CPT code 87505 represents a multiplex nucleic acid test that detects three to five gastrointestinal pathogens or subtypes using molecular techniques such as multiplex reverse transcription and amplified probe methods. This code covers assays that rapidly identify common enteric organisms — including Clostridium difficile, E. coli, Salmonella, Shigella, norovirus, and Giardia — and supports targeted clinical management and infection control efforts. Nationally, molecular enteric panels are important for timely diagnosis, outbreak detection, and appropriate antimicrobial stewardship.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines payer coverage considerations, common modifier usage, and clinical contexts in which CPT code 87505 is applied.

Readers will learn the clinical scope of the code, typical sites of service, and operational context for laboratories performing the assay. The report also provides benchmarking and policy-relevant context where available, including how the test fits into diagnostic pathways for acute gastroenteritis and public health surveillance. Data not available in the input is noted where applicable.