C18.8Billable
Malignant neoplasm of overlapping sites of colon
- Chapter
- 2. Neoplasms
- Category
- C18
- Effective date
- October 1, 2026
Related codes in category C18
C18Malignant neoplasm of colonC18.0Malignant neoplasm of cecumYesC18.1Malignant neoplasm of appendixYesC18.2Malignant neoplasm of ascending colonYesC18.3Malignant neoplasm of hepatic flexureYesC18.4Malignant neoplasm of transverse colonYesC18.5Malignant neoplasm of splenic flexureYesC18.6Malignant neoplasm of descending colonYesC18.7Malignant neoplasm of sigmoid colonYesC18.9Malignant neoplasm of colon, unspecifiedYes
Frequently asked questions
What is ICD-10 code C18.8?
C18.8 is an ICD-10-CM diagnosis code for Malignant neoplasm of overlapping sites of colon.
Is C18.8 a billable code?
Yes. C18.8 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is C18.8 in?
C18.8 falls under Chapter 2: Neoplasms.
When did C18.8 become effective?
C18.8 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to C18.8?
C18.8 belongs to category C18, which includes 10 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.