What is the ICD-10 code for hyperhomocysteinemia?

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

How is hyperhomocysteinemia documented?

Document hyperhomocysteinemia by specifying the condition, including lab values, and linking to underlying causes like B12 deficiency.

ICD-10 Coding for Hyperhomocysteinemia(R79.83, E72.11, R79.8)

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Learn about ICD-10 coding for hyperhomocysteinemia, including code R79.83 for acquired cases, documentation requirements, and common pitfalls.

Also known as:

Elevated Homocysteine LevelsHomocysteinemia

Related ICD-10 Code Ranges

Complete code families applicable to Hyperhomocysteinemia

R00-R99Primary Range

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

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

Primary ICD-10-CM Codes

Abnormal findings of blood amino-acid level

R79.83Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

HomocystinuriaE72.11

Abnormal findings of blood amino-acid levelR79.83

Documentation & Coding Risks

Avoid these common issues when documenting Hyperhomocysteinemia.

Documenting 'elevated homocysteine' without a diagnosis

Impact

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

Mitigation

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

Confusing acquired hyperhomocysteinemia with genetic homocystinuria

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

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

Incorrect code selection

Impact

Using E72.11 for acquired hyperhomocysteinemia.

Mitigation

Educate coders on the differences between acquired and genetic conditions.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with R79.83.

Primary Code

R79.83

Abnormal findings of blood amino-acid level

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ICD-10 codes3

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ICD-10 Coding for Hyperhomocysteinemia(R79.83, E72.11, R79.8)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for hyperhomocysteinemia?

How is hyperhomocysteinemia documented?

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