D05
Non-billableCarcinoma in situ of breast
D05 is the ICD-10-CM code for Carcinoma in situ of breast. It is a non-billable category code — use a more specific child code such as D05.0 for billing.
- Status
- Header (non-billable)
- Chapter
- C00-D49
- Subcodes
- 4
- Edition
- FY2026
C00-D49 Neoplasms
What this means — in plain language
MedlinePlus · NIHWhat is breast cancer? Breast cancer is a cancer that starts in breast tissue. It happens when cells in the breast change and grow out of control. 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. Sometimes the cancer does not spread any further. This is called "in situ." If the cancer spreads outside the breast, the cancer is…
Read more about Breast Cancer at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
Excludes2 — not included here
- •malignant neoplasm of breast (C50.-)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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