October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

T32 Corrosions classified according to extent of body surface involved

All 55 codes in the T32 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

55

Can lead a claim

0

Cannot lead a claim

55

What CMS assigns to T32

None of the 55 codes is assigned a clinical group. None of the 55 is assigned a comorbidity subgroup. None can lead a claim.

Every code in T32

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
T32.0Corrosions involving less than 10% of body surfaceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.1 Corrosions involving 10-19% of body surface
T32.10Corrosions involving 10-19% of body surface with 0% to 9% third degree corrosionCMS: Corros 10-19% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.11Corrosions involving 10-19% of body surface with 10-19% third degree corrosionCMS: Corros 10-19% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.2 Corrosions involving 20-29% of body surface
T32.20Corrosions involving 20-29% of body surface with 0% to 9% third degree corrosionCMS: Corros 20-29% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.21Corrosions involving 20-29% of body surface with 10-19% third degree corrosionCMS: Corros 20-29% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.22Corrosions involving 20-29% of body surface with 20-29% third degree corrosionCMS: Corros 20-29% of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.3 Corrosions involving 30-39% of body surface
T32.30Corrosions involving 30-39% of body surface with 0% to 9% third degree corrosionCMS: Corros 30-39% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.31Corrosions involving 30-39% of body surface with 10-19% third degree corrosionCMS: Corros 30-39% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.32Corrosions involving 30-39% of body surface with 20-29% third degree corrosionCMS: Corros 30-39% of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.33Corrosions involving 30-39% of body surface with 30-39% third degree corrosionCMS: Corros 30-39% of body surface w 30-39% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.4 Corrosions involving 40-49% of body surface
T32.40Corrosions involving 40-49% of body surface with 0% to 9% third degree corrosionCMS: Corros 40-49% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.41Corrosions involving 40-49% of body surface with 10-19% third degree corrosionCMS: Corros 40-49% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.42Corrosions involving 40-49% of body surface with 20-29% third degree corrosionCMS: Corros 40-49% of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.43Corrosions involving 40-49% of body surface with 30-39% third degree corrosionCMS: Corros 40-49% of body surface w 30-39% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.44Corrosions involving 40-49% of body surface with 40-49% third degree corrosionCMS: Corros 40-49% of body surface w 40-49% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.5 Corrosions involving 50-59% of body surface
T32.50Corrosions involving 50-59% of body surface with 0% to 9% third degree corrosionCMS: Corros 50-59% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.51Corrosions involving 50-59% of body surface with 10-19% third degree corrosionCMS: Corros 50-59% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.52Corrosions involving 50-59% of body surface with 20-29% third degree corrosionCMS: Corros 50-59% of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.53Corrosions involving 50-59% of body surface with 30-39% third degree corrosionCMS: Corros 50-59% of body surface w 30-39% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.54Corrosions involving 50-59% of body surface with 40-49% third degree corrosionCMS: Corros 50-59% of body surface w 40-49% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.55Corrosions involving 50-59% of body surface with 50-59% third degree corrosionCMS: Corros 50-59% of body surface w 50-59% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.6 Corrosions involving 60-69% of body surface
T32.60Corrosions involving 60-69% of body surface with 0% to 9% third degree corrosionCMS: Corros 60-69% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.61Corrosions involving 60-69% of body surface with 10-19% third degree corrosionCMS: Corros 60-69% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.62Corrosions involving 60-69% of body surface with 20-29% third degree corrosionCMS: Corros 60-69% of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.63Corrosions involving 60-69% of body surface with 30-39% third degree corrosionCMS: Corros 60-69% of body surface w 30-39% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.64Corrosions involving 60-69% of body surface with 40-49% third degree corrosionCMS: Corros 60-69% of body surface w 40-49% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.65Corrosions involving 60-69% of body surface with 50-59% third degree corrosionCMS: Corros 60-69% of body surface w 50-59% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.66Corrosions involving 60-69% of body surface with 60-69% third degree corrosionCMS: Corros 60-69% of body surface w 60-69% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.7 Corrosions involving 70-79% of body surface
