CPT code 0837T is an add–on billing code for clinical staff work to scan and digitize whole–slide images from glass microscope slides to support immediate or later pathologic diagnosis. It is reported as one unit per unit of cytopathology code 88173, which covers interpretation and reporting of fine needle aspiration (FNA) specimens. The code recognizes the resource and labor required to convert glass slides into digital images used in modern pathology workflows, including telepathology and digital archiving.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The coverage and reimbursement approach for digital pathology services varies across payers; this publication summarizes payer coverage themes and benchmarks where available.

Readers will learn what clinical activity 0837T represents, typical settings where the service is performed, how the code connects to cytopathology reporting (88173), and what to expect from payer policies and benchmarking discussions. The brief also outlines common documentation considerations and the national context for digital pathology adoption. Data not available in the input will be noted where payer-specific benchmarks or policy details are absent.