D00.00: Carcinoma in situ of oral cavity, unspecified site
D00.00 is the billable ICD-10-CM diagnosis code for Carcinoma in situ of oral cavity, unspecified site. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code D00.00?
D00.00 is the ICD-10-CM diagnosis code for Carcinoma in situ of oral cavity, unspecified site. It belongs to category D00 (Carcinoma in situ of oral cavity, esophagus and stomach).
Is D00.00 a billable code?
Yes. D00.00 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does D00.00 belong to?
D00.00 is part of ICD-10-CM category D00 — Carcinoma in situ of oral cavity, esophagus and stomach, which has 22 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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