Healthcare Common Procedure Coding System
The Healthcare Common Procedure Coding System (HCPCS) is a set of health care procedure codes that is based on the American Medical Association's Current Procedural Terminology (CPT).
There are three levels of codes:
Level I HCPCS
CPT4 - Current Procedural Terminology version 4, numeric codes for physician services.
Level II HCPCS
Alphanumeric commonly referred to as HCPCS codes and primarily include non-physician services such as ambulance services and prosthetic devices. Also represents items and supplies and non-physician services, not covered by CPT-4 codes.
Level III HCPCS
Local codes developed by state Medicaid agencies, Medicare contractors, and private insurers for use in specific programs and jurisdictions.