ERCP and capsule endoscopy billing: codes, bundling, and prior auth.
ERCP and capsule endoscopy sit outside the high-volume screening-colonoscopy workflow, which is exactly why they get less attention from billing staff and more attention from payers. ERCP claims routinely carry two or three procedure codes from the same session and get priced under a rule most coders can describe but few apply correctly; capsule endoscopy claims deny on prior auth and diagnosis-pairing far more than on the code itself. This guide covers both procedure families end to end: the full CPT code set, the payment rule that decides what a multi-code ERCP claim actually reimburses, the documentation that separates a defensible 43274/43275 pair from an indefensible one, and what payers actually want to see before they'll authorize either study.
Key takeaways
- A multi-code ERCP claim paying less than the sum of each code's fee schedule amount is usually correct, not underpaid. The highest-valued procedure pays at its full rate; additional procedures in the same family have the base endoscopy value subtracted before they price — commonly described as roughly a 50% reduction on the additional code.
- 43274 and 43275 already include sphincterotomy, dilation, and guide wire passage when performed as part of that step — billing 43262 alongside either one on the same duct, same session, is a bundling error before it's ever a denial.
- Esophageal capsule endoscopy (91110/91111) needs two diagnosis codes, not one — the indication that prompted the study and the condition the imaging was evaluating — and this is one of the most consistently missed documentation requirements in the specialty.
- Prior authorization is close to universal for capsule endoscopy and common for ERCP, and the single most frequent reason a request comes back incomplete is missing proof that a standard endoscopic study was already tried, failed, or was specifically contraindicated.
ERCP CPT codes: the full family
ERCP billing runs on a base diagnostic code plus a set of therapeutic add-ons that describe what was actually done to the duct once the scope was in position. All descriptions below are paraphrased, not reproduced from the CPT Professional edition — confirm exact descriptors there before finalizing a charge master entry.
| Code | What it reports |
|---|---|
43260 | Diagnostic ERCP, including specimen collection by brushing or washing when performed |
43261 | ERCP with biopsy, single or multiple |
43262 | ERCP with sphincterotomy/papillotomy |
43263 | ERCP with pressure measurement of the sphincter of Oddi |
43264 | ERCP with removal of calculi/debris from the biliary or pancreatic duct(s) |
43265 | ERCP with destruction of calculi, any method (mechanical, electrohydraulic, or laser lithotripsy) |
43274 | ERCP with placement of a stent into the biliary or pancreatic duct, including pre/post dilation, guide wire passage, and sphincterotomy when performed — reported once per stent placed |
43275 | ERCP with removal of a foreign body or stent from the biliary or pancreatic duct(s) |
43276 | ERCP with removal and exchange of a stent, including pre/post dilation, guide wire passage, and sphincterotomy when performed — reported once per stent exchanged |
43277 | ERCP with balloon dilation of the biliary/pancreatic duct or the ampulla (sphincteroplasty), including sphincterotomy when performed — reported once per duct |
43278 | ERCP with ablation of a tumor, polyp, or other lesion, including pre/post dilation and guide wire passage when performed |
43262 (sphincterotomy) is separately reportable alongside 43261, 43263, 43264, 43265, and 43278 within the same session — but once a stent, exchange, or dilation code (43274, 43276, 43277) is billed, sphincterotomy is already built into that code's value on the same duct, and 43262 does not go out separately for that duct. The distinction that trips coders up: sphincterotomy on the biliary duct plus a separate stent placed in the pancreatic duct in the same session is two different ducts, and each can carry its own stent or dilation code where clinically documented — it isn't automatically a duplicate.
The multiple-code payment rule
ERCP is an endoscopic family under Medicare's multiple endoscopy payment structure, and this is the single most common source of "why did this pay less than expected" questions on ERCP remits. Every code in the family shares a common base — scope insertion, cannulation, and the diagnostic work — and that base value is only paid once per session, regardless of how many therapeutic steps followed it.
In practice: when two or more ERCP-family codes are billed for the same encounter, the highest-valued procedure prices at its full fee schedule rate. Each additional procedure in the family has the base endoscopy value subtracted from its own fee schedule amount before it prices — industry sources commonly describe the practical effect as the additional procedure paying at roughly 50% of its listed rate, though the actual math is a subtraction of the shared base value, not a flat percentage cut, and the specific reduction depends on each code's own relative value units. A stent removal (43275) followed by a new stent placement (43274) in the same session, for example, will show the higher-valued of the two at full rate and the other reduced — check the remittance against the fee schedule before assuming the second line was underpaid.
