L83 — Acanthosis nigricans
L83 is a billable, specific ICD-10-CM code for acanthosis nigricans. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Confluent and reticulated papillomatosis
Risk adjustment
L83 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
L83 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56346Billing and Coding: Removal of Benign and Malignant Skin Lesions
- A56394Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
- A57342Billing and Coding: Diagnostic and Therapeutic Colonoscopy
How L83 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 L83.
- Acanthosis(acquired) (nigricans)
- Gougerot-Carteaud disease or syndrome(confluent reticulate papillomatosis)
- Keratosis›nigricans
- Papillomatosis›confluent and reticulated
Questions about L83
- Is L83 a billable ICD-10-CM code?
- Yes. L83 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L83 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Other disorders of the skin and subcutaneous tissue (L80-L99).