ICD-10 · PDGM grouping
T34 Frostbite with tissue necrosis
All 111 codes in the T34 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
111
Can lead a claim
78
Cannot lead a claim
33
What CMS assigns to T34
78 of the 111 codes group to MMTA - Other; 33 are assigned no clinical group. None of the 111 is assigned a comorbidity subgroup. 78 of the 111 can lead a claim.
Every code in T34
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 |
|---|---|---|---|---|
| T34.0 Frostbite with tissue necrosis of head | ||||
| T34.01 Frostbite with tissue necrosis of ear | ||||
| T34.011 Frostbite with tissue necrosis of right ear | ||||
| T34.011A | Frostbite with tissue necrosis of right ear, initial encounterCMS: Frostbite with tissue necrosis of right ear, init encntr | Can lead a claim | A | None |
| T34.011D | Frostbite with tissue necrosis of right ear, subsequent encounterCMS: Frostbite with tissue necrosis of right ear, subs encntr | Can lead a claim | A | None |
| T34.011S | Frostbite with tissue necrosis of right ear, sequela | Can lead a claim | A | None |
| T34.012 Frostbite with tissue necrosis of left ear | ||||
| T34.012A | Frostbite with tissue necrosis of left ear, initial encounterCMS: Frostbite with tissue necrosis of left ear, init encntr | Can lead a claim | A | None |
| T34.012D | Frostbite with tissue necrosis of left ear, subsequent encounterCMS: Frostbite with tissue necrosis of left ear, subs encntr | Can lead a claim | A | None |
| T34.012S | Frostbite with tissue necrosis of left ear, sequela | Can lead a claim | A | None |
| T34.019 Frostbite with tissue necrosis of unspecified ear | ||||
| T34.019A | Frostbite with tissue necrosis of unspecified ear, initial encounterCMS: Frostbite with tissue necrosis of unsp ear, init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.019D | Frostbite with tissue necrosis of unspecified ear, subsequent encounterCMS: Frostbite with tissue necrosis of unsp ear, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.019S | Frostbite with tissue necrosis of unspecified ear, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.02 Frostbite with tissue necrosis of nose | ||||
| T34.02XA | Frostbite with tissue necrosis of nose, initial encounter | Can lead a claim | A | None |
| T34.02XD | Frostbite with tissue necrosis of nose, subsequent encounter | Can lead a claim | A | None |
| T34.02XS | Frostbite with tissue necrosis of nose, sequela | Can lead a claim | A | None |
| T34.09 Frostbite with tissue necrosis of other part of head | ||||
| T34.09XA | Frostbite with tissue necrosis of other part of head, initial encounterCMS: Frostbite w tissue necrosis of oth part of head, init encntr | Can lead a claim | A | None |
| T34.09XD | Frostbite with tissue necrosis of other part of head, subsequent encounterCMS: Frostbite w tissue necrosis of oth part of head, subs encntr | Can lead a claim | A | None |
| T34.09XS | Frostbite with tissue necrosis of other part of head, sequelaCMS: Frostbite with tissue necrosis of oth part of head, sequela | Can lead a claim | A | None |
| T34.1 Frostbite with tissue necrosis of neck | ||||
| T34.1XXA | Frostbite with tissue necrosis of neck, initial encounter | Can lead a claim | A | None |
| T34.1XXD | Frostbite with tissue necrosis of neck, subsequent encounter | Can lead a claim | A | None |
| T34.1XXS | Frostbite with tissue necrosis of neck, sequela | Can lead a claim | A | None |
| T34.2 Frostbite with tissue necrosis of thorax | ||||
| T34.2XXA | Frostbite with tissue necrosis of thorax, initial encounter | Can lead a claim | A | None |
| T34.2XXD | Frostbite with tissue necrosis of thorax, subsequent encounterCMS: Frostbite with tissue necrosis of thorax, subs encntr | Can lead a claim | A | None |
| T34.2XXS | Frostbite with tissue necrosis of thorax, sequela | Can lead a claim | A | None |
| T34.3 Frostbite with tissue necrosis of abdominal wall, lower back and pelvis | ||||
| T34.3XXA | Frostbite with tissue necrosis of abdominal wall, lower back and pelvis, initial encounterCMS: Frstbte w tissue necros abd wall, low back and pelvis, init | Can lead a claim | A | None |
| T34.3XXD | Frostbite with tissue necrosis of abdominal wall, lower back and pelvis, subsequent encounterCMS: Frstbte w tissue necros abd wall, low back and pelvis, subs | Can lead a claim | A | None |
| T34.3XXS | Frostbite with tissue necrosis of abdominal wall, lower back and pelvis, sequelaCMS: Frstbte w tissue necros abd wall, low back and pelvis, sqla | Can lead a claim | A | None |
| T34.4 Frostbite with tissue necrosis of arm | ||||
| T34.40 Frostbite with tissue necrosis of unspecified arm | ||||
| T34.40XA | Frostbite with tissue necrosis of unspecified arm, initial encounterCMS: Frostbite with tissue necrosis of unsp arm, init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.40XD | Frostbite with tissue necrosis of unspecified arm, subsequent encounterCMS: Frostbite with tissue necrosis of unsp arm, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.40XS | Frostbite with tissue necrosis of unspecified arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.41 Frostbite with tissue necrosis of right arm | ||||
| T34.41XA | Frostbite with tissue necrosis of right arm, initial encounterCMS: Frostbite with tissue necrosis of right arm, init encntr | Can lead a claim | A | None |
| T34.41XD | Frostbite with tissue necrosis of right arm, subsequent encounterCMS: Frostbite with tissue necrosis of right arm, subs encntr | Can lead a claim | A | None |
| T34.41XS | Frostbite with tissue necrosis of right arm, sequela | Can lead a claim | A | None |
| T34.42 Frostbite with tissue necrosis of left arm | ||||
| T34.42XA | Frostbite with tissue necrosis of left arm, initial encounterCMS: Frostbite with tissue necrosis of left arm, init encntr | Can lead a claim | A | None |
| T34.42XD | Frostbite with tissue necrosis of left arm, subsequent encounterCMS: Frostbite with tissue necrosis of left arm, subs encntr | Can lead a claim | A | None |
| T34.42XS | Frostbite with tissue necrosis of left arm, sequela | Can lead a claim | A | None |
| T34.5 Frostbite with tissue necrosis of wrist, hand, and finger(s) | ||||
| T34.51 Frostbite with tissue necrosis of wrist | ||||
| T34.511 Frostbite with tissue necrosis of right wrist | ||||
| T34.511A | Frostbite with tissue necrosis of right wrist, initial encounterCMS: Frostbite with tissue necrosis of right wrist, init encntr | Can lead a claim | A | None |
| T34.511D | Frostbite with tissue necrosis of right wrist, subsequent encounterCMS: Frostbite with tissue necrosis of right wrist, subs encntr | Can lead a claim | A | None |
| T34.511S | Frostbite with tissue necrosis of right wrist, sequela | Can lead a claim | A | None |
| T34.512 Frostbite with tissue necrosis of left wrist | ||||
| T34.512A | Frostbite with tissue necrosis of left wrist, initial encounterCMS: Frostbite with tissue necrosis of left wrist, init encntr | Can lead a claim | A | None |
| T34.512D | Frostbite with tissue necrosis of left wrist, subsequent encounterCMS: Frostbite with tissue necrosis of left wrist, subs encntr | Can lead a claim | A | None |
| T34.512S | Frostbite with tissue necrosis of left wrist, sequela | Can lead a claim | A | None |
| T34.519 Frostbite with tissue necrosis of unspecified wrist | ||||
| T34.519A | Frostbite with tissue necrosis of unspecified wrist, initial encounterCMS: Frostbite with tissue necrosis of unsp wrist, init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.519D | Frostbite with tissue necrosis of unspecified wrist, subsequent encounterCMS: Frostbite with tissue necrosis of unsp wrist, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.519S | Frostbite with tissue necrosis of unspecified wrist, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.52 Frostbite with tissue necrosis of hand | ||||
| T34.521 Frostbite with tissue necrosis of right hand | ||||
| T34.521A | Frostbite with tissue necrosis of right hand, initial encounterCMS: Frostbite with tissue necrosis of right hand, init encntr | Can lead a claim | A | None |
| T34.521D | Frostbite with tissue necrosis of right hand, subsequent encounterCMS: Frostbite with tissue necrosis of right hand, subs encntr | Can lead a claim | A | None |
| T34.521S | Frostbite with tissue necrosis of right hand, sequela | Can lead a claim | A | None |
| T34.522 Frostbite with tissue necrosis of left hand | ||||
| T34.522A | Frostbite with tissue necrosis of left hand, initial encounterCMS: Frostbite with tissue necrosis of left hand, init encntr | Can lead a claim | A | None |
