L27.8 — Dermatitis due to other substances taken internally
L27.8 is a billable, specific ICD-10-CM code for dermatitis due to other substances taken internally. It is valid for submission on a claim.
Risk adjustment
L27.8 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
L27.8 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57181Billing and Coding: Allergy Testing
- A57181Billing and Coding: Allergy Testing
- A57473Billing and Coding: Allergy Testing
- A57473Billing and Coding: Allergy Testing
How L27.8 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 L27.8.
- Dermatitis›arsenical(ingested)
- Dermatitis›due to›arsenic(ingested)
- Dermatitis›due to›alcohol›taken internally
- Dermatitis›due to›chemical NEC›taken internally
- Dermatitis›due to›ingestion, ingested substance›chemical NEC
- Dermatitis›due to›ingestion, ingested substance›specified NEC
Related codes at this level
Codes that share L27. If L27.8 is not quite right, the correct code is usually one of these.
Questions about L27.8
- Is L27.8 a billable ICD-10-CM code?
- Yes. L27.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L27.8 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Dermatitis and eczema (L20-L30).