonthermal) of right front wall of thorax, initial encounterCMS: Blister (nonthermal) of right front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.321D | Blister (nonthermal) of right front wall of thorax, subsequent encounterCMS: Blister (nonthermal) of right front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.321S | Blister (nonthermal) of right front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.322 Blister (nonthermal) of left front wall of thorax | ||||
| S20.322A | Blister (nonthermal) of left front wall of thorax, initial encounterCMS: Blister (nonthermal) of left front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.322D | Blister (nonthermal) of left front wall of thorax, subsequent encounterCMS: Blister (nonthermal) of left front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.322S | Blister (nonthermal) of left front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.323 Blister (nonthermal) of bilateral front wall of thorax | ||||
| S20.323A | Blister (nonthermal) of bilateral front wall of thorax, initial encounterCMS: Blister (nonthermal) of bilateral front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.323D | Blister (nonthermal) of bilateral front wall of thorax, subsequent encounterCMS: Blister (nonthermal) of bilateral front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.323S | Blister (nonthermal) of bilateral front wall of thorax, sequelaCMS: Blister of bilateral front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.324 Blister (nonthermal) of middle front wall of thorax | ||||
| S20.324A | Blister (nonthermal) of middle front wall of thorax, initial encounterCMS: Blister (nonthermal) of middle front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.324D | Blister (nonthermal) of middle front wall of thorax, subsequent encounterCMS: Blister (nonthermal) of middle front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.324S | Blister (nonthermal) of middle front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.329 Blister (nonthermal) of unspecified front wall of thorax | ||||
| S20.329A | Blister (nonthermal) of unspecified front wall of thorax, initial encounterCMS: Blister (nonthermal) of unsp front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.329D | Blister (nonthermal) of unspecified front wall of thorax, subsequent encounterCMS: Blister (nonthermal) of unsp front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.329S | Blister (nonthermal) of unspecified front wall of thorax, sequelaCMS: Blister (nonthermal) of unsp front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.34 External constriction of front wall of thorax | ||||
| S20.341 External constriction of right front wall of thorax | ||||
| S20.341A | External constriction of right front wall of thorax, initial encounterCMS: External constriction of right front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.341D | External constriction of right front wall of thorax, subsequent encounterCMS: External constriction of right front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.341S | External constriction of right front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.342 External constriction of left front wall of thorax | ||||
| S20.342A | External constriction of left front wall of thorax, initial encounterCMS: External constriction of left front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.342D | External constriction of left front wall of thorax, subsequent encounterCMS: External constriction of left front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.342S | External constriction of left front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.343 External constriction of bilateral front wall of thorax | ||||
| S20.343A | External constriction of bilateral front wall of thorax, initial encounterCMS: External constrict of bilateral front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.343D | External constriction of bilateral front wall of thorax, subsequent encounterCMS: External constrict of bilateral front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.343S | External constriction of bilateral front wall of thorax, sequelaCMS: External constrict of bi front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.344 External constriction of middle front wall of thorax | ||||
| S20.344A | External constriction of middle front wall of thorax, initial encounterCMS: External constriction of middle front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.344D | External constriction of middle front wall of thorax, subsequent encounterCMS: External constriction of middle front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.344S | External constriction of middle front wall of thorax, sequelaCMS: External constrict of middle front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.349 External constriction of unspecified front wall of thorax | ||||
| S20.349A | External constriction of unspecified front wall of thorax, initial encounterCMS: External constriction of unsp front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.349D | External constriction of unspecified front wall of thorax, subsequent encounterCMS: External constriction of unsp front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.349S | External constriction of unspecified front wall of thorax, sequelaCMS: External constriction of unsp front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.35 Superficial foreign body of front wall of thorax | ||||
| S20.351 Superficial foreign body of right front wall of thorax | ||||
| S20.351A | Superficial foreign body of right front wall of thorax, initial encounterCMS: Superficial foreign body of right front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.351D | Superficial foreign body of right front wall of thorax, subsequent encounterCMS: Superficial foreign body of right front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.351S | Superficial foreign body of right front wall of thorax, sequelaCMS: Superficial foreign body of r frnt wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.352 Superficial foreign body of left front wall of thorax | ||||
