ICD-10-CM 2027
ICD-10 code for Colonoscopy screening
Z12.11
Encounter for screening for malignant neoplasm of colon
✓ Billable / specificNot a principal dx
From the official ICD-10-CM alphabetic index entry “Screening (for) › colonoscopy”. Page updated September 29, 2026.
About coding Colonoscopy screening
The ICD-10-CM code for Colonoscopy screening is Z12.11 (Encounter for screening for malignant neoplasm of colon).
Within Z12.1 (encounter for screening for malignant neoplasm of intestinal tract), Z12.11 is specifically for encounter for screening for malignant neoplasm of colon. Related codes cover unspecified (Z12.10), rectum (Z12.12) and small intestine (Z12.13).
Use an additional code to identify any family history of malignant neoplasm (Z80.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Colonoscopy screening ICD-10 codes
What is the ICD-10 code for Colonoscopy screening?
- Z12.11 — Encounter for screening for malignant neoplasm of colon.
Is Z12.11 billable?
- Yes. Z12.11 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z12.11 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z12.11 a CC or MCC?
- No. Z12.11 is neither a CC nor an MCC under MS-DRG v44.0.