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Home/Diagnosis/ICD-10 Coding for Elevated Homocysteine

ICD-10 Coding for Elevated Homocysteine

R79.83
E72.11
E72.12

Complete ICD-10-CM coding and documentation guide for icd-10 coding for elevated homocysteine includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Hyperhomocysteinemia
High Homocysteine Levels
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Key Information: ICD-10 Coding for Elevated Homocysteine

Essential facts and insights about ICD-10 Coding for Elevated Homocysteine

Use ICD-10 code R79.83 for abnormal findings of blood amino-acid levels, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Abnormal findings of blood amino-acid levels

Billable Code
R79.83
Billable

Diagnostic Criteria

  • • Homocysteine level >15 μmol/L
  • • Exclusion of genetic causes

Applicable To

  • • Hyperhomocysteinemia

Important Notes

  • • Ensure documentation specifies homocysteine levels and excludes genetic causes.

Homocystinuria

Billable Code
E72.11
Billable

Diagnostic Criteria

  • • Genetic confirmation of CBS deficiency
  • • Homocysteine level >13.9 μmol/L

Applicable To

  • • CBS deficiency

Important Notes

  • • Documentation must include genetic test results confirming CBS deficiency.

MTHFR deficiency

Billable Code
E72.12
Billable

Diagnostic Criteria

  • • Genetic testing showing MTHFR polymorphism
  • • Homocysteine level 15-30 μmol/L

Applicable To

  • • MTHFR C677T polymorphism

Important Notes

  • • Ensure genetic testing results are documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

D51.0

Vitamin B12 deficiency anemia

Use when elevated homocysteine is due to B12 deficiency.

Frequently Asked Questions

What is the ICD-10 code for elevated homocysteine?

The ICD-10 code for elevated homocysteine is R79.83, used for abnormal blood amino-acid levels without a specific genetic cause.

How is homocystinuria coded in ICD-10?

Homocystinuria is coded as E72.11 in ICD-10, requiring genetic confirmation of CBS deficiency.

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