CPT code 78804 covers multi-day whole-body nuclear medicine imaging using a gamma-emitting radiopharmaceutical tracer to detect and localize tumors, inflammatory processes, or radiopharmaceutical distribution. The code specifically represents imaging performed across two or more days and may include vascular flow and blood pool imaging for cardiac assessment when performed. This modality is important nationally for staging, restaging, and whole-body assessment in oncology and certain inflammatory conditions, and it supports clinical decision-making where whole-body tracer kinetics are needed.

Key payers in the national analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines payer coverage patterns, coding and billing considerations, and where available, utilization benchmarks and common service settings.

Readers will learn the clinical context and service definition for CPT code 78804, typical sites of service, and the practical implications for billing and administrative workflows. The report summarizes national payer coverage themes, common modifier usage (where applicable), and how this code fits into multi-day nuclear medicine protocols. Data not provided in the input (including specific payer policy details, associated taxonomies, and ICD-10 pairings) are noted as unavailable in source material.