Medical Coding Primer

If you are new to medical coding, this page introduces to you some basic terms and knowledge about medical coding.

Medical Coding

Medical coding is the process of classifying patients into different types, i.e., to categorize patients into different classes based on the conditions or services patients received from health care providers. Medical coding is a necessary step for billing and reimbursement for health care providers.

Diagnosis Coding

Diagnosis coding is to classify patients into different categories based on their diseases or conditions.

Procedure Coding

Procedure coding is to classify the services such as surgery, diagnostic procedures etc into different categories.


The following is a list of common acronyms used in medical coding. It is necessary to understand these acronyms in order to use this website to assist you in medical coding.