R73.02
Impaired glucose tolerance (oral)
Clinical Classification Guidelines
Inclusion Terms
- Elevated glucose tolerance
Medical Intelligence & Overview
Impaired glucose tolerance (IGT) is a health condition characterized by higher-than-normal blood sugar levels following ingestion of glucose, but not high enough to be classified as diabetes. This condition often serves as a warning sign for potential development of type 2 diabetes and is considered a prediabetic state. Categorized under ICD-10 code R73.02, impaired glucose tolerance is an important health indicator that warrants attention and management to prevent progression to diabetes.
Causes & Symptoms
Clinical Causes: Insulin resistance: When the body's cells do not respond properly to insulin, leading to elevated blood glucose levels. Obesity: Excess weight can contribute to insulin resistance and impaired glucose regulation. Sedentary lifestyle: Lack of physical activity can reduce insulin sensitivity. Dietary factors: High intake of processed foods, sugars, and saturated fats may worsen glucose tolerance. Genetic predisposition: Family history of diabetes increases risk. Hormonal imbalances: Conditions affecting hormones like cortisol or growth hormone can influence blood glucose levels. Certain medications: Use of steroids or other drugs may impair glucose metabolism. Age: Risk increases with advancing age due to changes in insulin sensitivity and pancreatic function.
Key Symptoms: Usually asymptomatic, but some may experience: Increased thirst Frequent urination Fatigue Blurred vision Unusual hunger Recurrent infections, such as yeast infections Darkened skin patches, especially around neck or armpits (acanthosis nigricans)
Diagnostic & Treatment
Diagnosis Path: Diagnosis of impaired glucose tolerance typically involves a glucose tolerance test (GTT). During this test, the individual consumes a standard amount of glucose, and blood sugar levels are measured at intervals. A result indicating blood glucose levels higher than normal but below diabetic thresholds confirms IGT. Additional blood tests, such as fasting blood glucose and HbA1c, may also support the diagnosis. Routine screening for at-risk individuals is essential for early detection.
Treatment Protocols: Adopting a balanced diet rich in whole grains, vegetables, and lean proteins while reducing processed foods and sugars. Engaging in regular physical activity, such as walking, cycling, or swimming, aiming for at least 150 minutes of moderate exercise weekly. Achieving and maintaining a healthy weight to improve insulin sensitivity. Monitoring blood glucose levels periodically to track progress. Addressing other risk factors like high blood pressure or dyslipidemia. In some cases, healthcare providers may consider medication options if lifestyle changes are insufficient.
Clinical Advice & FAQs
Billing Guidance
Is R73.02 a billable ICD-10 code?
Yes, R73.02 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report R73.02?
Clinical documentation must specify the nature of Impaired glucose tolerance (oral) and any associated comorbidities for accurate reporting.
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