Health Information Management

Tip: Coding diabetes in ICD-10-CM

APCs Insider, December 5, 2014

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Codes for reporting conditions relating to the endocrine system are located in Chapter 4 of the ICD-10-CM Manual, Endocrine, Nutritional and Metabolic Diseases, and begin with the letter E.
Diabetes will be separated into five categories by the cause or type of the disease. Coders can choose from categories:
  • E08, diabetes mellitus due to underlying condition
  • E09, drug- or chemical-induced diabetes mellitus
  • E10, Type 1 diabetes mellitus
  • E11, Type 2 diabetes mellitus
  • E13, other specified diabetes mellitus
Coders are also instructed to use an additional code (Z79.4) if the physician documents long-term insulin use for patients with diabetes mellitus for each category except E10.
The codes do not use terms such as "controlled" or "uncontrolled," as in ICD-9-CM. Instead, coders will first choose the type of diabetes—type 1, type 2, due to an underlying condition, or due to a drug or chemical—and then choose the code with hyperglycemia when reporting "uncontrolled" diabetes.
This tip is adapted from “Catch up on endocrine system anatomy and coding in ICD-10-CM” in the December issue of Briefings on APCs.

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