D01.2 – Carcinoma in situ of rectum
ICD-10-CM 2027 diagnosis code · In situ neoplasms
ICD-10-CM code
D01.2
- Code
D01.2(claims format:D012)- Description
- Carcinoma in situ of rectum
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- D00-D09 In situ neoplasms
- Parent codes
- D01
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
D01 – Carcinoma in situ of other and unspecified digestive organs
Excludes1 (not coded here):
- melanoma in situ (D03.-)
Block D00-D09
Includes:
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Related codes in D01
- D01.0 – Carcinoma in situ of colonBillable
- D01.1 – Carcinoma in situ of rectosigmoid junctionBillable
- D01.3 – Carcinoma in situ of anus and anal canalBillable
- D01.4 – Carcinoma in situ of other and unspecified parts of intestineHeader
- D01.5 – Carcinoma in situ of liver, gallbladder and bile ductsBillable
- D01.7 – Carcinoma in situ of other specified digestive organsBillable
- D01.9 – Carcinoma in situ of digestive organ, unspecifiedBillable
Frequently asked questions
What is ICD-10 code D01.2?
D01.2 is the ICD-10-CM code for carcinoma in situ of rectum, in the block D00-D09 (In situ neoplasms).
Is D01.2 a billable code?
Yes. D01.2 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does D01.2 belong to?
It belongs to category D01 – Carcinoma in situ of other and unspecified digestive organs.
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.