ICD-10-CM · Chapter 12 · L00-L99
L23 Allergic contact dermatitis
Excludes 1 (cannot be coded together)
- allergy NOS (T78.40)
- contact dermatitis NOS (L25.9)
- dermatitis NOS (L30.9)
Excludes 2 (not included here)
- dermatitis due to substances taken internally (L27.-)
- dermatitis of eyelid (H01.1-)
- diaper dermatitis (L22)
- eczema of external ear (H60.5-)
- irritant contact dermatitis (L24.-)
- perioral dermatitis (L71.0)
- radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| L23..0 | Allergic contact dermatitis due to metals | Yes |
| L23..1 | Allergic contact dermatitis due to adhesives | Yes |
| L23..2 | Allergic contact dermatitis due to cosmetics | Yes |
| L23..3 | Allergic contact dermatitis due to drugs in contact with skin | Yes |
| L23..4 | Allergic contact dermatitis due to dyes | Yes |
| L23..5 | Allergic contact dermatitis due to other chemical products | Yes |
| L23..6 | Allergic contact dermatitis due to food in contact with the skin | Yes |
| L23..7 | Allergic contact dermatitis due to plants, except food | Yes |
| L23..8 | Allergic contact dermatitis due to other agents | No |
| L23..81 | Allergic contact dermatitis due to animal (cat) (dog) dander | Yes |
| L23..89 | Allergic contact dermatitis due to other agents | Yes |
| L23..9 | Allergic contact dermatitis, unspecified cause | Yes |
Last reviewed: September 2026