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D 2 Hydroxyglutaric Acidemia C4022415

Published: July 22, 2026Updated: August 20, 2026

A rare metabolic disorder where harmful substances accumulate in the body, affecting the brain and nervous system. It often causes developmental delays and movement problems. Treatment aims to reduce symptoms.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Seizures

Elevated D-2-hydroxyglutarate

(metabolic)

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Developmental delay

(neurological)

Cardiomyopathy

(cardiovascular)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Amino acid-restricted diet

Reduction of lysine and tryptophan intake through special metabolic formulas and dietary modifications to decrease accumulation of toxic metabolites. Often combined with specialized medical foods.

dietary
2

Pharmacological management with first-line agents

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Carglumic acid (N-carbamylglutamate)

Synthetic NAG analog that may help enhance residual enzyme function and reduce toxic metabolite accumulation. Used as adjunctive therapy to support ammonia detoxification pathways.

medication

Additional treatment options

Metabolic crisis prevention protocol

Regular monitoring of plasma and urine organic acid levels, ammonia, and amino acids with fever management protocols and early intervention during metabolic stress to prevent decompensation.

monitoring

Stress avoidance and metabolic pacing

Learning to recognize personal energy limits and avoiding metabolic stressors including prolonged fasting, extreme temperatures, and excessive physical exertion that could trigger decompensation.

lifestyle

Neuropsychological support services

Cognitive assessment and targeted interventions including educational support, behavioral strategies, and family counseling to address developmental delays and improve functional outcomes.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is D 2 Hydroxyglutaric Acidemia C4022415?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat D 2 Hydroxyglutaric Acidemia C4022415. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy