What type of coding includes both procedural and diagnostic codes?

CPT coding, or Current Procedural Terminology coding, includes both procedural and diagnostic codes, making it essential for accurately communicating information about the services provided by healthcare professionals. CPT codes are used to report various medical, surgical, and diagnostic procedures and services, facilitating the billing process and ensuring that healthcare providers receive appropriate reimbursement for the care they deliver.

CPT coding encompasses different sections, among which the evaluation and management codes can include diagnostic elements related to the patient's condition, while the surgery codes clearly outline the procedures performed. This dual functionality allows for a comprehensive overview of a patient's treatment plan.

In contrast, ICD coding specifically focuses on diagnosis codes that describe medical conditions and diseases. HCPCS coding primarily involves codes for various healthcare services, supplies, and equipment, though it does incorporate some procedural elements relevant to Medicare. Modifier coding typically provides additional information about a service or procedure but does not encompass the complete coding for both diagnostics and procedures. Therefore, the correct answer identifies CPT coding as the coding system that includes both types of codes.