⚠️ This build could not open CMS's Physician Fee Schedule Look-Up Tool or the NCCI Policy Manual's multiple endoscopy chapter directly to pull the exact base-value figures used in this calculation for a specific ERCP code pair (CMS's site returned an access error to automated fetch attempts made while researching this page). The mechanism above is confirmed against CMS's own published multiple endoscopy payment policy and reported consistently across billing-industry sources; for the specific dollar reduction on a given code pair, pull the base and total RVUs for both codes from the CMS PFS Look-Up Tool for your locality and year.
Stent placement vs. removal: what the documentation needs
43274 and 43275 look like a matched pair, but they're audited differently, because one places a device and the other takes one out — and a claim reporting both on the same session, for the same duct, needs the note to make clear these were two distinct clinical steps, not one continuous exchange (which is 43276 instead).
- Document the duct (biliary or pancreatic), the indication for stenting, stent type and size, and confirmation of position under fluoroscopy.
- If pre- or post-dilation and guide wire passage were needed, they don't need separate codes — they're already valued into 43274 — but noting them supports medical necessity for the stent itself.
- Report once per stent; two stents placed at different sites in the same session can each be reported with 43274.
- Document what was removed (indwelling stent vs. a true foreign body), from which duct, and why removal was indicated at this encounter — a stent reaching its planned exchange interval reads differently on audit than an unplanned complication requiring removal.
- If a new stent replaces the one removed in the same continuous step, that's 43276 (exchange), not 43274 plus 43275 — billing the pair instead of the exchange code on a true exchange is a common upcoding flag.
The line between "removal plus separate new placement" (43275 + 43274) and "exchange" (43276) is whether the old stent's removal and the new stent's placement were clinically one continuous act or two distinct ones — for example, removing a migrated stent and placing a properly sized replacement after re-evaluating the duct is defensible as two codes if the note supports two distinct clinical decisions; routinely swapping a stent at its scheduled interval is an exchange, coded once as 43276.
Capsule endoscopy: three codes, one recurring documentation gap
| Code | Coverage area | Notable requirement |
|---|---|---|
91110 | Esophagus through the ileum (small bowel capsule study) | Dual-diagnosis requirement — see below |
91111 | Esophagus only | Dual-diagnosis requirement — see below |
91113 | Colon capsule endoscopy | Near-universal requirement that a standard colonoscopy was already attempted, incomplete, or contraindicated |
91110 and 91111 carry a dual-diagnosis requirement that's easy to miss because a single diagnosis often reads as sufficient on its face. The claim needs both the indication that prompted the study and a code reflecting the condition the capsule imaging was actually evaluating — not one code standing in for both. A patient worked up for dysphagia (indication) whose capsule study is specifically screening for Barrett's esophagus needs both concepts represented, not dysphagia alone. Example pairings, verified live against the FY2026 ICD-10-CM code set as billable for HIPAA transactions:
| Indication (why the study was ordered) | Evaluation target (what the study was assessing) |
|---|---|
K21.00 GERD with esophagitis, without bleeding | K22.70 Barrett's esophagus without dysplasia (surveillance) |
K92.2 Gastrointestinal hemorrhage, unspecified | K22.711 Barrett's esophagus with high grade dysplasia, or the relevant small-bowel finding code once confirmed |
91110 (small bowel) is billed for obscure GI bleeding, suspected Crohn's disease, and unexplained iron deficiency anemia after a negative upper and lower endoscopy far more often than 91111 (esophagus-only), which is largely reserved for Barrett's surveillance in patients who can't tolerate or don't need a full EGD. A patency capsule is frequently required before 91110 in a patient with known or suspected stricturing Crohn's disease, to confirm the capsule can transit the GI tract without retention — document that it was used, and the result, whenever stricture risk is part of the clinical picture; a retained capsule that needed retrieval is a materially different, and separately billable, complication.
91113 (colon capsule) follows a different rule entirely: it's a second-line study, not an alternative first choice. Every MAC coverage article we could confirm treats it this way — the claim and the prior authorization both need documentation that a standard colonoscopy was already attempted and incomplete, or was specifically medically contraindicated, not just that the patient or physician preferred capsule imaging. Confirmed active local coverage articles for colon capsule endoscopy, by MAC, are detailed in our gastroenterology billing and coding guide; the pattern holds across all seven MACs that publish one.