| T34.522D | Frostbite with tissue necrosis of left hand, subsequent encounterCMS: Frostbite with tissue necrosis of left hand, subs encntr | Can lead a claim | A | None |
| T34.522S | Frostbite with tissue necrosis of left hand, sequela | Can lead a claim | A | None |
| T34.529 Frostbite with tissue necrosis of unspecified hand | ||||
| T34.529A | Frostbite with tissue necrosis of unspecified hand, initial encounterCMS: Frostbite with tissue necrosis of unsp hand, init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.529D | Frostbite with tissue necrosis of unspecified hand, subsequent encounterCMS: Frostbite with tissue necrosis of unsp hand, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.529S | Frostbite with tissue necrosis of unspecified hand, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.53 Frostbite with tissue necrosis of finger(s) | ||||
| T34.531 Frostbite with tissue necrosis of right finger(s) | ||||
| T34.531A | Frostbite with tissue necrosis of right finger(s), initial encounterCMS: Frostbite w tissue necrosis of right finger(s), init encntr | Can lead a claim | A | None |
| T34.531D | Frostbite with tissue necrosis of right finger(s), subsequent encounterCMS: Frostbite w tissue necrosis of right finger(s), subs encntr | Can lead a claim | A | None |
| T34.531S | Frostbite with tissue necrosis of right finger(s), sequela | Can lead a claim | A | None |
| T34.532 Frostbite with tissue necrosis of left finger(s) | ||||
| T34.532A | Frostbite with tissue necrosis of left finger(s), initial encounterCMS: Frostbite w tissue necrosis of left finger(s), init encntr | Can lead a claim | A | None |
| T34.532D | Frostbite with tissue necrosis of left finger(s), subsequent encounterCMS: Frostbite w tissue necrosis of left finger(s), subs encntr | Can lead a claim | A | None |
| T34.532S | Frostbite with tissue necrosis of left finger(s), sequela | Can lead a claim | A | None |
| T34.539 Frostbite with tissue necrosis of unspecified finger(s) | ||||
| T34.539A | Frostbite with tissue necrosis of unspecified finger(s), initial encounterCMS: Frostbite w tissue necrosis of unsp finger(s), init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.539D | Frostbite with tissue necrosis of unspecified finger(s), subsequent encounterCMS: Frostbite w tissue necrosis of unsp finger(s), subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.539S | Frostbite with tissue necrosis of unspecified finger(s), sequelaCMS: Frostbite with tissue necrosis of unsp finger(s), sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.6 Frostbite with tissue necrosis of hip and thigh | ||||
| T34.60 Frostbite with tissue necrosis of unspecified hip and thigh | ||||
| T34.60XA | Frostbite with tissue necrosis of unspecified hip and thigh, initial encounterCMS: Frostbite w tissue necrosis of unsp hip and thigh, init | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.60XD | Frostbite with tissue necrosis of unspecified hip and thigh, subsequent encounterCMS: Frostbite w tissue necrosis of unsp hip and thigh, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.60XS | Frostbite with tissue necrosis of unspecified hip and thigh, sequelaCMS: Frostbite w tissue necrosis of unsp hip and thigh, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.61 Frostbite with tissue necrosis of right hip and thigh | ||||
| T34.61XA | Frostbite with tissue necrosis of right hip and thigh, initial encounterCMS: Frostbite w tissue necrosis of right hip and thigh, init | Can lead a claim | A | None |
| T34.61XD | Frostbite with tissue necrosis of right hip and thigh, subsequent encounterCMS: Frostbite w tissue necrosis of right hip and thigh, subs | Can lead a claim | A | None |
| T34.61XS | Frostbite with tissue necrosis of right hip and thigh, sequelaCMS: Frostbite w tissue necrosis of right hip and thigh, sequela | Can lead a claim | A | None |
| T34.62 Frostbite with tissue necrosis of left hip and thigh | ||||
| T34.62XA | Frostbite with tissue necrosis of left hip and thigh, initial encounterCMS: Frostbite w tissue necrosis of left hip and thigh, init | Can lead a claim | A | None |
