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D48.5

Billable

Neoplasm of uncertain behavior of skin

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

What This Code Means

A growth in the skin that is not clearly cancer but has uncertain behavior, such as certain types of skin lesions that cannot be definitively classified.

Coding Tips

  • This code is for skin neoplasms of uncertain behavior; ensure melanoma and other clearly malignant skin cancers are not miscoded here
  • Dermatology reports should document the uncertain behavior classification and rule out malignancy

Excludes 1 — Do NOT code together

  • neoplasm of uncertain behavior of anus NOS (D37.8)
  • neoplasm of uncertain behavior of skin of genital organs (D39.8, D40.8)
  • neoplasm of uncertain behavior of vermilion border of lip (D37.0)

Code Hierarchy

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