L80-L99 — Other disorders of the skin and subcutaneous tissue
ICD-10-CM codes L80-L99 cover other disorders of the skin and subcutaneous tissue, within diseases of the skin and subcutaneous tissue. The block holds 646 codes across 19 categories, of which 551 are billable and 95 are header codes that cannot be submitted on a claim.
Risk adjustment in L80-L99
0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.
- HCC 380 Chronic Ulcer of Skin, Except Pressure, Through to Bone or Muscle
- HCC 383 Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle
- HCC 381 Pressure Ulcer of Skin with Full Thickness Skin Loss
- HCC 379 Pressure Ulcer of Skin with Necrosis Through to Muscle, Tendon, or Bone
- HCC 382 Pressure Ulcer of Skin with Partial Thickness Skin Loss
- HCC 387 Pemphigus, Pemphigoid, and Other Specified Autoimmune Skin Disorders
What else to watch in L80-L99
- 292 codes are laterality-specific. They come in left and right pairs, and the pair is mutually exclusive on a single site: coding both without a bilateral code is a contradiction a scrubber should catch before the payer does.
- 527 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.
Categories in L80-L99
- L80Vitiligo
- L81Other disorders of pigmentation
- L82Seborrheic keratosis
- L83Acanthosis nigricans
- L84Corns and callosities
- L85Other epidermal thickening
- L86Keratoderma in diseases classified elsewhere
- L87Transepidermal elimination disorders
- L88Pyoderma gangrenosum
- L89Pressure ulcer
- L90Atrophic disorders of skin
- L91Hypertrophic disorders of skin
- L92Granulomatous disorders of skin and subcutaneous tissue
- L93Lupus erythematosus
- L94Other localized connective tissue disorders
- L95Vasculitis limited to skin, not elsewhere classified
- L97Non-pressure chronic ulcer of lower limb, not elsewhere classified
- L98Other disorders of skin and subcutaneous tissue, not elsewhere classified
- L99Other disorders of skin and subcutaneous tissue in diseases classified elsewhere