L59.0 — Erythema ab igne [dermatitis ab igne]
L59.0 is a billable, specific ICD-10-CM code for erythema ab igne [dermatitis ab igne]. It is valid for submission on a claim.
Other codes that can never be billed with L59.0
These codes carry an Excludes1 note pointing at L59.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L59.0 alone.
Risk adjustment
L59.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
L59.0 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56459Billing and Coding: Debridement Services
- A57181Billing and Coding: Allergy Testing
How L59.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L59.0.
- Dermatitis›ab igne
- Dermatitis›calorica
- Dermatitis›combustionis
- Dermatitis›heat
- Erythema, erythematous›ab igne
- Heat›dermatitis or eczema
- Dermatitis›due to›hot›weather or places
Related codes at this level
Codes that share L59. If L59.0 is not quite right, the correct code is usually one of these.
Questions about L59.0
- Is L59.0 a billable ICD-10-CM code?
- Yes. L59.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L59.0 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Radiation-related disorders of the skin and subcutaneous tissue (L55-L59).