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D02.20

Billable

Carcinoma in situ of unspecified bronchus and lung

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

What This Code Means

Abnormal cell growth in the lungs or airways that has not yet become invasive cancer, affecting an unspecified bronchus or lung.

Coding Tips

  • This is a carcinoma in situ code - the cancer is confined to the surface layer and has not invaded deeper tissues
  • Use D02.21 or D02.22 if the specific side (right or left lung) is documented; only use D02.20 when laterality is unspecified

Code Hierarchy

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