There are a number of sets and subsets of code that a medical coder must
be familiar with, as the "International
Classification of Diseases", or ICD codes, which correspond to a patient’s injury
or sickness, "Current Procedure Terminology", or CPT codes, and "Healthcare Common Procedure Coding System", or HCPCS codes
which relate to what functions and services the healthcare provider performed on or for the patient.
These codes act as the universal language between doctors, hospitals, insurance companies,