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What are Medical Codes?


Medical Codes are the transformation of healthcare diagnosis, procedures, medical services, and equipment into universal medical alphanumeric codes. The procedure codes are taken the American Medical Association (AMA) Guidelines and the World Health Organization (WHO) classification of Diseases and Diagnosis (ICD 10 and ICD 11) Guidelines. The medical codes are assigned based on the information that is documented in a patient's healthcare record /medical such as transcription of physician's notes, laboratory and radiologic results, etc.


What is Medical Coding?

Medical Coding is using the Medical Codes by applying them / assigning them correctly during the medical billing process. This information is abstracted from the documentation to create a claim to be paid by the insurance carriers.

Medical coding happens every time a patient visits or has an encounter with the healthcare provider. The healthcare provider reviews the patient's complaint and medical history, makes an expert assessment of what’s wrong and how to treat the patient, and documents the patient's visit. That documentation is not only the patient’s ongoing record, it’s how the healthcare provider gets paid.

Medical coders translate documentation into standardized codes that tell payers the following:

  • Patient's diagnosis

  • Medical necessity for treatments, services, or supplies the patient received

  • Treatments, services, and supplies provided to the patient

  • Any unusual circumstances or medical condition that affected those treatments and services

A Medical Coder requires the ability to understand human anatomy, physiology and medical terminology with the details of the services, and the rules and regulations of the payers to succeed.

Medical Coders should acquire a Global Certification to become a Certified Professional Coder (CPC) to start their careers. To know more about the certification programs chat with our team using the Let's Chat or WhatsApp! button at the end of your screen.

Quick Resources: Study Material

International Classification of Diseases (ICD10):

ICD 10 Codes 

Alphabetic Index

ICD 11 Codes

1CD 10 AM - Australian Modification

ICD 10 Blood Diseases

ICD 10 Neoplasm

Current Procedural Terminology (CPT):

Evaluation and Management (E/M)



  General (10004-10021)

  Integumentary System (10030-19499)

  Musculoskeletal System (20100-29999)

  Respiratory System (30000-32999) 

  Cardiovascular System (33016-37799) 

  Digestive System (40490-49999) 

  Urinary System (50010-53899) 

Physiology, Human Anatomy and Medical Terminology:

   Integumentary System

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