CPT code 0106U designates the Cairn 13C–Spirulina Gastric Emptying Breath Test (GEBT), a proprietary, noninvasive, nonradioactive laboratory test that measures the rate of gastric emptying of solids in adults. As a PLA code, 0106U applies to a single manufacturer-specific test and signals a unique clinical offering in gastric motility assessment. Nationally, the code matters because it clarifies reporting for this specific breath test and supports claims submission and tracking for a diagnostic alternative to scintigraphic gastric emptying studies.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical purpose of the test, the expected service setting, and the administrative context for billing under a PLA code. The publication outlines common modifiers associated with laboratory and diagnostic services and identifies where data was unavailable in the input.

The content helps payers, providers, and policy analysts understand: the clinical context for reporting 0106U; typical sites of service where the test is performed; what a PLA designation implies for coding and claims processing; and which major payers are considered in coverage and benchmarking discussions. Data not available in the input are noted where applicable.