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Q82.2

Billable

Congenital cutaneous mastocytosis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A congenital condition where mast cells accumulate abnormally in the skin, causing brown spots or lesions that are present from birth.

Coding Tips

  • •Document the extent and distribution of skin involvement to support medical necessity
  • •Distinguish from systemic mastocytosis which would require a different code

Excludes 1 — Do NOT code together

  • cutaneous mastocytosis NOS (D47.01)
  • diffuse cutaneous mastocytosis (with onset after newborn period) (D47.01)
  • malignant mastocytosis (C96.2-)
  • systemic mastocytosis (D47.02)
  • urticaria pigmentosa (non-congenital) (with onset after newborn period) (D47.01)

Code Hierarchy

└Q82Other congenital malformations of skin└Q82.2Congenital cutaneous mastocytosis
└Q82.2Congenital cutaneous mastocytosis

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