L20: Atopic dermatitis
Codes under L20 (Atopic dermatitis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| L20.0 | Besnier's prurigo | ✓ |
| L20.0 | Besnier's prurigo | ✓ |
| L20.8 | Other atopic dermatitis | — |
| L20.8 | Other atopic dermatitis | — |
| L20.9 | Atopic dermatitis, unspecified | ✓ |
| L20.9 | Atopic dermatitis, unspecified | ✓ |
| L20.81 | Atopic neurodermatitis | ✓ |
| L20.81 | Atopic neurodermatitis | ✓ |
| L20.82 | Flexural eczema | ✓ |
| L20.82 | Flexural eczema | ✓ |
| L20.83 | Infantile (acute) (chronic) eczema | ✓ |
| L20.83 | Infantile (acute) (chronic) eczema | ✓ |
| L20.84 | Intrinsic (allergic) eczema | ✓ |
| L20.84 | Intrinsic (allergic) eczema | ✓ |
| L20.89 | Other atopic dermatitis | ✓ |
| L20.89 | Other atopic dermatitis | ✓ |
Frequently asked questions
What is ICD-10-CM code L20?
L20 is an ICD-10-CM category covering Atopic dermatitis. It contains 16 more specific diagnosis codes, 14 of which are billable.
Is L20 a billable code?
No — L20 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 L20.0 — Besnier's prurigo). 14 of the 16 codes under L20 are billable.
What codes fall under L20?
L20 includes L20.0, L20.0, L20.8, L20.8, L20.9, plus 11 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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