T32.70Corrosions involving 70-79% of body surface with 0% to 9% third degree corrosionCMS: Corros 70-79% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.71Corrosions involving 70-79% of body surface with 10-19% third degree corrosionCMS: Corros 70-79% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.72Corrosions involving 70-79% of body surface with 20-29% third degree corrosionCMS: Corros 70-79% of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.73Corrosions involving 70-79% of body surface with 30-39% third degree corrosionCMS: Corros 70-79% of body surface w 30-39% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.74Corrosions involving 70-79% of body surface with 40-49% third degree corrosionCMS: Corros 70-79% of body surface w 40-49% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.75Corrosions involving 70-79% of body surface with 50-59% third degree corrosionCMS: Corros 70-79% of body surface w 50-59% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.76Corrosions involving 70-79% of body surface with 60-69% third degree corrosionCMS: Corros 70-79% of body surface w 60-69% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.77Corrosions involving 70-79% of body surface with 70-79% third degree corrosionCMS: Corros 70-79% of body surface w 70-79% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.8 Corrosions involving 80-89% of body surface
T32.80Corrosions involving 80-89% of body surface with 0% to 9% third degree corrosionCMS: Corros 80-89% of body surface w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.81Corrosions involving 80-89% of body surface with 10-19% third degree corrosionCMS: Corros 80-89% of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.82Corrosions involving 80-89% of body surface with 20-29% third degree corrosionCMS: Corros 80-89% of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.83Corrosions involving 80-89% of body surface with 30-39% third degree corrosionCMS: Corros 80-89% of body surface w 30-39% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.84Corrosions involving 80-89% of body surface with 40-49% third degree corrosionCMS: Corros 80-89% of body surface w 40-49% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.85Corrosions involving 80-89% of body surface with 50-59% third degree corrosionCMS: Corros 80-89% of body surface w 50-59% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.86Corrosions involving 80-89% of body surface with 60-69% third degree corrosionCMS: Corros 80-89% of body surface w 60-69% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.87Corrosions involving 80-89% of body surface with 70-79% third degree corrosionCMS: Corros 80-89% of body surface w 70-79% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.88Corrosions involving 80-89% of body surface with 80-89% third degree corrosionCMS: Corros 80-89% of body surface w 80-89% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.9 Corrosions involving 90% or more of body surface
T32.90Corrosions involving 90% or more of body surface with 0% to 9% third degree corrosionCMS: Corros 90%/more of body surfc w 0% to 9% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.91Corrosions involving 90% or more of body surface with 10-19% third degree corrosionCMS: Corros 90%/more of body surface w 10-19% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.92Corrosions involving 90% or more of body surface with 20-29% third degree corrosionCMS: Corros 90%/more of body surface w 20-29% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.93Corrosions involving 90% or more of body surface with 30-39% third degree corrosionCMS: Corros 90%/more of body surface w 30-39% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.94Corrosions involving 90% or more of body surface with 40-49% third degree corrosionCMS: Corros 90%/more of body surface w 40-49% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.95Corrosions involving 90% or more of body surface with 50-59% third degree corrosionCMS: Corros 90%/more of body surface w 50-59% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.96Corrosions involving 90% or more of body surface with 60-69% third degree corrosionCMS: Corros 90%/more of body surface w 60-69% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.97Corrosions involving 90% or more of body surface with 70-79% third degree corrosionCMS: Corros 90%/more of body surface w 70-79% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.98Corrosions involving 90% or more of body surface with 80-89% third degree corrosionCMS: Corros 90%/more of body surface w 80-89% third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T32.99Corrosions involving 90% or more of body surface with 90% or more third degree corrosionCMS: Corros 90%/more of body surfc w 90%/more third degree corrosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

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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