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ICD-10 Coding for Hyperhomocysteinemia(R79.83, E72.11)

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

Also known as:

Elevated Homocysteine LevelsHomocysteinemia

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Related ICD-10 Code Ranges

Complete code families applicable to Hyperhomocysteinemia

R70-R79Primary Range

Abnormal findings on examination of blood, without diagnosis

This range includes codes for abnormal blood findings, including hyperhomocysteinemia.

E70-E88

Metabolic disorders

This range includes codes for metabolic disorders, such as homocystinuria, which is related to hyperhomocysteinemia.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
R79.83Abnormal findings of blood amino-acid levelUse when hyperhomocysteinemia is acquired and documented with lab values.
  • Homocysteine level ≥15 µmol/L
  • Documentation of acquired cause (e.g., B12 deficiency)
E72.11HomocystinuriaUse for confirmed genetic homocystinuria.
  • Genetic testing confirming CBS deficiency
  • Plasma homocysteine >100 µmol/L

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for hyperhomocysteinemia

Essential facts and insights about Hyperhomocysteinemia

The ICD-10 code for acquired hyperhomocysteinemia is R79.83, used for abnormal findings of blood amino-acid levels.

Primary ICD-10-CM Codes for hyperhomocysteinemia

R79.83
Abnormal findings of blood amino-acid level
Billable Code

Decision Criteria

clinical Criteria

  • Homocysteine level ≥15 µmol/L with acquired etiology

documentation Criteria

  • Explicit mention of 'hyperhomocysteinemia' in medical records

Applicable To

  • Acquired hyperhomocysteinemia

Excludes

Clinical Validation Requirements

  • Homocysteine level ≥15 µmol/L
  • Documentation of acquired cause (e.g., B12 deficiency)

Code-Specific Risks

  • Confusion with genetic homocystinuria

Coding Notes

  • Ensure documentation specifies 'hyperhomocysteinemia' with lab values.
View Full Code Details

Ancillary Codes

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

Hypertension codes

I10-I16
Use when hyperhomocysteinemia is associated with hypertension (H-type hypertension).

Differential Codes

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

Homocystinuria

E72.11
Use E72.11 for genetic CBS deficiency, not for acquired hyperhomocysteinemia.

Abnormal findings of blood amino-acid level

R79.83
Use R79.83 for acquired hyperhomocysteinemia.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Hyperhomocysteinemia to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code R79.83.

Impact

Clinical: May lead to inadequate treatment planning., Regulatory: Fails to meet documentation standards., Financial: Can result in claim denials or reduced reimbursement.

Mitigation Strategy

Use specific diagnosis terms like 'hyperhomocysteinemia'., Link lab results to clinical diagnosis.

Impact

Reimbursement: Incorrect coding can lead to overpayments or denials., Compliance: Misclassification affects compliance with coding standards., Data Quality: Impacts the accuracy of patient records and data analysis.

Mitigation Strategy

Use R79.83 for acquired cases and E72.11 for genetic cases.

Impact

Using E72.11 for acquired hyperhomocysteinemia.

Mitigation Strategy

Educate coders on the differences between acquired and genetic conditions.

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 Hyperhomocysteinemia, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Hyperhomocysteinemia

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

Managing hyperhomocysteinemia in a cardiology setting

Specialty: Cardiology

Required Elements

  • Patient history
  • Lab results
  • Treatment plan

Example Documentation

64M with H-type hypertension (BP 148/92, Hcy 19 µmol/L), LDL 115 mg/dL. Plan: Initiate betaine supplementation, repeat Hcy in 8 weeks. Codes: R79.83 + I10

Examples: Poor vs. Good Documentation

Poor Documentation Example
High homocysteine noted.
Good Documentation Example
Hyperhomocysteinemia (Hcy 22 µmol/L) secondary to B12 deficiency, refractory to oral supplementation.
Explanation
The good example provides specific lab values and underlying cause, supporting accurate coding.

Need help with ICD-10 coding for Hyperhomocysteinemia? Ask your questions below.

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