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

D03 Melanoma in situ

All 23 codes in the D03 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

23

Can lead a claim

17

Cannot lead a claim

6

What CMS assigns to D03

17 of the 23 codes group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases; 6 are assigned no clinical group. None of the 23 is assigned a comorbidity subgroup. 17 of the 23 can lead a claim.

Every code in D03

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
D03.0Melanoma in situ of lipCan lead a claimKNone
D03.1 Melanoma in situ of eyelid, including canthus
D03.10Melanoma in situ of unspecified eyelid, including canthusCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
D03.11 Melanoma in situ of right eyelid, including canthus
D03.111Melanoma in situ of right upper eyelid, including canthusCan lead a claimKNone
D03.112Melanoma in situ of right lower eyelid, including canthusCan lead a claimKNone
D03.12 Melanoma in situ of left eyelid, including canthus
D03.121Melanoma in situ of left upper eyelid, including canthusCan lead a claimKNone
D03.122Melanoma in situ of left lower eyelid, including canthusCan lead a claimKNone
D03.2 Melanoma in situ of ear and external auricular canal
D03.20Melanoma in situ of unspecified ear and external auricular canalCMS: Melanoma in situ of unsp ear and external auricular canalCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
D03.21Melanoma in situ of right ear and external auricular canalCan lead a claimKNone
D03.22Melanoma in situ of left ear and external auricular canalCan lead a claimKNone
D03.3 Melanoma in situ of other and unspecified parts of face
D03.30Melanoma in situ of unspecified part of faceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
D03.39Melanoma in situ of other parts of faceCan lead a claimKNone
D03.4Melanoma in situ of scalp and neckCan lead a claimKNone
D03.5 Melanoma in situ of trunk
D03.51Melanoma in situ of anal skinCan lead a claimKNone
D03.52Melanoma in situ of breast (skin) (soft tissue)Can lead a claimKNone
D03.59Melanoma in situ of other part of trunkCan lead a claimKNone
D03.6 Melanoma in situ of upper limb, including shoulder
D03.60Melanoma in situ of unspecified upper limb, including shoulderCMS: Melanoma in situ of unsp upper limb, including shoulderCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
D03.61Melanoma in situ of right upper limb, including shoulderCan lead a claimKNone
D03.62Melanoma in situ of left upper limb, including shoulderCan lead a claimKNone
D03.7 Melanoma in situ of lower limb, including hip
D03.70Melanoma in situ of unspecified lower limb, including hipCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
D03.71Melanoma in situ of right lower limb, including hipCan lead a claimKNone
D03.72Melanoma in situ of left lower limb, including hipCan lead a claimKNone
D03.8Melanoma in situ of other sitesCan lead a claimKNone
D03.9Melanoma in situ, unspecifiedCannot 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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