Mitochondrial Complex I Deficiency Nuclear Type 2 C4748737
A genetic disorder impairing the mitochondria's energy production system. It can affect multiple organs, especially those requiring high energy like muscles and nerves. Treatment focuses on supportive care.
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
Sudden weakness
Fatigue or weight changes
(metabolic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Exercise intolerance
(metabolic)Peripheral neuropathy
(metabolic)Thyroid dysfunction
(metabolic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Idebenone or CoQ10 Analogues
Administration of CoQ10 or synthetic analogues like idebenone to bypass complex I deficiency and donate electrons directly to the electron transport chain.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Neurodevelopmental Surveillance
Regular neurological examinations, developmental screenings, and brain imaging to monitor disease progression and guide intervention timing.
Additional treatment options
Seizure Management Interventions
If seizures develop, evaluation for vagus nerve stimulation or other surgical options when medication alone is insufficient.
surgicalNeuropsychological Support Services
Cognitive rehabilitation and psychological support for patients and families to address developmental delays, learning difficulties, and emotional adjustment.
psychologicalEnvironmental Optimization
Reducing environmental stressors including heat, cold, and high altitudes that may exacerbate symptoms due to increased metabolic demands.
lifestyleWhen 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.
What is Mitochondrial Complex I Deficiency Nuclear Type 2 C4748737?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
Compare medications used to treat Mitochondrial Complex I Deficiency Nuclear Type 2 C4748737. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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