CPT code 99024 documents an evaluation and management (E/M) service that occurs during the global surgical period and is related to the surgery the patient recently underwent. Nationally, this code matters because it clarifies when postoperative or related E/M services are considered part of the global surgical package rather than separately billable, which affects billing practices and audit risk across payers. Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will gain a concise understanding of the clinical and billing context for CPT code 99024, how payers typically treat postoperative E/M visits within global periods, and where to look for benchmark and policy guidance. The publication summarizes common use cases for 99024, highlights payer coverage patterns and potential documentation considerations, and outlines the national policy context affecting postoperative E/M billing. Data not available in the input for specific modifiers, associated taxonomies, and ICD-10 mappings is noted where relevant in detailed sections.