C18.9 MALIGNANT NEOPLASM OF COLON, UNSPECIFIED

Code Information

Diagnosis Code: C18.9

Short Description: Malignant neoplasm of colon, unspecified

Long Description: Malignant neoplasm of colon, unspecified

Code Classification:

  • Neoplasms (C00–D48)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of colon (C18)
        • C18.9 Malignant neoplasm of colon, unspecified

Code Version: 2017 ICD-10-CM

Diagnostic Related Group(s)

The code C18.9 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 C18.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Malignant neoplasm of large intestine NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C18.9 Right Arrow 153.9 Malignant neo colon NOS
This ICD-10 to ICD-9 data is based on the 2015 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

No. ICD-10 Code ICD-10 Description
1 C18 Malignant neoplasm of colon
2 C18.0 Malignant neoplasm of cecum
3 C18.1 Malignant neoplasm of appendix
4 C18.2 Malignant neoplasm of ascending colon
5 C18.3 Malignant neoplasm of hepatic flexure
6 C18.4 Malignant neoplasm of transverse colon
7 C18.5 Malignant neoplasm of splenic flexure
8 C18.6 Malignant neoplasm of descending colon
9 C18.7 Malignant neoplasm of sigmoid colon
10 C18.8 Malignant neoplasm of overlapping sites of colon



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