K57.90 — Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- The medical record must document the medical reasonableness, necessity, and clinical frequency of the diagnostic colonoscopy or sigmoidoscopy and be available to the Contractor upon request.
- Documentation must indicate the precise areas scoped and the depth reached during colonoscopy.
- Refer to associated LCD L34614 and Medicare IOM for additional coverage and documentation guidance for colorectal cancer screening procedures.
- This billing and coding article provides guidelines that complement Local Coverage Determination L34415 for CT of the abdomen and pelvis; consult LCD L34415 for specific coverage indications, limitations, and documentation requirements.
Key Coverage Criteria
- Diagnostic colonoscopy or sigmoidoscopy is covered to directly visualize the lower gastrointestinal tract (colon, rectum, sigmoid) to detect polyps, tumors, or other intestinal lesions.
- Diagnostic colonoscopy is covered when identification of the site of pathology and/or obtaining a biopsy during the procedure is clinically indicated.
- A follow-on screening colonoscopy is covered after a positive covered blood-based biomarker noninvasive colorectal cancer (CRC) screening test per NCD 210.3, effective 2025-01-01.
- Colonoscopy/sigmoidoscopy/proctosigmoidoscopy is covered for surveillance of colonic neoplasia in patients with a history of colorectal cancer or colonic polyps.
- A follow-up procedure is covered 1 year after surgery for treatment of colorectal cancer when the patient is identified as high-risk for colon cancer and is eligible for continued screenings.
- CT abdomen is medically necessary to evaluate abdominal pain.
6 Active Policies
A56394 — Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
J05
L34614 — Colonoscopy and Sigmoidoscopy-Diagnostic
J05
A56421 — Billing and Coding: CT of the Abdomen and Pelvis
A56632 — Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
L34454 — Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Related Codes
Have a follow-up question?
Ask Verity about documentation requirements, denial risks, or coverage in your state.