91020 Gastric motility studies
Also known as: gastric manometry, gastric motility test, stomach function study
Gastric motility studies to evaluate the muscular function and emptying capacity of the stomach.
In Plain Language
test of stomach muscle strength; measurement of stomach function
Clinical Context
Diagnostic study to evaluate gastroparesis, gastric dysrhythmias, or postoperative gastric dysfunction. Measures pressure waves and coordinated muscle contractions.
RVU Breakdown
| Work RVU | 1.40 |
| Total RVU | 1.40 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Medicine section codes cover a wide range of non-surgical services. This code has a 0-day global period, meaning pre- and post-operative E&M visits are billable separately on the same day. Documentation should include the clinical indication, procedure details, interpretation (if applicable), and any patient-specific findings.
How This Code Compares
With a work RVU of 1.40, this code ranks in the 67th percentile among Medicine codes — 1.8x the median (0.78). The highest wRVU in this category is 23.92.
Specialties
Frequently Asked Questions
What is CPT code 91020?
CPT 91020 (Gastric motility studies) is a Medicine code. Gastric motility studies to evaluate the muscular function and emptying capacity of the stomach.
Who uses CPT code 91020?
CPT 91020 is used by Gastroenterology, Internal Medicine, Surgery. Diagnostic study to evaluate gastroparesis, gastric dysrhythmias, or postoperative gastric dysfunction. Measures pressure waves and coordinated muscle contractions.
When is CPT 91020 used?
Diagnostic study to evaluate gastroparesis, gastric dysrhythmias, or postoperative gastric dysfunction. Measures pressure waves and coordinated muscle contractions.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.