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ICD-10 Coding for Borderline Diabetes Mellitus(R73.09)

Complete ICD-10-CM coding and documentation guide for Borderline Diabetes Mellitus. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

PrediabetesImpaired Glucose ToleranceImpaired Fasting Glucose

Related ICD-10 Code Ranges

Complete code families applicable to Borderline Diabetes Mellitus

R73.0-R73.9Primary Range

Abnormal glucose

This range includes codes for abnormal glucose levels, including borderline diabetes.

Type 2 Diabetes Mellitus

Used when diabetes is confirmed, not for borderline cases.

Key Information: ICD-10 code for borderline diabetes mellitus

Essential facts and insights about Borderline Diabetes Mellitus

The ICD-10 code for borderline diabetes mellitus is R73.09, used when lab values indicate prediabetes.

Primary ICD-10-CM Code for borderline diabetes mellitus

Other abnormal glucose
Billable Code

Decision Criteria

clinical Criteria

  • Lab values in prediabetic range

documentation Criteria

  • Explicit mention of 'borderline diabetes'

Applicable To

  • Borderline diabetes
  • Prediabetes

Excludes

  • Diabetes mellitus (E11.9)

Clinical Validation Requirements

  • Fasting plasma glucose 100-125 mg/dL
  • A1C 5.7-6.4%
  • OGTT 140-199 mg/dL

Code-Specific Risks

  • Confusing with confirmed diabetes codes
  • Using without proper lab documentation

Coding Notes

  • Ensure lab values are documented to support the use of R73.09.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Encounter for screening for diabetes mellitus

Z13.1
Use for asymptomatic screening that identifies prediabetes.

Family history of diabetes mellitus

Z83.3
Use if there is a family history of diabetes.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Type 2 diabetes mellitus without complications

E11.9
Use E11.9 when diabetes is confirmed with A1C ≥6.5%.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Borderline Diabetes Mellitus to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code R73.09.

Impact

Clinical: May lead to incorrect treatment plans., Regulatory: Non-compliance with coding guidelines., Financial: Potential for denied claims.

Mitigation Strategy

Always document lab results when diagnosing borderline diabetes.

Impact

Reimbursement: Incorrect coding may affect risk adjustment scores., Compliance: May lead to compliance issues during audits., Data Quality: Affects the accuracy of patient records.

Mitigation Strategy

Use R73.09 for borderline cases unless diabetes is confirmed.

Impact

Using E11.9 instead of R73.09 for borderline cases.

Mitigation Strategy

Educate coders on the importance of lab values and explicit documentation.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Borderline Diabetes Mellitus, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Borderline Diabetes Mellitus

Use these documentation templates to ensure complete and accurate documentation for Borderline Diabetes Mellitus. These templates include all required elements for proper coding and billing.

Routine check-up with borderline diabetes diagnosis

Specialty: Primary Care

Required Elements

  • Diagnosis of borderline diabetes
  • Lab results
  • Management plan

Example Documentation

Assessment: Borderline diabetes (R73.09). Labs: FPG 112 mg/dL, A1C 6.0%. Plan: Lifestyle modification advised.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has sugar issues. Follow up in 3 months.
Good Documentation Example
Assessment: Borderline diabetes (R73.09). Labs: A1C 6.1%, FPG 110 mg/dL. Plan: Refer to CDC Diabetes Prevention Program.
Explanation
The good example includes specific lab values and a clear plan.

Need help with ICD-10 coding for Borderline Diabetes Mellitus? Ask your questions below.

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