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D02.4

Billable

Carcinoma in situ of respiratory system, unspecified

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

What This Code Means

This code describes an early stage cancer of the respiratory system (lungs, airways, or related structures) where abnormal cells are present but have not yet spread to other parts of the body. It is used when the specific location within the respiratory system is not documented.

Coding Tips

  • •Query the provider if a more specific site is documented (larynx, trachea, bronchus, lung) as D02.0-D02.3 provide greater specificity and may affect treatment planning
  • •Ensure this code is not used if invasive cancer is present; carcinoma in situ indicates pre-invasive disease only

Code Hierarchy

└D02Carcinoma in situ of middle ear and respiratory system└D02.4Carcinoma in situ of respiratory system, unspecified
└D02.4Carcinoma in situ of respiratory system, unspecified

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