CPT code 99493 represents psychiatric collaborative care management (CoCM) for patients receiving behavioral health treatment in coordination with their primary care provider. It is used to report the first 60 minutes of CoCM delivered in a month after the initial month of care. This code matters nationally as collaborative care models expand across primary care to address mental health access, integrate psychiatric expertise into general medical settings, and support population-based management of behavioral health conditions. Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will learn how CPT code 99493 is defined and applied in clinical workflows, the typical sites of service where it is billed, which payers recognize and reimburse the service, and what operational benchmarks and policy considerations are relevant to practices implementing CoCM. The publication also outlines documentation and service elements tied to the code and highlights areas where payer policies and national guidance commonly affect billing and program design. Data not available in the input: specific payer policy details, associated taxonomies, and ICD-10 diagnoses.