TL;DR: UnitedHealthcare modified its capsule endoscopy coverage policy (policy code: capsule-endoscopy), effective September 26, 2025. Billing teams should audit claims for CPT 91110, 91111, 91112, and 91299 before that date and verify diagnosis code alignment with updated medical necessity criteria.
UnitedHealthcare — the full legal entity is UnitedHealthcare — updated its Medicare Advantage medical policy for wireless capsule endoscopy. The change affects CPT 91110 (small bowel), 91111 (esophageal), 91112 (GI motility), and 91299 (unlisted GI procedure). If your practice bills capsule endoscopy billing under Medicare Advantage plans, the September 26, 2025 effective date is your hard deadline to review documentation and charge capture.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | UnitedHealthcare (UHC) |
| Policy | Capsule Endoscopy – Medicare Advantage Medical Policy |
| Policy Code | capsule-endoscopy |
| Change Type | Modified |
| Effective Date | September 26, 2025 |
| Impact Level | High |
| Specialties Affected | Gastroenterology, General Surgery, Internal Medicine |
| Key Action | Audit open authorizations and pending claims for CPT 91110, 91111, and 91112 before September 26, 2025 |
UnitedHealthcare Capsule Endoscopy Coverage Criteria and Medical Necessity Requirements 2025
There is no National Coverage Determination (NCD) for wireless capsule endoscopy under Medicare. That means UnitedHealthcare's Medicare Advantage coverage policy controls the outcome of your claims. Where Local Coverage Determinations (LCDs) or Local Coverage Articles (LCAs) exist in your state or territory, those take precedence and compliance is required.
For regions without an applicable LCD or LCA, the UHC coverage policy sets the rules directly.
Esophageal Capsule Endoscopy (CPT 91111)
Coverage for esophageal capsule endoscopy is narrow. UHC covers CPT 91111 only when both of the following conditions are met:
| # | Covered Indication |
|---|---|
| 1 | The patient has a confirmed diagnosis of portal hypertension and requires immediate evaluation for esophageal varices (ICD-10 codes I85.00, I85.01, I85.10, I85.11). |
| 2 | The ordering provider has determined that the patient's current medical condition prohibits conventional endoscopy, and the capsule procedure is performed in lieu of it. |
That's it. Any other indication for esophageal capsule endoscopy is not reasonable and necessary under this coverage policy. If you're billing CPT 91111 for anything outside portal hypertension with esophageal varices and a documented contraindication to conventional scope, expect a claim denial.
Small Bowel Capsule Endoscopy (CPT 91110)
CPT 91110 covers the esophagus through ileum with interpretation. UHC considers it medically necessary when either of two scenarios applies.
Scenario one — suspected Crohn's disease: The patient presents with an initial diagnosis of suspected Crohn's disease, and conventional diagnostic tests — specifically small bowel follow-through (SBFT) and both upper and lower endoscopy — have not provided evidence of disease. You need documented results from those prior tests before submitting for small bowel WCE. Relevant ICD-10 codes include K50.00 through K50.919 across the Crohn's disease spectrum.
Scenario two — obscure GI bleeding: The patient has documented continuous blood loss and anemia from obscure small bowel bleeding (think D50.0, D62), and at least one of the following is true:
| # | Covered Indication |
|---|---|
| 1 | Colonoscopy or endoscopy failed to identify the bleeding site. |
| 2 | Radiographic exams of the small bowel did not reveal a source. |
| 3 | Intraoperative enteroscopy is under consideration. |
The anemia must be secondary to the bleeding — D50.0 (iron deficiency anemia secondary to blood loss, chronic) is your primary supporting code here. Don't submit D50.9 (unspecified iron deficiency anemia) without documentation tying it to the bleed. That distinction matters at the medical necessity review stage.
GI Motility Monitoring (CPT 91112)
CPT 91112 covers the SmartPill® wireless gastrointestinal motility monitoring system. This is a separate device from standard capsule endoscopy — it measures pH, temperature, and pressure to evaluate GI motility rather than capturing video images.
