D09
Non-billableCarcinoma in situ of other and unspecified sites
D09 is the ICD-10-CM code for Carcinoma in situ of other and unspecified sites. It is a non-billable category code — use a more specific child code such as D09.0 for billing.
- Status
- Header (non-billable)
- Chapter
- C00-D49
- Subcodes
- 6
- Edition
- FY2026
C00-D49 Neoplasms
What this means — in plain language
MedlinePlus · NIHWhat is cancer? Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your body forms new cells as needed, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or…
Read more about Cancer at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •melanoma in situ (D03.-)
Frequently asked questions
- What is ICD-10 code D09?
- D09 is the ICD-10-CM code for "Carcinoma in situ of other and unspecified sites". It falls under C00-D49 Neoplasms.
- Is D09 a billable code?
- No — D09 is a non-billable header code. Use a more specific child code (such as D09.0) for billing.
- What is excluded from D09?
- Excludes1 (not coded here): melanoma in situ (D03.-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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