| S20.352A | Superficial foreign body of left front wall of thorax, initial encounterCMS: Superficial foreign body of left front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.352D | Superficial foreign body of left front wall of thorax, subsequent encounterCMS: Superficial foreign body of left front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.352S | Superficial foreign body of left front wall of thorax, sequelaCMS: Superficial foreign body of l frnt wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.353 Superficial foreign body of bilateral front wall of thorax | ||||
| S20.353A | Superficial foreign body of bilateral front wall of thorax, initial encounterCMS: Superficial fb of bilateral front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.353D | Superficial foreign body of bilateral front wall of thorax, subsequent encounterCMS: Superficial fb of bilateral front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.353S | Superficial foreign body of bilateral front wall of thorax, sequelaCMS: Superficial fb of bilateral front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.354 Superficial foreign body of middle front wall of thorax | ||||
| S20.354A | Superficial foreign body of middle front wall of thorax, initial encounterCMS: Superficial fb of middle front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.354D | Superficial foreign body of middle front wall of thorax, subsequent encounterCMS: Superficial fb of middle front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.354S | Superficial foreign body of middle front wall of thorax, sequelaCMS: Superficial fb of middle front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.359 Superficial foreign body of unspecified front wall of thorax | ||||
| S20.359A | Superficial foreign body of unspecified front wall of thorax, initial encounterCMS: Superficial foreign body of unsp front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.359D | Superficial foreign body of unspecified front wall of thorax, subsequent encounterCMS: Superficial foreign body of unsp front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.359S | Superficial foreign body of unspecified front wall of thorax, sequelaCMS: Superficial fb of unsp front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.36 Insect bite (nonvenomous) of front wall of thorax | ||||
| S20.361 Insect bite (nonvenomous) of right front wall of thorax | ||||
| S20.361A | Insect bite (nonvenomous) of right front wall of thorax, initial encounterCMS: Insect bite (nonvenomous) of r frnt wl of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.361D | Insect bite (nonvenomous) of right front wall of thorax, subsequent encounterCMS: Insect bite (nonvenomous) of r frnt wl of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.361S | Insect bite (nonvenomous) of right front wall of thorax, sequelaCMS: Insect bite (nonvenomous) of r frnt wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.362 Insect bite (nonvenomous) of left front wall of thorax | ||||
| S20.362A | Insect bite (nonvenomous) of left front wall of thorax, initial encounterCMS: Insect bite (nonvenomous) of left front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.362D | Insect bite (nonvenomous) of left front wall of thorax, subsequent encounterCMS: Insect bite (nonvenomous) of left front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.362S | Insect bite (nonvenomous) of left front wall of thorax, sequelaCMS: Insect bite (nonvenomous) of l frnt wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.363 Insect bite (nonvenomous) of bilateral front wall of thorax | ||||
| S20.363A | Insect bite (nonvenomous) of bilateral front wall of thorax, initial encounterCMS: Insect bite of bilateral front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.363D | Insect bite (nonvenomous) of bilateral front wall of thorax, subsequent encounterCMS: Insect bite of bilateral front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.363S | Insect bite (nonvenomous) of bilateral front wall of thorax, sequelaCMS: Insect bite of bilateral front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.364 Insect bite (nonvenomous) of middle front wall of thorax | ||||
| S20.364A | Insect bite (nonvenomous) of middle front wall of thorax, initial encounterCMS: Insect bite of middle front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.364D | Insect bite (nonvenomous) of middle front wall of thorax, subsequent encounterCMS: Insect bite of middle front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.364S | Insect bite (nonvenomous) of middle front wall of thorax, sequelaCMS: Insect bite of middle front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.369 Insect bite (nonvenomous) of unspecified front wall of thorax | ||||
| S20.369A | Insect bite (nonvenomous) of unspecified front wall of thorax, initial encounterCMS: Insect bite (nonvenomous) of unsp front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.369D | Insect bite (nonvenomous) of unspecified front wall of thorax, subsequent encounterCMS: Insect bite (nonvenomous) of unsp front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.369S | Insect bite (nonvenomous) of unspecified front wall of thorax, sequelaCMS: Insect bite of unsp front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.37 Other superficial bite of front wall of thorax | ||||
| S20.371 Other superficial bite of right front wall of thorax | ||||
| S20.371A | Other superficial bite of right front wall of thorax, initial encounterCMS: Oth superficial bite of right front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.371D | Other superficial bite of right front wall of thorax, subsequent encounterCMS: Oth superficial bite of right front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.371S | Other superficial bite of right front wall of thorax, sequelaCMS: Oth superficial bite of right front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.372 Other superficial bite of left front wall of thorax | ||||
