ICD-10 · PDGM grouping
L90 Atrophic disorders of skin
All 9 codes in the L90 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.
Codes in family
9
Can lead a claim
8
Cannot lead a claim
1
What CMS assigns to L90
8 of the 9 codes group to MMTA - Other; 1 is assigned no clinical group. None of the 9 is assigned a comorbidity subgroup. 8 of the 9 can lead a claim.
Every code in L90
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 |
|---|---|---|---|---|
| L90.0 | Lichen sclerosus et atrophicus | Can lead a claim | A | None |
| L90.1 | Anetoderma of Schweninger-Buzzi | Can lead a claim | A | None |
| L90.2 | Anetoderma of Jadassohn-Pellizzari | Can lead a claim | A | None |
| L90.3 | Atrophoderma of Pasini and Pierini | Can lead a claim | A | None |
| L90.4 | Acrodermatitis chronica atrophicans | Can lead a claim | A | None |
| L90.5 | Scar conditions and fibrosis of skin | Can lead a claim | A | None |
| L90.6 | Striae atrophicae | Can lead a claim | A | None |
| L90.8 | Other atrophic disorders of skin | Can lead a claim | A | None |
| L90.9 | Atrophic disorder of skin, unspecified | 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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