Health-care insurance codes are typically listed on a health plan's "Explanation of Benefits" section, according to About.com. Certain types of health-care insurance codes are listed on the Medicare website and the website of the World Health Organization, or WHO.
There are three different coding systems used by health plans, health-care providers and medical billing companies, as stated by About.com. Doctors use Current Procedural Terminology, or CPT, codes to describe their services. A CPT code must be listed on the insurance claim form in order for the physician to get paid. These codes are created by the American Medical Association. Lists of CPT codes are available to medical billers for a fee but are not available to the general public. Physician’s offices sometimes provide patients with lists of these type of codes.
Medicare uses the Healthcare Common Procedure Coding System, or HDPCS. As of 2015, downloadable lists of Medicare diagnosis and procedure codes are available on the Centers for Medicare & Medicaid website.
International Classification of Diseases, or ICD, codes were created by the World Health Organization. These diagnosis codes are often used along with CPT codes. A complete list of ICD codes is available on the WHO website as of 2015.