Esophageal (wireless) capsule endoscopy has its own, separate set of MAC coverage articles, distinct from the colon capsule policies:
| Article | Topic | MAC | Effective date |
|---|---|---|---|
A56727 | Wireless Capsule Endoscopy | Palmetto GBA | 10/01/2025 |
A57753 | Wireless Capsule Endoscopy | Novitas Solutions | 01/01/2022 |
A56704 | Wireless Capsule Endoscopy | First Coast Service Options | 03/10/2022 |
⚠️ Article IDs, contractor names, and effective dates above were retrieved live from the CMS Coverage Database. The full covered-diagnosis lists and documentation specifics inside each article were not independently re-verified here (CMS's article pages blocked automated retrieval during this build) — pull the specific article text for your MAC before finalizing an order-set or prior-auth checklist against it.
Prior authorization: what payers actually want
Both procedure families sit behind prior auth for the large majority of payers, and the requests that come back for more information almost always share the same gap: the clinical narrative describes why the study would help, but not what was already tried.
- 1Prior standard study and its outcome. For capsule endoscopy, the completed (or attempted and failed) colonoscopy, EGD, or push enteroscopy report, with the specific reason it didn't answer the clinical question — incomplete exam, non-diagnostic, or a documented contraindication to the standard approach.
- 2Relevant labs and duration. For obscure GI bleeding or unexplained anemia workups feeding into 91110, hemoglobin trend, iron studies, and how long the workup has been ongoing — a single low hemoglobin value rarely satisfies a payer's own necessity criteria on its own.
- 3Specific indication, not a category. "Rule out small bowel bleeding source after negative EGD and colonoscopy" gets approved faster than "GI symptoms, capsule requested" — specificity in the request itself, not just in the chart, is what a reviewer is scoring against.
- 4Emergent ERCP is the exception, not the rule. Acute cholangitis or gallstone pancreatitis can justify retrospective authorization under many payer policies, but only when the chart documents the encounter as emergent at the time of service — asserting urgency after a denial arrives doesn't retroactively qualify.
Build the prior-attempt documentation into the scheduling workflow for capsule endoscopy, not into the coding step. By the time a coder is building the claim, the failed or contraindicated standard study either exists in the chart or it doesn't — and if it doesn't, no amount of careful CPT and ICD-10 selection fixes a prior-auth request that's missing the one thing every MAC coverage article and commercial policy is actually checking for.
ERCP and capsule claims losing revenue to bundling and prior auth denials?
We'll audit a sample of your recent ERCP and capsule endoscopy claims, confirm the multiple-endoscopy pricing was applied correctly, and show what's actually recoverable.
Frequently asked questions
What's the difference between 43274 and 43275 on an ERCP claim?
43274 reports placement of a stent into the biliary or pancreatic duct, billed once per stent placed, and it already includes any pre- and post-dilation, guide wire passage, and sphincterotomy performed to get the stent in. 43275 reports the opposite direction of work: removal of a foreign body or a stent from the biliary or pancreatic duct. If a single session both removes an old stent and places a new one, both codes can be reported, but the operative note has to describe each step separately — which stent came out, from where, and the separate act of placing the new one — or a payer has grounds to treat it as one continuous exchange rather than two billable services.
Why does capsule endoscopy require two diagnosis codes instead of one?
Because the claim has to answer two separate questions: why the study was ordered, and what the capsule imaging was actually evaluating. For an esophageal capsule study (91110 or 91111), a single diagnosis often only answers one of those — a code for dysphagia explains why the patient was worked up, but not that the study was specifically evaluating for a condition like Barrett's esophagus. Payers that publish coverage articles for these codes generally expect both the qualifying indication and the condition under surveillance or investigation on the claim, and a claim carrying only one tends to read as underdocumented even when the study itself was clearly appropriate.
Does prior authorization ever get waived for ERCP or capsule endoscopy?
Rarely, and never as a default assumption. Emergent ERCP for acute cholangitis or gallstone pancreatitis is the one scenario where a payer's own policy commonly allows retrospective authorization because the delay of a prospective request isn't clinically appropriate — but that exception has to be documented as emergent at the time of service, not asserted after the fact once a claim denies. Capsule endoscopy essentially never gets a waiver; it's treated as an elective, second-line study by every payer policy we reviewed, and scheduling one without authorization already on file is a self-inflicted denial almost every time.
Verify before billing. CPT is a registered trademark of the American Medical Association; codes here are paraphrased, not reproduced from the CPT Professional edition. CPT, HCPCS and ICD-10 codes, coverage policy, and bundling edits change, including annual code-set updates. This page reflects standard industry practice and is provided for general education — it is not a substitute for your own compliance review, your current payer contracts, or the current-year code sets. Confirm requirements against your specific payer mix before submitting claims.