L20-L30 — Dermatitis and eczema
ICD-10-CM codes L20-L30 cover dermatitis and eczema, within diseases of the skin and subcutaneous tissue. The block holds 89 codes across 11 categories, of which 74 are billable and 15 are header codes that cannot be submitted on a claim.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Notes
Additional guidance from the ICD-10-CM tabular list.
- In this block the terms dermatitis and eczema are used synonymously and interchangeably.
What else to watch in L20-L30
- 55 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.
Categories in L20-L30
- L20Atopic dermatitis
- L21Seborrheic dermatitis
- L22Diaper dermatitis
- L23Allergic contact dermatitis
- L24Irritant contact dermatitis
- L25Unspecified contact dermatitis
- L26Exfoliative dermatitis
- L27Dermatitis due to substances taken internally
- L28Lichen simplex chronicus and prurigo
- L29Pruritus
- L30Other and unspecified dermatitis