ICD-10 · PDGM grouping
T28 Burn and corrosion of other internal organs
All 54 codes in the T28 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
54
Can lead a claim
21
Cannot lead a claim
33
What CMS assigns to T28
21 of the 54 codes group to MMTA - Other; 33 are assigned no clinical group. None of the 54 is assigned a comorbidity subgroup. 21 of the 54 can lead a claim. CMS attaches a code-first note to 27 of the 54.
Code first
CMS grouper convention 8, on T28.5XXA, T28.5XXD, T28.5XXS, T28.6XXA, T28.6XXD, T28.6XXS, T28.7XXA, T28.7XXD, T28.7XXS, T28.8XXA, T28.8XXD, T28.8XXS, T28.90XA, T28.90XD, T28.90XS, T28.911A, T28.911D, T28.911S, T28.912A, T28.912D, T28.912S, T28.919A, T28.919D, T28.919S, T28.99XA, T28.99XD, T28.99XS. Code first:
- , if applicable, toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
Every code in T28
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 |
|---|---|---|---|---|
| T28.0 Burn of mouth and pharynx | ||||
| T28.0XXA | Burn of mouth and pharynx, initial encounter | Can lead a claim | A | None |
| T28.0XXD | Burn of mouth and pharynx, subsequent encounter | Can lead a claim | A | None |
| T28.0XXS | Burn of mouth and pharynx, sequela | Can lead a claim | A | None |
| T28.1 Burn of esophagus | ||||
| T28.1XXA | Burn of esophagus, initial encounter | Can lead a claim | A | None |
| T28.1XXD | Burn of esophagus, subsequent encounter | Can lead a claim | A | None |
| T28.1XXS | Burn of esophagus, sequela | Can lead a claim | A | None |
| T28.2 Burn of other parts of alimentary tract | ||||
| T28.2XXA | Burn of other parts of alimentary tract, initial encounter | Can lead a claim | A | None |
| T28.2XXD | Burn of other parts of alimentary tract, subsequent encounterCMS: Burn of other parts of alimentary tract, subs encntr | Can lead a claim | A | None |
| T28.2XXS | Burn of other parts of alimentary tract, sequela | Can lead a claim | A | None |
| T28.3 Burn of internal genitourinary organs | ||||
| T28.3XXA | Burn of internal genitourinary organs, initial encounter | Can lead a claim | A | None |
| T28.3XXD | Burn of internal genitourinary organs, subsequent encounter | Can lead a claim | A | None |
| T28.3XXS | Burn of internal genitourinary organs, sequela | Can lead a claim | A | None |
| T28.4 Burns of other and unspecified internal organs | ||||
| T28.40 Burn of unspecified internal organ | ||||
| T28.40XA | Burn of unspecified internal organ, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.40XD | Burn of unspecified internal organ, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.40XS | Burn of unspecified internal organ, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.41 Burn of ear drum | ||||
| T28.411 Burn of right ear drum | ||||
| T28.411A | Burn of right ear drum, initial encounter | Can lead a claim | A | None |
| T28.411D | Burn of right ear drum, subsequent encounter | Can lead a claim | A | None |
| T28.411S | Burn of right ear drum, sequela | Can lead a claim | A | None |
| T28.412 Burn of left ear drum | ||||
| T28.412A | Burn of left ear drum, initial encounter | Can lead a claim | A | None |
| T28.412D | Burn of left ear drum, subsequent encounter | Can lead a claim | A | None |
| T28.412S | Burn of left ear drum, sequela | Can lead a claim | A | None |
| T28.419 Burn of unspecified ear drum | ||||
| T28.419A | Burn of unspecified ear drum, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.419D | Burn of unspecified ear drum, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.419S | Burn of unspecified ear drum, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.49 Burn of other internal organ | ||||
| T28.49XA | Burn of other internal organ, initial encounter | Can lead a claim | A | None |
| T28.49XD | Burn of other internal organ, subsequent encounter | Can lead a claim | A | None |
| T28.49XS | Burn of other internal organ, sequela | Can lead a claim | A | None |
| T28.5 Corrosion of mouth and pharynx | ||||
| T28.5XXA | Corrosion of mouth and pharynx, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.5XXD | Corrosion of mouth and pharynx, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.5XXS | Corrosion of mouth and pharynx, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.6 Corrosion of esophagus | ||||
| T28.6XXA | Corrosion of esophagus, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.6XXD | Corrosion of esophagus, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.6XXS | Corrosion of esophagus, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.7 Corrosion of other parts of alimentary tract | ||||
| T28.7XXA | Corrosion of other parts of alimentary tract, initial encounterCMS: Corrosion of other parts of alimentary tract, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.7XXD | Corrosion of other parts of alimentary tract, subsequent encounterCMS: Corrosion of other parts of alimentary tract, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.7XXS | Corrosion of other parts of alimentary tract, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.8 Corrosion of internal genitourinary organs | ||||
| T28.8XXA | Corrosion of internal genitourinary organs, initial encounterCMS: Corrosion of internal genitourinary organs, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.8XXD | Corrosion of internal genitourinary organs, subsequent encounterCMS: Corrosion of internal genitourinary organs, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.8XXS | Corrosion of internal genitourinary organs, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.9 Corrosions of other and unspecified internal organs | ||||
| T28.90 Corrosions of unspecified internal organs | ||||
| T28.90XA | Corrosions of unspecified internal organs, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.90XD | Corrosions of unspecified internal organs, subsequent encounterCMS: Corrosions of unspecified internal organs, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.90XS | Corrosions of unspecified internal organs, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.91 Corrosions of ear drum | ||||
| T28.911 Corrosions of right ear drum | ||||
| T28.911A | Corrosions of right ear drum, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.911D | Corrosions of right ear drum, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.911S | Corrosions of right ear drum, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.912 Corrosions of left ear drum | ||||
| T28.912A | Corrosions of left ear drum, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.912D | Corrosions of left ear drum, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.912S | Corrosions of left ear drum, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.919 Corrosions of unspecified ear drum | ||||
| T28.919A | Corrosions of unspecified ear drum, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.919D | Corrosions of unspecified ear drum, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.919S | Corrosions of unspecified ear drum, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.99 Corrosions of other internal organs | ||||
| T28.99XA | Corrosions of other internal organs, initial encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.99XD | Corrosions of other internal organs, subsequent encounter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T28.99XS | Corrosions of other internal organs, 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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