CPT code 88164 denotes the manual screening of cervical or vaginal cytopathology slides by a laboratory analyst working under physician supervision, with results reported using the Bethesda System. This code captures the technical, labor-intensive component of cytologic screening and remains central to gynecologic cancer screening workflows nationwide. Accurate coding for 88164 affects laboratory billing, quality measurement, and surveillance of cervical cancer screening services.

Key payers in scope include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides national benchmarks and coding guidance patterns for these major payers where available, summarizes clinical context around cytology slide screening, and highlights common billing considerations for laboratories and pathology groups.

Readers will learn what services 88164 represents, typical sites of service, and how the code fits into cytopathology workflows. The summary also outlines what to expect in payer coverage patterns and common areas of coding complexity. Data not available in the input is noted where applicable; the focus remains on clear interpretation of the code and its role in clinical and billing processes nationally.