D04.9 – Carcinoma in situ of skin, unspecified
ICD-10-CM 2027 diagnosis code · In situ neoplasms
ICD-10-CM code
D04.9
- Code
D04.9(claims format:D049)- Description
- Carcinoma in situ of skin, unspecified
- 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
- D04
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
D04 – Carcinoma in situ of skin
Block D00-D09
Includes:
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Index terms for D04.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in D04
- D04.0 – Carcinoma in situ of skin of lipBillable
- D04.1 – Carcinoma in situ of skin of eyelid, including canthusHeader
- D04.2 – Carcinoma in situ of skin of ear and external auricular canalHeader
- D04.3 – Carcinoma in situ of skin of other and unspecified parts of faceHeader
- D04.4 – Carcinoma in situ of skin of scalp and neckBillable
- D04.5 – Carcinoma in situ of skin of trunkBillable
- D04.6 – Carcinoma in situ of skin of upper limb, including shoulderHeader
- D04.7 – Carcinoma in situ of skin of lower limb, including hipHeader
- D04.8 – Carcinoma in situ of skin of other sitesBillable
Frequently asked questions
What is ICD-10 code D04.9?
D04.9 is the ICD-10-CM code for carcinoma in situ of skin, unspecified, in the block D00-D09 (In situ neoplasms).
Is D04.9 a billable code?
Yes. D04.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does D04.9 belong to?
It belongs to category D04 – Carcinoma in situ of skin.
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.