ICD-10 Diagnosis Code R73.02

Impaired glucose tolerance (oral)

Diagnosis Code R73.02

ICD-10: R73.02
Short Description: Impaired glucose tolerance (oral)
Long Description: Impaired glucose tolerance (oral)
This is the 2017 version of the ICD-10-CM diagnosis code R73.02

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    • Abnormal findings on examination of blood, without diagnosis (R70-R79)
      • Elevated blood glucose level (R73)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Diagnostic Related Groups
The diagnosis code R73.02 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 790.22 - Impaired oral glucse tol

  • Hyperinsulinism
  • Impaired glucose tolerance
  • Impaired glucose tolerance associated with drugs
  • Impaired glucose tolerance associated with genetic syndrome
  • Impaired glucose tolerance associated with hormonal etiology
  • Impaired glucose tolerance associated with insulin receptor abnormality
  • Impaired glucose tolerance associated with pancreatic disease
  • Impaired glucose tolerance in and individual with a heritable form of maturity onset diabetes in the young
  • Impaired glucose tolerance in nonobese
  • Impaired glucose tolerance in obese
  • Impaired glucose tolerance test
  • Impaired glucose tolerance with hyperinsulism
  • Potential abnormality of glucose tolerance

Index of Diseases and Injuries
References found for the code R73.02 in the Index of Diseases and Injuries:

Information for Patients

Blood Sugar

Also called: Blood glucose

Blood sugar, or glucose, is the main sugar found in your blood. It comes from the food you eat, and is your body's main source of energy. Your blood carries glucose to all of your body's cells to use for energy.

Diabetes is a disease in which your blood sugar levels are too high. Over time, having too much glucose in your blood can cause serious problems. Even if you don't have diabetes, sometimes you may have problems with blood sugar that is too low or too high. Keeping a regular schedule of eating, activity, and taking any medicines you need can help.

If you do have diabetes, it is very important to keep your blood sugar numbers in your target range. You may need to check your blood sugar several times each day. Your health care provider will also do a blood test called an A1C. It checks your average blood sugar level over the past three months. If your blood sugar is too high, you may need to take medicines and/or follow a special diet.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • A1C test
  • Blood sugar test - blood
  • Glucose screening and tolerance tests during pregnancy
  • Home blood sugar testing
  • Know Your Blood Sugar Numbers - NIH - Easy-to-Read (National Diabetes Education Program)
  • Managing your blood sugar

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