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Home/Diagnosis/ICD-10 Coding for Homocysteine Disorders

ICD-10 Coding for Homocysteine Disorders

E72.11
R79.83
E72.12

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

Also Known as:
Hyperhomocysteinemia
Homocystinuria
MTHFR Deficiency
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Key Information: ICD-10 Coding for Homocysteine Disorders

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

Use ICD-10 code E72.11 for homocystinuria, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Homocystinuria

Billable Code
E72.11
Billable

Diagnostic Criteria

  • • Genetic testing confirms CBS mutation.

Applicable To

  • • Cystathionine beta-synthase deficiency

Important Notes

  • • Ensure genetic confirmation is documented.

Abnormal blood amino-acid level

Billable Code
R79.83
Billable

Diagnostic Criteria

  • • Homocysteine 15-100 µmol/L
  • • Normal CBS/MTHFR

Applicable To

  • • Hyperhomocysteinemia

Important Notes

  • • Document specific cause of elevated homocysteine.

MTHFR deficiency

Billable Code
E72.12
Billable

Diagnostic Criteria

  • • MTHFR C677T mutation testing

Applicable To

  • • MTHFR mutation

Important Notes

  • • Ensure mutation confirmation is documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z84.89

Family history of other specified conditions

Use if family history of genetic disorders is documented.

E53.8

Vitamin B12 deficiency

Use if B12 deficiency is the cause.

O99.28

Endocrine/metabolic disorder complicating pregnancy

Use if MTHFR affects pregnancy.

Frequently Asked Questions

What is the ICD-10 code for elevated homocysteine?

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

How do you code homocystinuria?

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

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