Mitochondrial Complex I Deficiency Nuclear Type 19 C4748791
A hereditary condition where the first complex of the mitochondrial respiratory chain is defective, limiting energy production in cells. It often affects organs with high energy needs. Care focuses on symptom management and supportive therapy.
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
Vision loss
Fatigue or weight changes
(metabolic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Failure to thrive
(metabolic)Ataxia
(metabolic)Diabetes mellitus
(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
Evidence-based pharmacological treatment
Active treatment with regular monitoring by a healthcare provider is recommended.
Mitochondrial Support Cocktail
Combination therapy with CoQ10, L-carnitine, alpha-lipoic acid, and B-complex vitamins to optimize mitochondrial function and reduce oxidative stress.
Multisystem Function Assessment
Comprehensive monitoring including liver function tests, cardiac evaluation, and metabolic panels to detect organ involvement progression.
Additional treatment options
Modified Protein Intake Protocol
Carefully balanced protein intake with emphasis on easily digestible amino acids to support mitochondrial protein synthesis without metabolic strain.
dietaryFeeding Tube Placement (if indicated)
Gastrostomy tube placement for patients with severe feeding difficulties or failure to thrive to ensure adequate caloric and nutritional intake.
procedureAcetyl-L-Carnitine Supplementation
Specific supplementation with acetyl-L-carnitine to support fatty acid metabolism and improve neuronal energy availability.
complementaryWhen 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 19 C4748791?
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 19 C4748791. 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