ICD-10-CM 2027
ICD-10 code for cecum lesion
From the official ICD-10-CM alphabetic index entry “Lesion (s) (nontraumatic) › cecum”. Page updated September 29, 2026.
About coding cecum lesion
The ICD-10-CM code for cecum lesion is K63.9 (Disease of intestine, unspecified).
Within K63, choose K63.9 (Disease of intestine, unspecified) only when documentation doesn't support a more specific option: abscess of intestine (K63.0), perforation of intestine (nontraumatic) (K63.1), fistula of intestine (K63.2), ulcer of intestine (K63.3), Enteroptosis (K63.4), polyp of colon (K63.5) and other specified diseases of intestine (K63.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 393 (Other Digestive System Diagnoses with MCC, relative weight 1.5881), DRG 394 (Other Digestive System Diagnoses with CC, relative weight 0.9228) and DRG 395 (Other Digestive System Diagnoses without CC/MCC, relative weight 0.6382), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about cecum lesion ICD-10 codes
What is the ICD-10 code for cecum lesion?
- K63.9 — Disease of intestine, unspecified.
Is K63.9 billable?
- Yes. K63.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K63.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K63.9 as a principal diagnosis.
Is K63.9 a CC or MCC?
- No. K63.9 is neither a CC nor an MCC under MS-DRG v44.0.