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R73.01
ICD-10-CM
Impaired Fasting Glucose

Understand Impaired Fasting Glucose (IFG), also known as prediabetes, with this guide for healthcare professionals. Learn about IFG diagnosis criteria, clinical documentation best practices, and relevant medical coding (ICD-10 codes R73.09, E16.1) for accurate reimbursement. Explore information on blood glucose levels, fasting plasma glucose, and glucose tolerance testing. Find resources for patient education and management of IFG to prevent progression to type 2 diabetes.

Also known as

Prediabetes
Elevated Fasting Glucose
Abnormal Fasting Glucose

Diagnosis Snapshot

Key Facts
  • Definition : Blood sugar levels are higher than normal after fasting, but not high enough for diabetes.
  • Clinical Signs : Often no symptoms. Increased thirst, hunger, or urination can sometimes occur.
  • Common Settings : Primary care, endocrinology, diabetes education programs

Related ICD-10 Code Ranges

Complete code families applicable to AAPC R73.01 Coding
R73.09

Impaired fasting glucose

Higher than normal blood sugar after fasting.

E16.9

Nondiabetic hypoglycemic coma

Coma due to low blood sugar, not related to diabetes.

R73.9

Abnormal glucose

Unspecified abnormal blood sugar level.

Z72.82

Prediabetes screening

Check-up for higher-than-normal blood sugar levels.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Fasting blood glucose level 100-125 mg/dL?

  • Yes

    Symptoms of diabetes?

  • No

    Fasting blood glucose < 100 mg/dL?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Impaired Fasting Glucose
Impaired Glucose Tolerance
Prediabetes

Documentation Best Practices

Documentation Checklist
  • Impaired fasting glucose diagnosis code
  • Fasting plasma glucose 100-125 mg/dL
  • Document two separate IFG results
  • Exclude diabetes diagnosis criteria
  • HbA1c, OGTT if available

Coding and Audit Risks

Common Risks
  • Unspecified IFG Code

    Using unspecified codes (e.g., R73.09) when more specific IFG documentation is available, leading to inaccurate risk adjustment.

  • IFG vs. Prediabetes

    Confusing IFG with prediabetes or diabetes, resulting in incorrect coding (e.g., E16.9 instead of R73.03) and impacting quality metrics.

  • Lacking IFG Documentation

    Insufficient documentation of fasting blood glucose levels and diagnostic criteria for IFG (100-125 mg/dL), causing coding errors and lost revenue.

Mitigation Tips

Best Practices
  • ICD-10 R73.09, improve documentation: Detail diet, exercise, weight changes.
  • CPT 77075: Document fasting time, patient symptoms, family history for compliance.
  • HCC coding: Link IFG to related diagnoses like obesity (E66.0-) for risk adjustment.
  • CDI query: Clarify unclear glucose values for accurate coding, improved reimbursement.
  • Lifestyle changes: Advise regular exercise, healthy diet, monitor A1c for better outcomes.

Clinical Decision Support

Checklist
  • Confirm fasting plasma glucose 100-125 mg/dL (ICD-10 R73.09)
  • Verify patient fasted 8-12 hours prior to test
  • Document symptoms if present (polyuria, polydipsia)
  • Exclude other causes of hyperglycemia (medications, stress)
  • Consider HbA1c to assess average glucose (CPT 83036)

Reimbursement and Quality Metrics

Impact Summary
  • Impaired Fasting Glucose Reimbursement: Maximize revenue with accurate ICD-10 R73.09 coding. Proper documentation supports higher payment.
  • Coding Accuracy Impact: Avoid denials with specific R73.09 diagnosis coding for Impaired Fasting Glucose, not general metabolic codes.
  • Hospital Reporting Metrics: Precise R73.09 coding improves data quality for diabetes prevalence and prediabetic patient population tracking.
  • Quality Metrics Impact: Accurate coding reflects quality of care for at-risk patients and facilitates preventive interventions.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Document FPG 100-125 mg/dL
  • Code IFG R73.09
  • Exclude DM diagnosis
  • Review A1c levels
  • Correlate with symptoms

Documentation Templates

Patient presents with impaired fasting glucose (IFG), also known as prediabetes, diagnosed based on a fasting plasma glucose (FPG) level of 100-125 mgdL.  This elevated blood sugar indicates impaired glucose tolerance and increased risk for developing type 2 diabetes mellitus.  Patient denies polyuria, polydipsia, polyphagia, and weight loss.  Review of systems otherwise negative.  Family history is significant for type 2 diabetes in the patient's mother.  Physical exam reveals no abnormalities.  Patient education provided regarding lifestyle modifications including dietary changes focusing on a reduced carbohydrate intake and regular exercise to improve insulin sensitivity and glucose control.  The importance of weight management and achieving a healthy BMI was emphasized.  Discussed the increased risk of cardiovascular disease and microvascular complications associated with prediabetes.  Patient instructed to monitor blood glucose levels and return for follow-up testing in three months to reassess FPG levels and evaluate the effectiveness of lifestyle interventions.  Diagnosis codes:  R73.09 (Other abnormal glucose).  ICD-10-CM code E16.1 (Prediabetes, unspecified).
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