| T34.62XD | Frostbite with tissue necrosis of left hip and thigh, subsequent encounterCMS: Frostbite w tissue necrosis of left hip and thigh, subs | Can lead a claim | A | None |
| T34.62XS | Frostbite with tissue necrosis of left hip and thigh, sequelaCMS: Frostbite w tissue necrosis of left hip and thigh, sequela | Can lead a claim | A | None |
| T34.7 Frostbite with tissue necrosis of knee and lower leg | ||||
| T34.70 Frostbite with tissue necrosis of unspecified knee and lower leg | ||||
| T34.70XA | Frostbite with tissue necrosis of unspecified knee and lower leg, initial encounterCMS: Frostbite w tissue necrosis of unsp knee and lower leg, init | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.70XD | Frostbite with tissue necrosis of unspecified knee and lower leg, subsequent encounterCMS: Frostbite w tissue necrosis of unsp knee and lower leg, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.70XS | Frostbite with tissue necrosis of unspecified knee and lower leg, sequelaCMS: Frostbite w tissue necros unsp knee and lower leg, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.71 Frostbite with tissue necrosis of right knee and lower leg | ||||
| T34.71XA | Frostbite with tissue necrosis of right knee and lower leg, initial encounterCMS: Frostbite w tissue necros right knee and lower leg, init | Can lead a claim | A | None |
| T34.71XD | Frostbite with tissue necrosis of right knee and lower leg, subsequent encounterCMS: Frostbite w tissue necros right knee and lower leg, subs | Can lead a claim | A | None |
| T34.71XS | Frostbite with tissue necrosis of right knee and lower leg, sequelaCMS: Frostbite w tissue necros right knee and lower leg, sequela | Can lead a claim | A | None |
| T34.72 Frostbite with tissue necrosis of left knee and lower leg | ||||
| T34.72XA | Frostbite with tissue necrosis of left knee and lower leg, initial encounterCMS: Frostbite w tissue necrosis of left knee and lower leg, init | Can lead a claim | A | None |
| T34.72XD | Frostbite with tissue necrosis of left knee and lower leg, subsequent encounterCMS: Frostbite w tissue necrosis of left knee and lower leg, subs | Can lead a claim | A | None |
| T34.72XS | Frostbite with tissue necrosis of left knee and lower leg, sequelaCMS: Frostbite w tissue necros left knee and lower leg, sequela | Can lead a claim | A | None |
| T34.8 Frostbite with tissue necrosis of ankle, foot, and toe(s) | ||||
| T34.81 Frostbite with tissue necrosis of ankle | ||||
| T34.811 Frostbite with tissue necrosis of right ankle | ||||
| T34.811A | Frostbite with tissue necrosis of right ankle, initial encounterCMS: Frostbite with tissue necrosis of right ankle, init encntr | Can lead a claim | A | None |
| T34.811D | Frostbite with tissue necrosis of right ankle, subsequent encounterCMS: Frostbite with tissue necrosis of right ankle, subs encntr | Can lead a claim | A | None |
| T34.811S | Frostbite with tissue necrosis of right ankle, sequela | Can lead a claim | A | None |
| T34.812 Frostbite with tissue necrosis of left ankle | ||||
| T34.812A | Frostbite with tissue necrosis of left ankle, initial encounterCMS: Frostbite with tissue necrosis of left ankle, init encntr | Can lead a claim | A | None |
| T34.812D | Frostbite with tissue necrosis of left ankle, subsequent encounterCMS: Frostbite with tissue necrosis of left ankle, subs encntr | Can lead a claim | A | None |
| T34.812S | Frostbite with tissue necrosis of left ankle, sequela | Can lead a claim | A | None |
| T34.819 Frostbite with tissue necrosis of unspecified ankle | ||||
| T34.819A | Frostbite with tissue necrosis of unspecified ankle, initial encounterCMS: Frostbite with tissue necrosis of unsp ankle, init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.819D | Frostbite with tissue necrosis of unspecified ankle, subsequent encounterCMS: Frostbite with tissue necrosis of unsp ankle, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.819S | Frostbite with tissue necrosis of unspecified ankle, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.82 Frostbite with tissue necrosis of foot | ||||
| T34.821 Frostbite with tissue necrosis of right foot | ||||
| T34.821A | Frostbite with tissue necrosis of right foot, initial encounterCMS: Frostbite with tissue necrosis of right foot, init encntr | Can lead a claim | A | None |
