ICD-10-CM · Chapter 12 · L00–L99
L91.9
Hypertrophic disorder of the skin, unspecified
Diseases of the skin and subcutaneous tissue
Quick facts
- Code
- L91.9
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 12 — Diseases of the skin and subcutaneous tissue
- Category
- L91 — Hypertrophic disorders of skin
- Specificity
- 4 characters
How coders use this code
ICD-10-CM L91.9 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of hypertrophic disorder of the skin, unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in L91
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