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D04.20

Billable

Carcinoma in situ of skin of unspecified ear and external auricular canal

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

What This Code Means

Early stage squamous cell cancer (non-melanoma) found on the skin of the ear or ear canal that has not yet invaded deeper layers, when the specific ear is not specified.

Coding Tips

  • •Use this code only when laterality (right vs. left ear) is not documented; if known, use D04.21 or D04.22 instead
  • •Query the provider if ear involvement is documented but laterality is unclear

Code Hierarchy

└D04Carcinoma in situ of skin└D04.2Carcinoma in situ of skin of ear and external auricular canal└D04.20Carcinoma in situ of skin of unspecified ear and external auricular canal
└D04.20Carcinoma in situ of skin of unspecified ear and external auricular canal

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