Chromoendoscopy - (0148) — MM 0148 | CIGNA Coverage Update

Cigna modified MM 0148 for chromoendoscopy, effective November 15, 2025. Here's what billing teams need to know.

Cigna Healthcare updated its chromoendoscopy coverage policy under MM 0148, confirming medical necessity coverage for two specific surveillance indications: Barrett's esophagus and colorectal cancer surveillance in patients with a personal history of inflammatory bowel disease. The three affected CPT codes — 44799, 45399, and 45999 — are all unlisted procedure codes, which means your documentation and billing approach for these claims requires extra care. If your practice performs chromoendoscopy for either of these indications, this policy change is directly relevant to your reimbursement.

Quick-Reference Table

Cigna Chromoendoscopy Coverage Criteria and Medical Necessity Requirements 2025

The Cigna chromoendoscopy coverage policy under MM 0148 covers chromoendoscopy as medically necessary for two indications. First, surveillance of Barrett's esophagus. Second, surveillance of colorectal cancer based on personal history of inflammatory bowel disease (IBD).

That's it. Cigna draws a tight circle around these two indications. If your patient's chromoendoscopy doesn't fit one of those two clinical scenarios, you're outside the covered criteria.

The real issue here is that all three covered codes — CPT 44799, 45399, and 45999 — are unlisted procedure codes. Cigna is explicitly confirming medical necessity for chromoendoscopy billing under these codes when the documented indication is Barrett's esophagus surveillance or IBD-related colorectal cancer surveillance. That's a meaningful clarification. Unlisted codes are routinely flagged for manual review, and having a clear coverage policy behind them strengthens your position when Cigna's reviewers pull the claim.

Prior authorization requirements for chromoendoscopy under MM 0148 are not explicitly detailed in the updated policy text. Don't assume that means no prior auth is required. Check Cigna's current prior authorization list for gastroenterology procedures. Your Cigna provider rep or your billing consultant can confirm this before you submit your first claim under the November 15, 2025 effective date.

Reimbursement for unlisted codes is determined by Cigna on a case-by-case basis. You'll typically need to submit a cover letter, operative report, and comparison to the most similar listed procedure. That process doesn't change with this policy update — but having MM 0148 to cite in your cover letter now gives you a policy anchor you didn't have before.

Cigna Chromoendoscopy Exclusions and Non-Covered Indications

The coverage policy under MM 0148 is narrow by design. Cigna limits medical necessity to Barrett's esophagus surveillance and IBD-related colorectal cancer surveillance. Any chromoendoscopy performed outside those two indications does not meet Cigna's coverage criteria under this policy.

Common scenarios that fall outside MM 0148 coverage include chromoendoscopy for routine colorectal cancer screening in average-risk patients, diagnostic workup of polyps without an IBD history, and surveillance of other GI conditions not addressed in the policy. Billing these scenarios under CPT 44799, 45399, or 45999 and citing MM 0148 will result in claim denial.

This is where your documentation workflow matters most. The diagnosis codes on your claim must clearly reflect Barrett's esophagus or inflammatory bowel disease with a personal colorectal cancer surveillance indication. A generic endoscopy diagnosis won't hold up during review.

Coverage Indications at a Glance

The source policy confirms all three CPT codes — 44799, 45399, and 45999 — as medically necessary when criteria are met. The policy does not map individual codes to individual indications. Select the code that reflects the anatomical site of the procedure and document accordingly.

Cigna Chromoendoscopy Billing Guidelines and Action Items 2025

CPT, HCPCS, and ICD-10 Codes for Chromoendoscopy Under MM 0148

Covered CPT Codes (When Medical Necessity Criteria Are Met)

These three CPT codes are confirmed as medically necessary under Cigna's MM 0148 coverage policy when used to report chromoendoscopy for the two covered indications.

Important note on these codes: All three are unlisted procedure codes. Cigna explicitly ties medical necessity to their use for reporting chromoendoscopy — not for other procedures that might also be reported under these codes. Your documentation must make clear that the service being billed is chromoendoscopy and that it was performed for a covered indication.

When submitting CPT 44799, 45399, or 45999 to Cigna, include:

• The operative or procedure report describing chromoendoscopy technique
• The clinical indication (Barrett's esophagus or IBD-related colorectal cancer surveillance)
• A comparison to the most analogous listed procedure code for pricing reference
• A cover letter citing MM 0148

Key ICD-10-CM Diagnosis Codes

The MM 0148 policy data does not include a specific ICD-10-CM code list. However, based on the two covered indications, your claims should carry diagnosis codes that accurately reflect Barrett's esophagus or inflammatory bowel disease with documented colorectal cancer surveillance rationale. Work with your coding team and physicians to select the most specific ICD-10-CM codes that reflect the documented clinical picture. If you're unsure which codes best support medical necessity for a given claim, talk to your coding consultant before the effective date.