ICD-10-CM › C00-D49 › C15-C26 › C codes › C18
C18
Malignant neoplasm of colon
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 10 more specific codes instead:
- 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
- C18.7 Malignant neoplasm of sigmoid colon
- C18.8 Malignant neoplasm of overlapping sites of colon
- C18.9 Malignant neoplasm of colon, unspecified
What has happened to this code
Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2012 Added to the draft code set draft Malignant neoplasm of colon
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
This code
Excludes1 - never coded here
- malignant carcinoid tumors of the colon (C7A.02-)
Inherited from the C15-C26 section Malignant neoplasms of digestive organs (C15-C26)
Excludes1 - never coded here
- Kaposi's sarcoma of gastrointestinal sites (C46.4)
Excludes2 - not included here
- gastrointestinal stromal tumors (C49.A-)