Does K91.31 require prior authorization?

No, K91.31 does not require prior authorization (high confidence). Covered without prior authorization.

`K91.31`, Postprocedural partial intestinal obstruction

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

This billing and coding guidance complements Local Coverage Determination L34434; follow LCD L34434 for clinical coverage criteria and required documentation for claims.
All services billed with unlisted procedure codes must include sufficient medical records and supporting documentation to allow development and medical review.
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.

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.
This article does not specify clinical indications; refer to LCD L36427 for covered indications for wireless capsule endoscopy.

A56394, Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic

WPS-J5-L34614, Colonoscopy and Sigmoidoscopy-Diagnostic

WPS-J8-L34614, Colonoscopy and Sigmoidoscopy-Diagnostic

FIRST_COAST-L33583, Diagnostic and Therapeutic Esophagogastroduodenoscopy

Ask Backwork about documentation requirements, denial risks, or coverage in your state.