UHC covers CPT 91112 for two FDA-approved indications: suspected delayed gastric emptying (K31.84, gastroparesis) and evaluation of colonic transit time in patients with chronic idiopathic constipation. The SmartPill study can be done in a physician office after the patient has stopped all medications that affect GI tract function. Document medication cessation in the chart before billing.
Prior Authorization
This policy does not explicitly state a blanket prior authorization requirement in the summary data available. That said, Medicare Advantage plans frequently require prior auth for these procedures, and UHC's MA plans are no exception. Check plan-specific prior authorization requirements for CPT 91110, 91111, and 91112 before scheduling. Do not assume no prior auth is needed just because the policy text doesn't mandate it universally.
UnitedHealthcare Capsule Endoscopy Exclusions and Non-Covered Indications
UHC is explicit about what it will not cover. These are hard exclusions — not gray areas.
Colorectal cancer screening. Wireless capsule endoscopy is not a covered alternative to colonoscopy for screening purposes. If a patient declines colonoscopy, that does not make CPT 91110 billable for screening. The claim will deny.
Lesions reachable by standard endoscopy. WCE is not covered to confirm pathology that upper or lower endoscopes can reach — specifically anything proximal to the ligament of Treitz or in the colon or rectum. If the lesion is in scope range, conventional endoscopy is expected.
Known obstruction or swallowing disorders. Patients with known or suspected GI obstruction, stricture, or fistula, and patients with swallowing disorders are excluded. This is also a patient safety issue, but UHC treats it as a coverage issue too.
Pacemakers and other implanted devices. Patients with cardiac pacemakers or other implanted electromedical devices are excluded due to potential interference.
Crohn's disease monitoring. WCE for ongoing monitoring of known Crohn's disease does not meet medical necessity criteria. Coverage applies only to the initial diagnostic workup when conventional tests are negative.
Any esophageal WCE outside portal hypertension with varices. The policy states this plainly: any other reason for esophageal capsule endoscopy "is not reasonable and necessary."
Coverage Indications at a Glance
| Indication | Status | Relevant CPT | Relevant ICD-10 | Notes |
|---|---|---|---|---|
| Portal hypertension with esophageal varices (conventional endoscopy contraindicated) | Covered | 91111 | I85.00, I85.01, I85.10, I85.11 | Both criteria must be met simultaneously |
| Initial suspected Crohn's disease, negative SBFT and endoscopy | Covered | 91110 | K50.00–K50.919 | Requires documentation of prior negative workup |
| Obscure small bowel bleeding with documented anemia | Covered | 91110 | D50.0, D62, K31.82, K31.811 | Must document failed prior diagnostic attempts |
| Suspected delayed gastric emptying | Covered | 91112 | K31.84 | SmartPill only; document medication cessation |
| Chronic idiopathic constipation — colonic transit | Covered | 91112 | K59.00–K59.09 | SmartPill only |
| Colorectal cancer screening | Not Covered | 91110 | — | Explicit exclusion |
| Monitoring of known Crohn's disease | Not Covered | 91110 | K50.x | Initial diagnosis only |
| Esophageal WCE for any non-variceal indication | Not Covered | 91111 | — | Hard exclusion per policy |
| WCE in patients with known GI obstruction or stricture | Not Covered | 91110, 91111 | K56.x | Safety and coverage exclusion |
| WCE in patients with cardiac pacemakers | Not Covered | 91110, 91111 | — | Implanted device exclusion |
| Unlisted GI procedure | Coverage Varies | 91299 | — | Use only when no other code applies; attach documentation |
UnitedHealthcare Capsule Endoscopy Billing Guidelines and Action Items 2025
| # | Action Item |
|---|---|
