Diagnosis Code


Code Information

Diagnosis Code: C18.7

Short Description: Malignant neoplasm of sigmoid colon

Long Description: Malignant neoplasm of sigmoid colon

The code C18.7 is VALID for claim submission

Code Classification:

  • Neoplasms (C00–D48)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of colon (C18)
        • C18.7 Malignant neoplasm of sigmoid colon

Code Version: 2018 ICD-10-CM


  • Adenocarcinoma of large intestine
  • Adenocarcinoma of sigmoid colon
  • Carcinoma of colon
  • Carcinoma of sigmoid colon
  • Lymphoma of colon
  • Lymphoma of intestine
  • Lymphoma of sigmoid colon
  • Malignant tumor of sigmoid colon
  • Primary malignant neoplasm of sigmoid colon

Diagnostic Related Group(s)

The code C18.7 is grouped in the following Diagnostic Related Group(s) (MS-DRG v34.0)
  • Digestive Malignancy With Mcc (374)
  • Digestive Malignancy With Cc (375)
  • Digestive Malignancy Without Cc/mcc (376)

References to Index of Diseases and Injuries

The code C18.7 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Malignant neoplasm of sigmoid (flexure)
  • Type 1 Excludes Notes:
    • malignant neoplasm of rectosigmoid junction (C19)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C18.7 Right Arrow 153.3 Mal neo sigmoid colon
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
C18 Malignant neoplasm of colon
C18.0 Malignant neoplasm of cecum
C18.1 Malignant neoplasm of appendix
C18.2 Malignant neoplasm of ascending colon
C18.3 Malignant neoplasm of hepatic flexure
C18.4 Malignant neoplasm of transverse colon
C18.5 Malignant neoplasm of splenic flexure
C18.6 Malignant neoplasm of descending colon
C18.8 Malignant neoplasm of overlapping sites of colon
C18.9 Malignant neoplasm of colon, unspecified

This page was last updated on: 1/1/2018