HCPCS Level II code G0307 denotes an automated complete blood count that measures hemoglobin, hematocrit, red blood cell count, and white blood cell count but does not include a platelet count. As a commonly ordered hematology panel, this test has implications for clinical decision-making, laboratory workflow, and national payer coverage policies because it represents a targeted, lower-component laboratory evaluation compared with a full CBC.

Key payers addressed in this publication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of how G0307 is defined, typical sites of service where the test is performed, and the clinical situations that commonly prompt ordering of a CBC without platelets. The report summarizes benchmark considerations for utilization and reimbursement, highlights any recent policy updates affecting laboratory testing reimbursement, and situates G0307 within common laboratory service lines for coding and billing teams.

This analysis is written for a national audience and provides practical reference material for coding specialists, laboratory managers, and compliance staff seeking clarity on the code description, service classification, and payer coverage landscape. Data not available in the input is noted where applicable.