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D02.21

Billable

Carcinoma in situ of right bronchus and lung

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

What This Code Means

This code describes abnormal cells found in the right lung or bronchus (airway) that have the potential to become cancer but have not yet invaded deeper tissues. It represents an early stage where cancer cells are present only in the surface lining and have not spread.

Coding Tips

  • •Ensure laterality is documented as right side; if bilateral or left-sided lesions are present, use separate codes D02.11 or D02.12
  • •Carcinoma in situ is a pre-malignant condition, not invasive cancer; do not confuse with invasive lung cancer codes (C34.x series)

Code Hierarchy

└D02Carcinoma in situ of middle ear and respiratory system└D02.2Carcinoma in situ of bronchus and lung└D02.21Carcinoma in situ of right bronchus and lung
└D02.21Carcinoma in situ of right bronchus and lung

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