L91
Header — not billableHypertrophic disorders of skin
The ICD-10 code for hypertrophic disorders of skin is L91.
L91 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- L80Vitiligo
- L81Other disorders of pigmentationnon-billable header
- L82Seborrheic keratosisnon-billable header
- L83Acanthosis nigricans
- L84Corns and callosities
- L85Other epidermal thickeningnon-billable header
- L86Keratoderma in diseases classified elsewhere
- L87Transepidermal elimination disordersnon-billable header
- L88Pyoderma gangrenosum
- L89Pressure ulcernon-billable header
- L90Atrophic disorders of skinnon-billable header
- L92Granulomatous disorders of skin and subcutaneous tissuenon-billable header
- L93Lupus erythematosusnon-billable header
- L94Other localized connective tissue disordersnon-billable header
- L95Vasculitis limited to skin, not elsewhere classifiednon-billable header
- L97Non-pressure chronic ulcer of lower limb, not elsewhere classifiednon-billable header
- L98Other disorders of skin and subcutaneous tissue, not elsewhere classifiednon-billable header
- L99Other disorders of skin and subcutaneous tissue in diseases classified elsewhere
- L91Hypertrophic disorders of skinnon-billable header