Quest Diagnostic hosts a database of medical laboratory test codes on its website. Users can look up tests by the code or the full name of the test.
Heath care providers must document everything they do for patients, and medical coders translate those notes into codes that allow the services to be billed, explains the American Academy of Professional Coders. Medical coders use different, parallel coding systems, each with its own purpose. The Healthcare Common Procedural Coding System is primarily used to submit billing information to Medicare, Medicaid and insurance companies. Another prominent system, the International Classification of Diseases, is used to track disease trends throughout the world, according to the World Health Organization.