C18.7
BillableMalignant neoplasm of sigmoid colon
C18.7 is the ICD-10-CM code for Malignant neoplasm of sigmoid colon. It is a billable, specific code valid for reimbursement.
C00-D49 Neoplasms
What this means — in plain language
MedlinePlus · NIHWhat is colorectal cancer? Colorectal cancer is cancer that develops in the tissues of the colon or rectum. Your colon and rectum are part of your digestive system: Your colon is the first and longest part of your large intestine. It absorbs water and some nutrients from foods. It also changes the leftover waste products into stool (poop). Your rectum is the lower part of your large intestine. It's where your body…
Read more about Colorectal Cancer at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Malignant neoplasm of sigmoid (flexure)
Excludes1 — not coded here
- •malignant neoplasm of rectosigmoid junction (C19)
Medications indicated for this condition
FDA labeling- BevacizumabVascular Endothelial Growth Factor Inhibitor [EPC]›
- Irinotecan›
- CapecitabineNucleoside Metabolic Inhibitor [EPC]›
- Levoleucovorin›
- OxaliplatinPlatinum-based Drug [EPC]›
- Irinotecan Hydrochloide›
- Adagrasib›
- CetuximabEpidermal Growth Factor Receptor Antagonist [EPC]›
- Encorafenib›
- Fruquintinib›
- IpilimumabCTLA-4-directed Blocking Antibody [EPC]›
- Nivolumab and Hyaluronidase-nvhyEndoglycosidase [EPC]›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
- What is ICD-10 code C18.7?
- C18.7 is the ICD-10-CM code for "Malignant neoplasm of sigmoid colon". It falls under C00-D49 Neoplasms.
- Is C18.7 a billable code?
- Yes — C18.7 is a billable, specific ICD-10-CM code valid for reimbursement.
- What is excluded from C18.7?
- Excludes1 (not coded here): malignant neoplasm of rectosigmoid junction (C19).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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