CPT code 87512 represents a nucleic acid probe test that quantifies infection with Gardnerella vaginalis, the organism commonly linked to bacterial vaginosis. This laboratory CPT code matters nationally because accurate, specific testing for Gardnerella can influence diagnosis, treatment decisions, and antimicrobial stewardship in outpatient and inpatient settings. Payers commonly considered in analyses of molecular infectious disease testing include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will learn what CPT code 87512 covers clinically, where the test is typically performed, and the context in which it is ordered. The publication reviews national benchmarking points and payer coverage themes, summarizes clinical relevance for bacterial vaginosis diagnosis, and flags areas where policy updates or coding guidance may affect billing and payment for nucleic acid probe testing. Data not available in the input is noted where applicable, and the content focuses on describing the code, expected service settings, and implications for laboratory and clinical workflows rather than recommending clinical actions.