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C20 - Malignant neoplasm of rectum


The ICD 10 Code for Malignant neoplasm of rectum is listed as C20.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: C20
Description: Malignant neoplasm of rectum
  • Malignant neoplasm of rectal ampulla
  • Excludes1: malignant carcinoid tumor of the rectum (C7A.026)
Diagnostic Related Groups
(MS-DRG v30.0)
374 - Digestive Malignancy W Mcc
375 - Digestive Malignancy W Cc
376 - Digestive Malignancy W/o Cc/mcc
Chapter Neoplasms (C00-D49)
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 154.1 - Malignant neoplasm of rectum