L23: Allergic contact dermatitis
Codes under L23 (Allergic contact dermatitis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| L23.0 | Allergic contact dermatitis due to metals | ✓ |
| L23.0 | Allergic contact dermatitis due to metals | ✓ |
| L23.1 | Allergic contact dermatitis due to adhesives | ✓ |
| L23.1 | Allergic contact dermatitis due to adhesives | ✓ |
| L23.2 | Allergic contact dermatitis due to cosmetics | ✓ |
| L23.2 | Allergic contact dermatitis due to cosmetics | ✓ |
| L23.3 | Allergic contact dermatitis due to drugs in contact with skin | ✓ |
| L23.3 | Allergic contact dermatitis due to drugs in contact with skin | ✓ |
| L23.4 | Allergic contact dermatitis due to dyes | ✓ |
| L23.4 | Allergic contact dermatitis due to dyes | ✓ |
| L23.5 | Allergic contact dermatitis due to other chemical products | ✓ |
| L23.5 | Allergic contact dermatitis due to other chemical products | ✓ |
| L23.6 | Allergic contact dermatitis due to food in contact with the skin | ✓ |
| L23.6 | Allergic contact dermatitis due to food in contact with the skin | ✓ |
| L23.7 | Allergic contact dermatitis due to plants, except food | ✓ |
| L23.7 | Allergic contact dermatitis due to plants, except food | ✓ |
| L23.8 | Allergic contact dermatitis due to other agents | — |
| L23.8 | Allergic contact dermatitis due to other agents | — |
| L23.9 | Allergic contact dermatitis, unspecified cause | ✓ |
| L23.9 | Allergic contact dermatitis, unspecified cause | ✓ |
| L23.81 | Allergic contact dermatitis due to animal (cat) (dog) dander | ✓ |
| L23.81 | Allergic contact dermatitis due to animal (cat) (dog) dander | ✓ |
| L23.89 | Allergic contact dermatitis due to other agents | ✓ |
| L23.89 | Allergic contact dermatitis due to other agents | ✓ |
Frequently asked questions
What is ICD-10-CM code L23?
L23 is an ICD-10-CM category covering Allergic contact dermatitis. It contains 24 more specific diagnosis codes, 22 of which are billable.
Is L23 a billable code?
No — L23 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example L23.0 — Allergic contact dermatitis due to metals). 22 of the 24 codes under L23 are billable.
What codes fall under L23?
L23 includes L23.0, L23.0, L23.1, L23.1, L23.2, plus 19 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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