ICD-10 · PDGM grouping
L40 Psoriasis
All 13 codes in the L40 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
13
Can lead a claim
13
Cannot lead a claim
0
What CMS assigns to L40
All 13 codes group to MMTA - Other. None of the 13 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in L40
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 |
|---|---|---|---|---|
| L40.0 | Psoriasis vulgaris | Can lead a claim | A | None |
| L40.1 | Generalized pustular psoriasis | Can lead a claim | A | None |
| L40.2 | Acrodermatitis continua | Can lead a claim | A | None |
| L40.3 | Pustulosis palmaris et plantaris | Can lead a claim | A | None |
| L40.4 | Guttate psoriasis | Can lead a claim | A | None |
| L40.5 Arthropathic psoriasis | ||||
| L40.50 | Arthropathic psoriasis, unspecified | Can lead a claim | A | None |
| L40.51 | Distal interphalangeal psoriatic arthropathy | Can lead a claim | A | None |
| L40.52 | Psoriatic arthritis mutilans | Can lead a claim | A | None |
| L40.53 | Psoriatic spondylitis | Can lead a claim | A | None |
| L40.54 | Psoriatic juvenile arthropathy | Can lead a claim | A | None |
| L40.59 | Other psoriatic arthropathy | Can lead a claim | A | None |
| L40.8 | Other psoriasis | Can lead a claim | A | None |
| L40.9 | Psoriasis, unspecified | 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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