CPT code 87177 covers the laboratory technical procedure to concentrate and microscopically evaluate specimens (commonly stool) for parasites and parasite eggs (ova). This code identifies a specific parasitology testing step that plays a role in diagnosing gastrointestinal parasitic infections and guiding clinical management. Nationally, accurate coding for parasitology concentration techniques supports laboratory reporting, appropriate payment, and epidemiologic surveillance of parasitic disease.

Key payers in the coverage landscape include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Coverage policies, medical necessity criteria, and payment rates for parasitology testing can vary across these payers.

Readers will learn the clinical context of 87177, typical sites where the service is provided, and the practical implications of correct code use. The publication presents benchmarks and summary policy perspectives relevant to laboratories and providers, highlights common modifier usage where available, and outlines where to look for payer-specific coverage rules. Data not available in the input is noted where applicable. This resource serves laboratory managers, billing professionals, and policy analysts seeking a concise national overview of CPT code 87177.