G0439 CPT Code: Billing Rules, Modifiers, and Denials for 2026
What Is the G0439 CPT Code? G0439 is a HCPCS Level II code rather than a CPT code. Medicare uses G0439 to bill the subsequent Annual Wellness Visit for a patient who already has an initial AWV on file under G0438. Coverage runs once per 12-month period, and Part B waives the deductible and the […]