D00.05
BillableCarcinoma in situ of hard palate
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 of cancer development in the hard palate (the roof of the mouth), where abnormal cells are present but have not yet invaded deeper tissues or spread to other areas. It represents a precancerous condition that requires monitoring and treatment to prevent progression to invasive cancer.
Coding Tips
- •Verify documentation specifies the hard palate location, as carcinoma in situ codes differ by anatomical site (D00.00-D00.09 for different palate locations)
- •Confirm this is truly 'in situ' (confined to the surface layer) and not invasive cancer, which would use different C-codes; query the provider if documentation is unclear about invasion status
Code Hierarchy
└D00Carcinoma in situ of oral cavity, esophagus and stomach└D00.0Carcinoma in situ of lip, oral cavity and pharynx└D00.05Carcinoma in situ of hard palate
└D00.05Carcinoma in situ of hard palate