Coding references
Gastroenterology: the codes and the rules.
Three tables for a GI practice, each one a coder can check against the 2025 CMS and ICD-10-CM files, and the notes that come up every week.
The tables.
The notes a coder repeats.
- A screening colonoscopy that finds and removes a polyp is reported with the therapeutic code and modifier PT (Medicare) or 33 (commercial), which keeps the patient's screening cost-share at zero.
- Multiple endoscopy rules apply when more than one code from the same family is reported on the same day: the payer pays the highest in full and the others at the difference from the base code.
- Moderate sedation by the endoscopist (99152, 99153) is reported separately from the endoscopy since 2017.
Other specialties.
A receptionist that knows GI calls.
Screening forms your clinicians approve, the on-call paged with answers, and every call booked or handed back as a task.