CPT Code

Full definition

CPT codes cover the full range of physician services — from evaluation and management office visits (99202–99215) to surgical procedures, diagnostic imaging, laboratory services, and preventive care — and are updated annually by the American Medical Association (AMA). In the billing workflow, the physician or a coder assigns CPT codes to document the services rendered; the practice submits these codes on a claim to the payer, which uses them to determine the appropriate reimbursement based on the applicable fee schedule. CPT codes are the fundamental unit of wRVU calculation: CMS assigns a specific wRVU value to each code in the Medicare Physician Fee Schedule, and a physician's productivity is calculated by summing the wRVU values of all CPT codes they generate across patient encounters. For revenue cycle analytics, CPT code-level data is essential — denial rates segmented by CPT code reveal whether rejections are concentrated in specific procedure types, and realization rate variance by CPT code identifies whether specific services are being reimbursed below contracted rates. EHR data extraction for analytics purposes begins at the CPT level: without encounter-level CPT data, productivity, revenue cycle, and due diligence analyses lack the granularity to be actionable.