Carcinoma in situ of right bronchus and lung

This code signifies the presence of abnormal, non-invasive cancer cells confined to the lining of the right bronchus or lung. These cells have not spread beyond their original location and are considered a very early stage of cancer.

Apply this code when documentation clearly indicates carcinoma in situ affecting the right lung or any part of the right bronchial tree. This diagnosis is typically made following biopsy and pathological examination.

• Ensure the documentation specifies "in situ" and the laterality as "right."
• Do not use this code if the carcinoma is invasive; instead, refer to codes for malignant neoplasms.
• Distinguish from D02.20 (unspecified bronchus and lung) and D02.22 (left bronchus and lung).