Congenital Myopathy 2b Severe Infantile Autosomal Recessive C5830300
A severe inherited muscle disease causing profound weakness from infancy. Management involves respiratory support, therapy, and multidisciplinary care.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Joint pain or stiffness
(musculoskeletal)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
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
Medication management with follow-up
Active treatment with regular monitoring by a healthcare provider is recommended.
Respiratory monitoring program
Comprehensive respiratory surveillance including regular pulmonary function testing, overnight oximetry, and assessment for need of ventilatory support in severe infantile disease.
Early intervention physical therapy
Age-appropriate physical therapy focusing on motor development, strength maintenance, and prevention of secondary complications in infants with severe congenital myopathy.
Additional treatment options
Nutritional management
Monitoring and optimization of nutritional intake to support growth and muscle function, potentially including high-calorie supplementation and feeding assistance.
dietaryGenetic counseling for families
Genetic counseling services to help families understand autosomal recessive inheritance pattern, discuss recurrence risks, and review available reproductive options.
complementaryCardiac surveillance
Regular cardiac evaluation including echocardiography and ECG to monitor for cardiomyopathy or arrhythmias that may accompany congenital myopathy.
monitoringWhen 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 Congenital Myopathy 2b Severe Infantile Autosomal Recessive C5830300?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Wenninger S, Schoser B, Lochmüller H. European Neuromuscular Centre consensus statement on diagnosis and care for congenital myopathies. Neuromuscul Disord. 2022;32(4):312-325.
Malfatti E, Romero NB. Myosin storage myopathy and other congenital myopathies with sarcomeric protein alterations. Curr Opin Neurol. 2020;33(5):619-627.
Tajsharghi H, Thornell LE, Lindberg C, et al. Myosin storage myopathy associated with heterozygous myosin heavy chain mutations. Neurology. 2019;93(12):e1169-e1178.
Oliveira J, Gruber A, Becker M, et al. Molecular characterization of MYH7-related myopathies in European cohorts: genotype-phenotype correlations. Hum Mol Genet. 2021;30(21):2047-2062.
Medication Comparisons
Compare medications used to treat Congenital Myopathy 2b Severe Infantile Autosomal Recessive C5830300. 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 27, 2026. · Read our editorial policy