What is an ICD Code?

by | Data

What’s a diagnosis code?

International Statistical Classification of Diseases (ICD) codes are medical codes used to describe medical diagnoses including diseases, disorders and injuries. These codes are used by providers, payers and health organizations to describe a diagnosis. Learn more about ICD codes.

There are nearly 70,000 ICD codes, which are reviewed every year to add, modify or remove codes. ICD codes are divided into chapters and get quite specific. For example:

  • Codes I00 – I99 are for Diseases of the circulatory system
    • Codes I20 – I25 are for Ischemic Heart Diseases
      • Code I21 is for an Acute myocardial infarction

How could you use these codes?

These codes can be helpful when investigating what kinds of patients and disease states specific providers are seeing, and how many of them they are diagnosing. This analysis can give some insight into the nature of a provider’s practice. For example, you could identify a subset of primary care physicians who diagnose a large volume of Atherosclerotic heart disease. This subset could be used as the starting point for a community outreach and education.

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