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C20

✓ Billable

Malignant neoplasm of rectum

Neoplasms (C00-D49)

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Also Known As

Malignant neoplasm of rectal ampulla

❌ Excludes1

direct

Cannot be coded with C20

  • • malignant carcinoid tumor of the rectum (C7A.026)

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Code Information

CodeC20
BillableYes
CategoryNeoplasms (C00-D49)
Excludes11 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)