| S20.372A | Other superficial bite of left front wall of thorax, initial encounterCMS: Oth superficial bite of left front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.372D | Other superficial bite of left front wall of thorax, subsequent encounterCMS: Oth superficial bite of left front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.372S | Other superficial bite of left front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.373 Other superficial bite of bilateral front wall of thorax | ||||
| S20.373A | Other superficial bite of bilateral front wall of thorax, initial encounterCMS: Other superfic bite of bilateral front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.373D | Other superficial bite of bilateral front wall of thorax, subsequent encounterCMS: Other superfic bite of bilateral front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.373S | Other superficial bite of bilateral front wall of thorax, sequelaCMS: Other superfic bite of bi front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.374 Other superficial bite of middle front wall of thorax | ||||
| S20.374A | Other superficial bite of middle front wall of thorax, initial encounterCMS: Other superficial bite of middle front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.374D | Other superficial bite of middle front wall of thorax, subsequent encounterCMS: Other superficial bite of middle front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.374S | Other superficial bite of middle front wall of thorax, sequelaCMS: Other superfic bite of middle front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.379 Other superficial bite of unspecified front wall of thorax | ||||
| S20.379A | Other superficial bite of unspecified front wall of thorax, initial encounterCMS: Oth superficial bite of unsp front wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.379D | Other superficial bite of unspecified front wall of thorax, subsequent encounterCMS: Oth superficial bite of unsp front wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.379S | Other superficial bite of unspecified front wall of thorax, sequelaCMS: Other superficial bite of unsp front wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.4 Other and unspecified superficial injuries of back wall of thorax | ||||
| S20.40 Unspecified superficial injuries of back wall of thorax | ||||
| S20.401 Unspecified superficial injuries of right back wall of thorax | ||||
| S20.401A | Unspecified superficial injuries of right back wall of thorax, initial encounterCMS: Unsp superficial injuries of right back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.401D | Unspecified superficial injuries of right back wall of thorax, subsequent encounterCMS: Unsp superficial injuries of right back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.401S | Unspecified superficial injuries of right back wall of thorax, sequelaCMS: Unsp superficial injuries of r bk wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.402 Unspecified superficial injuries of left back wall of thorax | ||||
| S20.402A | Unspecified superficial injuries of left back wall of thorax, initial encounterCMS: Unsp superficial injuries of left back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.402D | Unspecified superficial injuries of left back wall of thorax, subsequent encounterCMS: Unsp superficial injuries of left back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.402S | Unspecified superficial injuries of left back wall of thorax, sequelaCMS: Unsp superficial injuries of l bk wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.409 Unspecified superficial injuries of unspecified back wall of thorax | ||||
| S20.409A | Unspecified superficial injuries of unspecified back wall of thorax, initial encounterCMS: Unsp superficial injuries of unsp back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.409D | Unspecified superficial injuries of unspecified back wall of thorax, subsequent encounterCMS: Unsp superficial injuries of unsp back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.409S | Unspecified superficial injuries of unspecified back wall of thorax, sequelaCMS: Unsp superfic injuries of unsp back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.41 Abrasion of back wall of thorax | ||||
| S20.411 Abrasion of right back wall of thorax | ||||
| S20.411A | Abrasion of right back wall of thorax, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.411D | Abrasion of right back wall of thorax, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.411S | Abrasion of right back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.412 Abrasion of left back wall of thorax | ||||
| S20.412A | Abrasion of left back wall of thorax, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.412D | Abrasion of left back wall of thorax, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.412S | Abrasion of left back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.419 Abrasion of unspecified back wall of thorax | ||||
| S20.419A | Abrasion of unspecified back wall of thorax, initial encounterCMS: Abrasion of unspecified back wall of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.419D | Abrasion of unspecified back wall of thorax, subsequent encounterCMS: Abrasion of unspecified back wall of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.419S | Abrasion of unspecified back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.42 Blister (nonthermal) of back wall of thorax | ||||
| S20.421 Blister (nonthermal) of right back wall of thorax | ||||
| S20.421A | Blister (nonthermal) of right back wall of thorax, initial encounterCMS: Blister (nonthermal) of right back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.421D | Blister (nonthermal) of right back wall of thorax, subsequent encounterCMS: Blister (nonthermal) of right back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.421S | Blister (nonthermal) of right back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.422 Blister (nonthermal) of left back wall of thorax | ||||
