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Medical Coding

Medical coding is the transformation of narrative descriptions of diseases, injuries, and healthcare procedures into numeric or alphanumeric designations (that is, code numbers). The code numbers are detailed in order to accurately describe the diagnoses (that is, what is wrong with the patient) and the procedures performed to test or correct these diagnoses. Because medicine is not always an exact science, codes were developed to identify all reasons for seeking healthcare.
 
Coding health-related data permits access to health records according to diagnoses and procedures for use in clinical care, research, and education. Common uses of medical codes in healthcare include:
  • Identifying symptoms that must be evaluated and to alert other healthcare professionals to life-threatening allergies
  • Reporting services performed for reimbursement
  • Helping with administrative functions such as staffing, scheduling, and adding or decreasing healthcare services
  • Comparing facilities and planning for new services in underserved areas
 

AHIMA has multiple resources related to medical coding on:

The medical coding profession and job descriptions


Networking with other coding professionals


Coding classification standards


Coding education and training products


Other coding resources and links


Authoritative coding advice


Industry Resources for Code Set Maintenance