CPT code 0829T is an add-on pathology code that captures clinical staff effort to scan and digitize whole–slide images from glass microscope slides used for cytopathology diagnosis. It specifically pairs with cytopathology code 88108 (concentrated cytopathology smears) and is reported one unit per corresponding 88108 unit. Nationally, adoption of slide digitization supports telepathology workflows, remote consultations, and digital archiving, making this code relevant to laboratories modernizing pathology services.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the code’s clinical context, common billing considerations, and which payers are typically relevant to coverage and reimbursement discussions. The publication provides benchmarks where available, summarizes policy and coding guidance impacting digital pathology add-on reporting, and outlines practical service-line and site-of-service implications for hospital and independent laboratory settings.

This summary is intended for billing managers, laboratory directors, and policy analysts seeking a concise national perspective on coding for cytopathology slide digitization, associated reporting practices, and the broader clinical utility of digital whole–slide imaging.