| S20.422A | Blister (nonthermal) of left back wall of thorax, initial encounterCMS: Blister (nonthermal) of left back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.422D | Blister (nonthermal) of left back wall of thorax, subsequent encounterCMS: Blister (nonthermal) of left back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.422S | Blister (nonthermal) of left back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.429 Blister (nonthermal) of unspecified back wall of thorax | ||||
| S20.429A | Blister (nonthermal) of unspecified back wall of thorax, initial encounterCMS: Blister (nonthermal) of unsp back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.429D | Blister (nonthermal) of unspecified back wall of thorax, subsequent encounterCMS: Blister (nonthermal) of unsp back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.429S | Blister (nonthermal) of unspecified back wall of thorax, sequelaCMS: Blister (nonthermal) of unsp back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.44 External constriction of back wall of thorax | ||||
| S20.441 External constriction of right back wall of thorax | ||||
| S20.441A | External constriction of right back wall of thorax, initial encounterCMS: External constriction of right back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.441D | External constriction of right back wall of thorax, subsequent encounterCMS: External constriction of right back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.441S | External constriction of right back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.442 External constriction of left back wall of thorax | ||||
| S20.442A | External constriction of left back wall of thorax, initial encounterCMS: External constriction of left back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.442D | External constriction of left back wall of thorax, subsequent encounterCMS: External constriction of left back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.442S | External constriction of left back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.449 External constriction of unspecified back wall of thorax | ||||
| S20.449A | External constriction of unspecified back wall of thorax, initial encounterCMS: External constriction of unsp back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.449D | External constriction of unspecified back wall of thorax, subsequent encounterCMS: External constriction of unsp back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.449S | External constriction of unspecified back wall of thorax, sequelaCMS: External constriction of unsp back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.45 Superficial foreign body of back wall of thorax | ||||
| S20.451 Superficial foreign body of right back wall of thorax | ||||
| S20.451A | Superficial foreign body of right back wall of thorax, initial encounterCMS: Superficial foreign body of right back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.451D | Superficial foreign body of right back wall of thorax, subsequent encounterCMS: Superficial foreign body of right back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.451S | Superficial foreign body of right back wall of thorax, sequelaCMS: Superficial foreign body of r bk wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.452 Superficial foreign body of left back wall of thorax | ||||
| S20.452A | Superficial foreign body of left back wall of thorax, initial encounterCMS: Superficial foreign body of left back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.452D | Superficial foreign body of left back wall of thorax, subsequent encounterCMS: Superficial foreign body of left back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.452S | Superficial foreign body of left back wall of thorax, sequelaCMS: Superficial foreign body of l bk wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.459 Superficial foreign body of unspecified back wall of thorax | ||||
| S20.459A | Superficial foreign body of unspecified back wall of thorax, initial encounterCMS: Superficial foreign body of unsp back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.459D | Superficial foreign body of unspecified back wall of thorax, subsequent encounterCMS: Superficial foreign body of unsp back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.459S | Superficial foreign body of unspecified back wall of thorax, sequelaCMS: Superficial fb of unsp back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.46 Insect bite (nonvenomous) of back wall of thorax | ||||
| S20.461 Insect bite (nonvenomous) of right back wall of thorax | ||||
| S20.461A | Insect bite (nonvenomous) of right back wall of thorax, initial encounterCMS: Insect bite (nonvenomous) of right back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.461D | Insect bite (nonvenomous) of right back wall of thorax, subsequent encounterCMS: Insect bite (nonvenomous) of right back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.461S | Insect bite (nonvenomous) of right back wall of thorax, sequelaCMS: Insect bite (nonvenomous) of r bk wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.462 Insect bite (nonvenomous) of left back wall of thorax | ||||
| S20.462A | Insect bite (nonvenomous) of left back wall of thorax, initial encounterCMS: Insect bite (nonvenomous) of left back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.462D | Insect bite (nonvenomous) of left back wall of thorax, subsequent encounterCMS: Insect bite (nonvenomous) of left back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.462S | Insect bite (nonvenomous) of left back wall of thorax, sequelaCMS: Insect bite (nonvenomous) of l bk wl of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.469 Insect bite (nonvenomous) of unspecified back wall of thorax | ||||
