Medical Coding Practice Test

The correct answer is the HCPCS coding system, which is known for comprising both Level I and Level II codes. Level I codes in HCPCS are actually the same as the Current Procedural Terminology (CPT) codes, which are used to represent medical procedures and services. Level II codes, on the other hand, consist of alphanumeric codes that cover non-physician services, supplies, and equipment not included within CPT. This dual structure makes HCPCS a comprehensive coding system that covers a broader range of healthcare items compared to just procedural coding.

In contrast, ICD (International Classification of Diseases) exclusively focuses on diagnoses rather than services and procedures. CPT is solely related to Level I codes, while DRG (Diagnosis-Related Group) codes are related to inpatient hospital services and are not part of a broader coding classification like HCPCS. Thus, HCPCS truly stands out as the system that integrates both levels of codes effectively.