| 1 | Audit your open claims and pending authorizations for CPT 91110, 91111, and 91112 before September 26, 2025. The effective date of this modified policy is September 26, 2025. Any claim submitted on or after that date falls under the updated rules. Anything already adjudicated is not retroactively affected, but pending claims straddle the line. |
| 2 | Verify diagnosis code specificity on every WCE claim. For small bowel bleeding cases, use D50.0 (iron deficiency anemia secondary to blood loss, chronic) over D50.9 (unspecified). For Crohn's, code to the highest specificity — K50.011 with rectal bleeding versus K50.00 without complications, for example. Vague ICD-10 coding is a fast path to a medical necessity denial. |
| 3 | Document failed prior diagnostic workup before billing CPT 91110 for suspected Crohn's or obscure bleeding. Your chart must show the negative SBFT, upper endoscopy, and colonoscopy results before you order capsule endoscopy. No documentation, no coverage. Build a pre-procedure checklist that captures this. |
| 4 | For CPT 91112 (SmartPill) claims, document medication cessation in the procedure note. UHC's policy states the study should be done after the patient has stopped all medications affecting GI tract function. If that's not in the chart, the claim is vulnerable. |
| 5 | Confirm LCD/LCA applicability for your state before relying on these criteria. The UHC Medicare Advantage coverage policy defers to applicable LCDs and LCAs where they exist. Your Medicare Administrative Contractor (MAC) may have a local coverage determination that is stricter or more permissive than the UHC fallback criteria. Check the Wireless Capsule Endoscopy LCD table referenced in the policy before finalizing your internal guidelines. |
| 6 | Reserve CPT 91299 (unlisted diagnostic gastroenterology procedure) for true edge cases. This code requires supporting documentation explaining why no other code applies. If you're using 91299 routinely for capsule endoscopy cases, that's a red flag. Reimbursement for unlisted codes is inconsistent and often requires manual review. |
| 7 | If your practice is in a state without an LCD, talk to your compliance officer before the September 26, 2025 effective date. The fallback UHC criteria apply, but the interaction between Medicare Advantage policy and state-level MAC determinations can get complicated fast. Don't guess — get a written opinion. |
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for Capsule Endoscopy Under Policy Code capsule-endoscopy
Covered CPT Codes (When Selection Criteria Are Met)
| Code | Type | Description |
|---|---|---|
| 91110 | CPT | Gastrointestinal tract imaging, intraluminal (e.g., capsule endoscopy), esophagus through ileum, with interpretation and report |
| 91111 | CPT | Gastrointestinal tract imaging, intraluminal (e.g., capsule endoscopy), esophagus with interpretation and report |
| 91112 | CPT | Gastrointestinal transit and pressure measurement, stomach through colon, wireless capsule, with interpretation and report |
| 91299 | CPT | Unlisted diagnostic gastroenterology procedure |
Key ICD-10-CM Diagnosis Codes
| Code | Description |
|---|---|
| I85.00 | Esophageal varices without bleeding |
| I85.01 | Esophageal varices with bleeding |
| I85.10 | Secondary esophageal varices without bleeding |
| I85.11 | Secondary esophageal varices with bleeding |
| K50.00 | Crohn's disease of small intestine without complications |
| K50.011 | Crohn's disease of small intestine with rectal bleeding |
| K50.012 | Crohn's disease of small intestine with intestinal obstruction |
| K50.013 | Crohn's disease of small intestine with fistula |
| K50.014 | Crohn's disease of small intestine with abscess |
| K50.018 | Crohn's disease of small intestine with other complication |
| K50.019 | Crohn's disease of small intestine with unspecified complications |
| K50.10 | Crohn's disease of large intestine without complications |
| K50.111 | Crohn's disease of large intestine with rectal bleeding |
| K50.112 | Crohn's disease of large intestine with intestinal obstruction |
