ICD-10 · PDGM grouping
L23 Allergic contact dermatitis
All 11 codes in the L23 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
11
Can lead a claim
11
Cannot lead a claim
0
What CMS assigns to L23
All 11 codes group to MMTA - Other. None of the 11 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in L23
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 |
|---|---|---|---|---|
| L23.0 | Allergic contact dermatitis due to metals | Can lead a claim | A | None |
| L23.1 | Allergic contact dermatitis due to adhesives | Can lead a claim | A | None |
| L23.2 | Allergic contact dermatitis due to cosmetics | Can lead a claim | A | None |
| L23.3 | Allergic contact dermatitis due to drugs in contact with skinCMS: Allergic contact dermatitis due to drugs in contact w skin | Can lead a claim | A | None |
| L23.4 | Allergic contact dermatitis due to dyes | Can lead a claim | A | None |
| L23.5 | Allergic contact dermatitis due to other chemical products | Can lead a claim | A | None |
| L23.6 | Allergic contact dermatitis due to food in contact with the skinCMS: Allergic contact dermatitis due to food in contact w skin | Can lead a claim | A | None |
| L23.7 | Allergic contact dermatitis due to plants, except food | Can lead a claim | A | None |
| L23.8 Allergic contact dermatitis due to other agents | ||||
| L23.81 | Allergic contact dermatitis due to animal (cat) (dog) dander | Can lead a claim | A | None |
| L23.89 | Allergic contact dermatitis due to other agents | Can lead a claim | A | None |
| L23.9 | Allergic contact dermatitis, unspecified cause | 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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