| T34.821D | Frostbite with tissue necrosis of right foot, subsequent encounterCMS: Frostbite with tissue necrosis of right foot, subs encntr | Can lead a claim | A | None |
| T34.821S | Frostbite with tissue necrosis of right foot, sequela | Can lead a claim | A | None |
| T34.822 Frostbite with tissue necrosis of left foot | ||||
| T34.822A | Frostbite with tissue necrosis of left foot, initial encounterCMS: Frostbite with tissue necrosis of left foot, init encntr | Can lead a claim | A | None |
| T34.822D | Frostbite with tissue necrosis of left foot, subsequent encounterCMS: Frostbite with tissue necrosis of left foot, subs encntr | Can lead a claim | A | None |
| T34.822S | Frostbite with tissue necrosis of left foot, sequela | Can lead a claim | A | None |
| T34.829 Frostbite with tissue necrosis of unspecified foot | ||||
| T34.829A | Frostbite with tissue necrosis of unspecified foot, initial encounterCMS: Frostbite with tissue necrosis of unsp foot, init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.829D | Frostbite with tissue necrosis of unspecified foot, subsequent encounterCMS: Frostbite with tissue necrosis of unsp foot, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.829S | Frostbite with tissue necrosis of unspecified foot, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.83 Frostbite with tissue necrosis of toe(s) | ||||
| T34.831 Frostbite with tissue necrosis of right toe(s) | ||||
| T34.831A | Frostbite with tissue necrosis of right toe(s), initial encounterCMS: Frostbite with tissue necrosis of right toe(s), init encntr | Can lead a claim | A | None |
| T34.831D | Frostbite with tissue necrosis of right toe(s), subsequent encounterCMS: Frostbite with tissue necrosis of right toe(s), subs encntr | Can lead a claim | A | None |
| T34.831S | Frostbite with tissue necrosis of right toe(s), sequela | Can lead a claim | A | None |
| T34.832 Frostbite with tissue necrosis of left toe(s) | ||||
| T34.832A | Frostbite with tissue necrosis of left toe(s), initial encounterCMS: Frostbite with tissue necrosis of left toe(s), init encntr | Can lead a claim | A | None |
| T34.832D | Frostbite with tissue necrosis of left toe(s), subsequent encounterCMS: Frostbite with tissue necrosis of left toe(s), subs encntr | Can lead a claim | A | None |
| T34.832S | Frostbite with tissue necrosis of left toe(s), sequela | Can lead a claim | A | None |
| T34.839 Frostbite with tissue necrosis of unspecified toe(s) | ||||
| T34.839A | Frostbite with tissue necrosis of unspecified toe(s), initial encounterCMS: Frostbite with tissue necrosis of unsp toe(s), init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.839D | Frostbite with tissue necrosis of unspecified toe(s), subsequent encounterCMS: Frostbite with tissue necrosis of unsp toe(s), subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.839S | Frostbite with tissue necrosis of unspecified toe(s), sequelaCMS: Frostbite with tissue necrosis of unsp toe(s), sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.9 Frostbite with tissue necrosis of other and unspecified sites | ||||
| T34.90 Frostbite with tissue necrosis of unspecified sites | ||||
| T34.90XA | Frostbite with tissue necrosis of unspecified sites, initial encounterCMS: Frostbite with tissue necrosis of unsp sites, init encntr | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| T34.90XD | Frostbite with tissue necrosis of unspecified sites, subsequent encounterCMS: Frostbite with tissue necrosis of unsp sites, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.90XS | Frostbite with tissue necrosis of unspecified sites, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T34.99 Frostbite with tissue necrosis of other sites | ||||
| T34.99XA | Frostbite with tissue necrosis of other sites, initial encounterCMS: Frostbite with tissue necrosis of other sites, init encntr | Can lead a claim | A | None |
| T34.99XD | Frostbite with tissue necrosis of other sites, subsequent encounterCMS: Frostbite with tissue necrosis of other sites, subs encntr | Can lead a claim | A | None |
| T34.99XS | Frostbite with tissue necrosis of other sites, sequela | Can lead a claim | A | 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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