| K50.113 | Crohn's disease of large intestine with fistula |
| K50.114 | Crohn's disease of large intestine with abscess |
| K50.118 | Crohn's disease of large intestine with other complication |
| K50.119 | Crohn's disease of large intestine with unspecified complications |
| K50.80 | Crohn's disease of both small and large intestine without complications |
| K50.811 | Crohn's disease of both small and large intestine with rectal bleeding |
| K50.812 | Crohn's disease of both small and large intestine with intestinal obstruction |
| K50.813 | Crohn's disease of both small and large intestine with fistula |
| K50.814 | Crohn's disease of both small and large intestine with abscess |
| K50.818 | Crohn's disease of both small and large intestine with other complication |
| K50.819 | Crohn's disease of both small and large intestine with unspecified complications |
| K50.90 | Crohn's disease, unspecified, without complications |
| K50.911 | Crohn's disease, unspecified, with rectal bleeding |
| K50.912 | Crohn's disease, unspecified, with intestinal obstruction |
| K50.913 | Crohn's disease, unspecified, with fistula |
| D50.0 | Iron deficiency anemia secondary to blood loss (chronic) |
| D50.9 | Unspecified iron deficiency anemia |
| D62 | Acute posthemorrhagic anemia |
| K31.84 | Gastroparesis |
| K31.811 | Angiodysplasia of stomach and duodenum with bleeding |
| K31.82 | Dieulafoy lesion (hemorrhagic) of stomach and duodenum |
| K31.9 | Disease of stomach and duodenum, unspecified |
| C17.0 | Malignant neoplasm of duodenum |
| C17.1 | Malignant neoplasm of jejunum |
| C17.2 | Malignant neoplasm of ileum |
| C17.3 | Meckel's diverticulum, malignant |
| C17.8 | Malignant neoplasm of overlapping sites of small intestine |
| C17.9 | Malignant neoplasm of small intestine, unspecified |
| C49.A3 | Gastrointestinal stromal tumor of small intestine |
| C49.A4 | Gastrointestinal stromal tumor of large intestine |
| C78.4 | Secondary malignant neoplasm of small intestine |
| C7A.010 | Malignant carcinoid tumor of the duodenum |
| C7A.011 | Malignant carcinoid tumor of the jejunum |
| C7A.012 | Malignant carcinoid tumor of the ileum |
| C7A.019 | Malignant carcinoid tumor of the small intestine, unspecified portion |
| D01.40 | Carcinoma in situ of unspecified part of intestine |
| D01.49 | Carcinoma in situ of other parts of intestine |
| D12.0 | Benign neoplasm of cecum |
| D12.1 | Benign neoplasm of appendix |
| D12.2 | Benign neoplasm of ascending colon |
| D12.3 | Benign neoplasm of transverse colon |
| D12.4 | Benign neoplasm of descending colon |
| D12.5 | Benign neoplasm of sigmoid colon |
| D13.2 | Benign neoplasm of duodenum |
| D13.30 | Benign neoplasm of unspecified part of small intestine |
| D13.39 | Benign neoplasm of other parts of small intestine |
| D37.1 | Neoplasm of uncertain behavior of stomach |
| D37.2 | Neoplasm of uncertain behavior of small intestine |
| D37.3 | Neoplasm of uncertain behavior of appendix |
| D37.4 | Neoplasm of uncertain behavior of colon |
| D37.5 | Neoplasm of uncertain behavior of rectum |
| D3A.010 | Benign carcinoid tumor of the duodenum |
| D3A.011 | Benign carcinoid tumor of the jejunum |
| D3A.012 | Benign carcinoid tumor of the ileum |
| D3A.019 | Benign carcinoid tumor of the small intestine, unspecified portion |
| D72.89 | Other specified disorders of white blood cells |
| E16.4 | Increased secretion of gastrin |
| I77.6 | Arteritis, unspecified |
| I89.0 | Lymphedema, not elsewhere classified |
| A18.32 | Tuberculous enteritis |
| A18.39 | Retroperitoneal tuberculosis |
| A18.83 | Tuberculosis of digestive tract organs, not elsewhere classified |
The full policy lists 172 ICD-10-CM codes. The codes above represent the most clinically relevant for capsule endoscopy billing under this policy. Review the complete code list at the UHC policy source before finalizing your charge capture.
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