Medical coding is the process of assigning alphanumeric codes to diagnoses, procedures, and other healthcare services. These codes are used to track patient care, facilitate reimbursement, and support research.
The two main coding systems used in the United States are the International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) and the Current Procedural Terminology (CPT). ICD-10-CM is used to code diagnoses, while CPT is used to code procedures.

Why is Medical Coding Important?
Medical coding is important for a number of reasons. First, it allows healthcare providers to accurately bill insurance companies for the services they provide. This ensures that patients receive the care they need without having to worry about out-of-pocket expenses.
Second, medical coding helps to track patient care. By assigning codes to diagnoses and procedures, healthcare providers can track the types of care that patients are receiving and identify areas where improvements can be made.
Third, medical coding supports research. By tracking patient care data, researchers can better understand the causes and treatments of diseases. This information can be used to develop new and improved healthcare interventions.
How does Medical Coding Work?
The medical coding process begins with a review of the patient’s medical record. The coder then identifies the diagnoses and procedures that were performed. The coder then looks up the appropriate codes in the ICD-10-CM or CPT manuals.
Once the codes have been assigned, the coder creates a claim that is submitted to the insurance company. The insurance company then reviews the claim and determines how much it will pay.
Who are medical coders?
Medical coders are healthcare professionals who specialize in assigning codes to diagnoses and procedures. They must have a thorough understanding of the ICD-10-CM and CPT manuals, as well as the healthcare industry.
Medical coders typically work in hospitals, clinics, and other healthcare settings. They may also work for insurance companies or billing companies.
How to become a medical coder?
There are a few different ways to become a medical coder. One way is to complete a medical coding certification program. There are many different certification programs available, both online and in person.
Another way to become a medical coder is to get a degree in medical coding. There are a number of colleges and universities that offer medical coding programs.
Once you have completed a certification program or degree, you can take the certification exam for the American Academy of Professional Coders (AAPC). The AAPC certification exam is the most widely recognized medical coding certification exam.
Salary and job outlook for medical coders
The median annual salary for medical coders is $45,900. The job outlook for medical coders is expected to grow 18% from 2020 to 2030, faster than the average for all occupations. This growth is due to the increasing demand for healthcare services and the need for accurate medical coding to support billing and reimbursement.
Conclusion
Medical coding is an important part of the healthcare system. By assigning codes to diagnoses and procedures, medical coders help to ensure that patients receive the care they need, that healthcare providers are reimbursed fairly, and that research is supported.
If you are interested in a career in medical coding, there are a number of resources available to help you get started. You can find more information about medical coding certification programs, degrees, and the AAPC certification exam on the AAPC website.