D09 is the authoritative medical code for Carcinoma in situ of other and unspecified sites. This classification is used in medical billing and clinical recording to specify the clinical criteria for carcinoma in situ of other and unspecified sites (ICD-10-CM D09), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Carcinoma in situ of other and unspecified sites is a non-billable ICD-10-CM category code D09. A more specific billable subcode must be selected for claims submission. Includes: Bowen's disease; erythroplasia; grade III intraepithelial neoplasia; Queyrat's erythroplasia. Excludes1 (not coded here): melanoma in situ D03.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for D09 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
Frequently Asked Questions (FAQ) & Clinical Guidance
Can D09 be billed directly?
No. D09 (Carcinoma in situ of other and unspecified sites) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
What can't be coded together with D09?
Per Excludes1 instructions, D09 must not be reported with: melanoma in situ (D03.-).
Codes in This Family (11)
Official ICD-10-CM classifications in the same code family as D09, with their registry titles.
- D09.0 — Carcinoma in situ of bladder
- D09.1 — Carcinoma in situ of other and unspecified urinary organs
- D09.10 — Carcinoma in situ of unspecified urinary organ
- D09.19 — Carcinoma in situ of other urinary organs
- D09.2 — Carcinoma in situ of eye
- D09.20 — Carcinoma in situ of unspecified eye
- D09.21 — Carcinoma in situ of right eye
- D09.22 — Carcinoma in situ of left eye
- D09.3 — Carcinoma in situ of thyroid and other endocrine glands
- D09.8 — Carcinoma in situ of other specified sites
- D09.9 — Carcinoma in situ, unspecified
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code D07
Carcinoma in situ of other and unspecified genital organs
ICD Code D12
Benign neoplasm of colon, rectum, anus and anal canal
ICD Code D13
Benign neoplasm of other and ill-defined parts of digestive system
ICD Code D14
Benign neoplasm of middle ear and respiratory system