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Home/Diagnosis/ICD-10 Coding for Increased Ammonia Level

ICD-10 Coding for Increased Ammonia Level

E72.20
K72.90
G93.41

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

Also Known as:
Hyperammonemia
Elevated Ammonia
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Key Information: ICD-10 Coding for Increased Ammonia Level

Essential facts and insights about ICD-10 Coding for Increased Ammonia Level

Use ICD-10 code E72.20 for urea cycle disorder, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Urea cycle disorder, unspecified

Billable Code
E72.20
Billable

Diagnostic Criteria

  • • Ammonia >200 µmol/L
  • • Neurological symptoms present

Applicable To

  • • Unspecified urea cycle disorder

Important Notes

  • • Ensure documentation specifies metabolic origin.

Hepatic encephalopathy, unspecified

Billable Code
K72.90
Billable

Diagnostic Criteria

  • • Ammonia >100 µmol/L
  • • Presence of liver disease (e.g., cirrhosis)

Applicable To

  • • Hepatic encephalopathy due to liver disease

Important Notes

  • • Ensure linkage to liver disease is documented.

Metabolic encephalopathy

Billable Code
G93.41
Billable

Diagnostic Criteria

  • • Altered mental status
  • • Lab-confirmed ammonia elevation

Applicable To

  • • Encephalopathy due to metabolic causes

Important Notes

  • • Document metabolic cause clearly.

Other specified abnormal findings of blood chemistry

Billable Code
R79.89
Billable

Diagnostic Criteria

  • • Ammonia >50 µmol/L
  • • No clear etiology

Applicable To

  • • Elevated ammonia level without specified cause

Important Notes

  • • Ensure no underlying cause is documented.
Frequently Asked Questions

What ICD-10 code is used for increased ammonia levels?

ICD-10 codes for increased ammonia levels include E72.20 for metabolic causes and K72.90 for liver-related causes.

How do you code hyperammonemia due to liver disease?

Use K72.90 for hepatic encephalopathy when hyperammonemia is due to liver disease.

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