What is the definition for medical coding?

Medical coding is the transformation of healthcare diagnosis, procedures, medical services, and equipment into universal medical alphanumeric codes. The codes are determined by a classification system that enables the storage and retrieval of medical information for data management purposes

These codes may be processed with medical claims. For example, in the United States, codes from the _International Classification of Diseases_ (ICD), _Current Procedural Terminology (CPT)_, and _Healthcare Common Procedure Coding System_ (HCPCS) are widely used to determine payments and reimbursements between healthcare providers, including physicians, hospitals, and insurance companies.

Examples of codes for specific conditions or diseases are:

A21.9

B97.2

M72.29

I10

A38.9