Answer:
It represents medical procedures to Medicare, Medicaid, and several other third-party payers.
Explanation: Healthcare Common Procedure Coding System
The code set is divided into three levels. Level one is identical to CPT, though technically those codes, when used to bill Medicare or Medicaid, are HCPCS codes. CMS looked at the established CPT codes and decided that they didn’t need to improve upon or vary those codes, so instead they folded all of CPT into HCPCS.