Summary & Overview
CPT 91020: Gastric Manometry for Gastric Motility Assessment
CPT code 91020 represents gastric manometry — use of a manometer to measure stomach muscle pressure and peristaltic activity to evaluate gastric motility. Nationally, gastric motility testing is important for diagnosing conditions such as gastroparesis, functional dyspepsia, and other neuromuscular disorders of the stomach; accurate coding ensures appropriate clinical documentation and payer adjudication.
Key payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what CPT code 91020 covers, the typical clinical contexts for use, common sites of service, and payer considerations. The publication outlines benchmark guidance where available, discusses relevant policy updates affecting coverage and reimbursement, and places the procedure in clinical context for gastroenterology and motility specialists.
The content is designed for billing managers, clinicians, and policy analysts seeking a national view of how CPT code 91020 is applied and reimbursed across major payers, and what documentation and clinical elements typically support claims.
Billing Code Overview
CPT code 91020 describes use of a manometer to analyze stomach muscle pressure and movement to assess gastric motility and peristaltic function. The procedure evaluates intragastric pressure and coordinated muscular contractions to diagnose motility disorders and guide clinical management.
Service Type: Gastrointestinal motility testing using gastric manometry
Typical Site of Service: Hospital outpatient department or specialized gastroenterology clinic (motility lab)
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A patient presents to a gastroenterology clinic with progressive dyspepsia, early satiety, nausea, postprandial vomiting, and weight loss. Previous evaluation including laboratory studies and abdominal imaging is non-diagnostic. The gastroenterologist orders gastric manometry to evaluate gastric motility and peristaltic activity. The patient arrives fasting to an outpatient endoscopy or motility laboratory. After informed consent, a transnasal or transoral catheter with a manometry sensor array is placed into the stomach under local anesthesia and brief topical vasoconstrictor as needed. Baseline pressure recordings are obtained at rest and during standardized provocation (liquid/solid meal challenge or pharmacologic provocation) to measure gastric contractile patterns, amplitude, frequency, and propagation. Data are reviewed in real time and later interpreted by the performing physician. Typical sites of service include an outpatient motility laboratory, ambulatory surgery center, or hospital outpatient department. The procedure supports diagnosis of gastroparesis, functional dyspepsia with impaired gastric emptying, pseudo-obstruction, or evaluation after anti-reflux or bariatric surgery when motility disturbance is suspected.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing physician or interpreting clinician reports only the professional interpretation of the manometry tracing separate from technical components |