Gastroenterology Medical Billing & Revenue Cycle ManagementGastroenterology Medical Billing & Revenue Cycle Management

What makes gastroenterology billing difficult?

A colonoscopy can start as a screening and end as a diagnostic or therapeutic procedure, and that change affects both coding and what the patient owes. Procedures in a surgery center produce a facility claim and a professional claim, while pathology and anesthesia bill separately for the same case. Every claim has to tell the same story for all of them to be paid.

What are the most common gastroenterology billing pitfalls?

• Screening vs diagnostic vs therapeutic colonoscopy. When a screening colonoscopy finds and removes a polyp, Medicare expects the procedure code with modifier PT, and commercial plans usually expect modifier 33. Coding it as purely diagnostic can turn a no-cost screening into an unexpected bill for the patient.
• ASC vs professional billing. A procedure in an ambulatory surgery center produces a facility claim from the ASC and a professional claim from the gastroenterologist. Codes, modifiers and diagnoses must agree on both, or one side is denied.
• Pathology and anesthesia coordination. Biopsies and polyps go to pathology, and many procedures involve separately billed anesthesia. Diagnoses and procedure details have to be shared with those billers so their claims match the procedure claim.
• Prior authorization. Some plans require approval for procedures such as capsule endoscopy, certain upper endoscopies or anesthesia services. Missing or mismatched approvals are denied even when the procedure was appropriate.

What causes gastroenterology claim denials?

Denials usually come from a screening procedure coded without the screening modifier, a mismatch between facility and professional claims, or a missing authorization. Frequency limits on screening and a diagnosis that doesn't support a diagnostic procedure also cause claims to be returned.

How do you handle eligibility and prior authorization for gastroenterology?

We verify coverage before the procedure, including screening benefits, frequency history and what the patient may owe if the procedure becomes diagnostic. Where a plan requires approval, we request it before the procedure date and match it to the codes and site of service that will be billed.

How are gastroenterology claims coded and submitted?

Each claim is checked for the right procedure code, the screening modifier where a screening became therapeutic, and diagnoses in the right order. Facility and professional claims are reviewed together so they agree, and procedure details are shared with pathology and anesthesia billing.

How do you handle payment posting and AR follow-up for gastroenterology?

Payments are posted by line for both facility and professional claims, so a reduced multiple-procedure payment or patient cost-sharing on a screening is visible. Unpaid and denied claims are worked by payer and filing deadline, with corrected claims sent when coding needs to change.

Do you handle credentialing and enrollment for gastroenterologists?

Yes. We help enroll gastroenterologists with Medicare and commercial plans and keep their details current. Surgery centers enroll separately as facilities, so we confirm both the physicians and the center are in network with each plan before procedures are scheduled.

How does onboarding work for a GI practice?

Most practices are onboarded within two to four weeks, depending on the size of the practice and how quickly payer and system access is set up. We work within your existing practice management system, so your physicians and surgery center staff keep the tools they use today. See all the specialties we support.

Frequently asked questions

What is modifier PT on a colonoscopy claim?

Modifier PT tells Medicare that a colorectal cancer screening became diagnostic or therapeutic, for example when a polyp was found and removed. It is added to the procedure code so the service is still treated as a screening for the patient's cost-sharing. Commercial plans usually use modifier 33 for the same situation, so we apply the modifier each payer expects.

What is the difference between a screening and a diagnostic colonoscopy?

A screening colonoscopy is done for a patient without symptoms to check for cancer or polyps. A diagnostic colonoscopy is done because of symptoms, an abnormal test or a known condition. The difference changes the codes, modifiers and often what the patient owes, so the reason for the procedure has to be clear in the record before it is billed.

How are surgery center and physician claims billed for the same procedure?

The surgery center bills a facility claim for the room, equipment and staff, and the gastroenterologist bills a professional claim for performing the procedure. Both claims should carry matching procedure codes, modifiers and diagnoses. When they disagree, one of them is often denied, so we review the two together before submission and correct any mismatch.

Why do anesthesia claims for GI procedures get denied?

Anesthesia claims are denied when the diagnosis or procedure details don't match the gastroenterologist's claim, when the plan requires approval for anesthesia, or when the documentation doesn't support it. Because anesthesia is often billed by a separate group, we share procedure details promptly so both claims agree and follow up on any anesthesia denial linked to the case.

Do you verify colonoscopy benefits before the procedure?

Yes. We check screening benefits, frequency history and what the patient may owe if the screening becomes diagnostic or therapeutic. That lets the practice explain costs before the procedure instead of after. Where the plan requires approval, we request it ahead of the procedure date and confirm it matches the services that will be billed.

Related services: eligibility and benefits verification; claim creation and submission; payment posting; denial management; provider credentialing and enrollment; accounts receivable follow-up.

Related reading: the CMS electronic prior authorization deadline; how Medicare denies duplicate lab tests.

Related specialties: laboratory and diagnostics; primary care.