D00 – Carcinoma in situ of oral cavity, esophagus and stomach
ICD-10-CM 2027 diagnosis code · In situ neoplasms
ICD-10-CM code
D00
- Code
D00(claims format:D00)- Description
- Carcinoma in situ of oral cavity, esophagus and stomach
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- D00-D09 In situ neoplasms
Billable codes under D00
D00 is a header code and cannot be used on claims. Choose the most specific code:
- D00.0 – Carcinoma in situ of lip, oral cavity and pharynxHeader (more codes below)
- D00.1 – Carcinoma in situ of esophagusBillable
- D00.2 – Carcinoma in situ of stomachBillable
Notes for D00
Excludes1 (not coded here):
- melanoma in situ (D03.-)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block D00-D09
Includes:
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Frequently asked questions
What is ICD-10 code D00?
D00 is the ICD-10-CM code for carcinoma in situ of oral cavity, esophagus and stomach, in the block D00-D09 (In situ neoplasms).
Is D00 a billable code?
No. D00 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.