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One decision drives gastroenterology revenue more than any other. Was the colonoscopy screening or diagnostic? And what happens when a screening turns diagnostic halfway through? Get the modifier wrong and the patient is billed a deductible they were told they would not owe. Our gastroenterology billing services apply modifiers PT and 33 by payer. Medicare and commercial plans do not treat them the same way.

Groups assessing gastroenterology medical billing services should ask one more thing: how does the biller work with the facility and the anesthesia group? Three claims describe one procedure. When they disagree, all three get reviewed.

Our Services

The Basics Have to Be Right

Gastroenterology billing depends on knowing the fundamentals properly. Our gastroenterology billing services give your practice a team that does, and that can handle the whole billing job.

Key Attributes of Our Medical Billing Services:

Charge Entry Claim Scrubbing Insurance and Rejection Payment Posting Patient Statements Optimize Efficiency Timely Claim Submission Reporting

Charge Entry

Your claims come to us and go into our billing software. We hold accuracy above 98% within 24 hours. We get there by automating the routine steps, handling patient data carefully, checking eligibility and chasing insurers quickly.
Claim Scrubbing

Every colonoscopy is checked for whether it stayed screening or became diagnostic. Modifier PT or 33 is applied by payer, because Medicare and commercial plans do not treat that conversion the same way.
Insurance and Rejection

GI rejections cluster where three claims describe one procedure: physician, facility and anesthesia. If they disagree on the date, the code or the modifier, all three get reviewed. We reconcile them before submission.
Payment Posting

Payments are posted against the screening benefit as well as the allowable. So if a patient was charged a deductible on a screening that should have been free, we catch it at posting rather than at complaint.
Patient Statements

Statements explain why a screening colonoscopy left a patient balance. That is the most common billing complaint in gastroenterology.
Optimize Efficiency

We audit the screening-to-diagnostic conversion rate every month. A practice converting far more often than its peers usually has a documentation habit that invites review.
Timely Claim Submission

Procedures are billed within 48 hours of the endoscopy report being signed. The facility claim is released alongside it, so the two cannot drift apart.
Reporting

Reporting separates professional and facility revenue, and shows the screening versus diagnostic mix. That mix is what drives a GI practice payer relationships.

Gastroenterology -Specific Considerations

We bill this work every day. That includes, but is not limited to:

Abdominal Angiogram
Cholecystectomy
Esophageal Stent Procedure
Appendectomy
Colonoscopy
Sigmoidoscopy
Liver Transplantation
Barium Enema
Endoscopic Retrograde
Laparoscopy
Barium Swallow
Endoscopic Retrograde
Liver Biopsy
Upper Gastrointestinal Series
Gastric Stapling (Restrictive) Surgery

Screening or diagnostic decides the whole claim

The largest single billing question in gastroenterology is why the patient came in, and it changes what everyone involved is paid and what the patient owes.

The conversion problem

A screening colonoscopy has no patient cost sharing under most plans. A diagnostic colonoscopy does. When a screening becomes therapeutic because a polyp is removed, the procedure code changes but the visit was still screening in intent, and modifiers exist to say so.

Medicare and commercial plans do not use the same modifier for this. Using the wrong one means the patient is billed a deductible they were told they would not owe, which is a complaint and a refund rather than a denial.

Surveillance is not screening

A patient returning at a shorter interval because of a personal history of polyps is on surveillance, and plans treat that differently again. The diagnosis on the claim and the interval have to agree with the history, or the claim is denied as too frequent.

Recall intervals should be set from the guideline and recorded with the reason, because three years later nobody remembers why this patient was brought back early.

Three claims, one procedure

The endoscopist, the facility and the anaesthesia provider each bill. When they disagree on the procedure, the date or the modifier, all three get reviewed. Anaesthesia for routine endoscopy is not covered by every plan for every patient, and that is checked before the appointment rather than after.

Pathology on removed tissue is a further claim. Where the practice owns the laboratory, the component rules apply and the arrangement has to stand up to scrutiny.

Office work that goes unbilled

Two things are commonly missed. The visit before the procedure, when it involves a genuine evaluation rather than scheduling. And infusion services for inflammatory bowel disease, which follow the same rules as any infusion suite: one initial service per encounter, start and stop times, and authorisation tied to the drug and the interval.

Gastroenterology Credentialing, Privileges and ASC Enrollment

Gastroenterology credentialing runs on three tracks at once. The first is ordinary payer enrollment through CAQH, PECOS and the commercial panels. The second is hospital privileges, which you need for inpatient consults and for any procedure done in the hospital. The third is the endoscopy suite. Each track has its own paperwork and its own clock.

If you scope in an ambulatory surgery center, that center enrols separately from you. The facility has its own Medicare enrollment, its own accreditation and its own payer contracts. Your privileges at that center are a separate application again. Practices that treat all of this as one job find out at the worst moment that the facility side was never finished.

We run physician enrollment, privileging and ASC enrollment together. See our medical credentialing services and ASC billing services.