| S20.469A | Insect bite (nonvenomous) of unspecified back wall of thorax, initial encounterCMS: Insect bite (nonvenomous) of unsp back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.469D | Insect bite (nonvenomous) of unspecified back wall of thorax, subsequent encounterCMS: Insect bite (nonvenomous) of unsp back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.469S | Insect bite (nonvenomous) of unspecified back wall of thorax, sequelaCMS: Insect bite of unsp back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.47 Other superficial bite of back wall of thorax | ||||
| S20.471 Other superficial bite of right back wall of thorax | ||||
| S20.471A | Other superficial bite of right back wall of thorax, initial encounterCMS: Oth superficial bite of right back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.471D | Other superficial bite of right back wall of thorax, subsequent encounterCMS: Oth superficial bite of right back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.471S | Other superficial bite of right back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.472 Other superficial bite of left back wall of thorax | ||||
| S20.472A | Other superficial bite of left back wall of thorax, initial encounterCMS: Oth superficial bite of left back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.472D | Other superficial bite of left back wall of thorax, subsequent encounterCMS: Oth superficial bite of left back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.472S | Other superficial bite of left back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.479 Other superficial bite of unspecified back wall of thorax | ||||
| S20.479A | Other superficial bite of unspecified back wall of thorax, initial encounterCMS: Oth superficial bite of unsp back wall of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.479D | Other superficial bite of unspecified back wall of thorax, subsequent encounterCMS: Oth superficial bite of unsp back wall of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.479S | Other superficial bite of unspecified back wall of thorax, sequelaCMS: Other superficial bite of unsp back wall of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.9 Superficial injury of unspecified parts of thorax | ||||
| S20.90 Unspecified superficial injury of unspecified parts of thorax | ||||
| S20.90XA | Unspecified superficial injury of unspecified parts of thorax, initial encounterCMS: Unsp superficial injury of unsp parts of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.90XD | Unspecified superficial injury of unspecified parts of thorax, subsequent encounterCMS: Unsp superficial injury of unsp parts of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.90XS | Unspecified superficial injury of unspecified parts of thorax, sequelaCMS: Unsp superficial injury of unsp parts of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.91 Abrasion of unspecified parts of thorax | ||||
| S20.91XA | Abrasion of unspecified parts of thorax, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.91XD | Abrasion of unspecified parts of thorax, subsequent encounterCMS: Abrasion of unspecified parts of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.91XS | Abrasion of unspecified parts of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.92 Blister (nonthermal) of unspecified parts of thorax | ||||
| S20.92XA | Blister (nonthermal) of unspecified parts of thorax, initial encounterCMS: Blister (nonthermal) of unsp parts of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.92XD | Blister (nonthermal) of unspecified parts of thorax, subsequent encounterCMS: Blister (nonthermal) of unsp parts of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.92XS | Blister (nonthermal) of unspecified parts of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.94 External constriction of unspecified parts of thorax | ||||
| S20.94XA | External constriction of unspecified parts of thorax, initial encounterCMS: External constriction of unsp parts of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.94XD | External constriction of unspecified parts of thorax, subsequent encounterCMS: External constriction of unsp parts of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.94XS | External constriction of unspecified parts of thorax, sequelaCMS: External constriction of unsp parts of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.95 Superficial foreign body of unspecified parts of thorax | ||||
| S20.95XA | Superficial foreign body of unspecified parts of thorax, initial encounterCMS: Superficial foreign body of unsp parts of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.95XD | Superficial foreign body of unspecified parts of thorax, subsequent encounterCMS: Superficial foreign body of unsp parts of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.95XS | Superficial foreign body of unspecified parts of thorax, sequelaCMS: Superficial foreign body of unsp parts of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.96 Insect bite (nonvenomous) of unspecified parts of thorax | ||||
| S20.96XA | Insect bite (nonvenomous) of unspecified parts of thorax, initial encounterCMS: Insect bite (nonvenomous) of unsp parts of thorax, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.96XD | Insect bite (nonvenomous) of unspecified parts of thorax, subsequent encounterCMS: Insect bite (nonvenomous) of unsp parts of thorax, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.96XS | Insect bite (nonvenomous) of unspecified parts of thorax, sequelaCMS: Insect bite (nonvenomous) of unsp parts of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.97 Other superficial bite of unspecified parts of thorax | ||||
| S20.97XA | Other superficial bite of unspecified parts of thorax, initial encounterCMS: Other superficial bite of unsp parts of thorax, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.97XD | Other superficial bite of unspecified parts of thorax, subsequent encounterCMS: Other superficial bite of unsp parts of thorax, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S20.97XS | Other superficial bite of unspecified parts of thorax, sequelaCMS: Other superficial bite of unsp parts of thorax, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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