MCMedicalCodingSoftware
L91.9

L91.9: Hypertrophic disorder of the skin, unspecified

Billable / specific codeICD-10-CM

L91.9 is a billable, specific ICD-10-CM code for hypertrophic disorder of the skin, unspecified. It is valid for submission on a claim.

Check L91.9 with the rest of the claim: free scrubber

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

L91.9 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56658Billing and Coding: Cosmetic and Reconstructive Surgery
  • A57161Billing and Coding: Benign Skin Lesion Removal (Excludes Actinic Keratosis, and Mohs)
  • A57482Billing and Coding: Removal of Benign Skin Lesions

Alphabetic index entries that lead here

  • Hypertrophy, hypertrophic›skin
  • Disorder›skin›hypertrophic

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under L91

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.