Short answer · Medically reviewed summary · Last updated: 2026-05-08
Central Core Disease is primarily classified under ICD-10 code G71.2 (congenital myopathies) and ICD-9 code 359.0 (congenital hereditary muscular dystrophy). These diagnostic codes are essential for healthcare providers to document the clinical presentation of this rare, inherited neuromuscular disorder. What is Central Core Disease and how is it classified? Central Core Disease is a rare genetic myopathy characterized by muscle weakness and a specific "core" appearance of muscle fibers under a microscope.
ICD10 code of Central Core Disease and ICD9 code
ICD-10 and ICD-9 codes for Central Core Disease, with classification details for clinicians, coders and patients.
Central Core Disease is primarily classified under ICD-10 code G71.2 (congenital myopathies) and ICD-9 code 359.0 (congenital hereditary muscular dystrophy). These diagnostic codes are essential for healthcare providers to document the clinical presentation of this rare, inherited neuromuscular disorder.
What is Central Core Disease and how is it classified?
Central Core Disease is a rare genetic myopathy characterized by muscle weakness and a specific "core" appearance of muscle fibers under a microscope. Because it is a form of congenital myopathy, medical coding systems like ICD-10 and ICD-9 group Central Core Disease with other conditions that affect muscle structure and function from birth or early childhood.
Is Central Core Disease hereditary?
Yes, Central Core Disease is an inherited condition typically following an autosomal dominant pattern of inheritance. It is most commonly caused by pathogenic variants in the RYR1 gene, which encodes the ryanodine receptor 1 protein. Understanding the genetic nature of Central Core Disease is vital for family planning and identifying potential risks for malignant hyperthermia, a life-threatening reaction to certain anesthesia drugs.
What are the clinical manifestations of Central Core Disease?
The severity of Central Core Disease varies significantly between individuals, even within the same family. Common clinical findings include:
- Hypotonia (low muscle tone) often present at birth or in early infancy.
- Delayed motor milestones, such as walking later than peers.
- Proximal muscle weakness affecting the hips and thighs.
- Skeletal abnormalities, including scoliosis or hip dislocations.
- Increased susceptibility to malignant hyperthermia during surgery.
How is Central Core Disease managed?
While there is no cure, management for Central Core Disease focuses on supportive care. Our community at DiseaseMaps.org, which includes 89 people living with Central Core Disease, highlights the importance of physical therapy to maintain joint mobility and multidisciplinary monitoring by neurologists and orthopedists to manage physical limitations.
Next steps
- Consult a neuromuscular specialist or genetic counselor to discuss genetic testing for RYR1 variants.
- Inform all surgical teams of your diagnosis to avoid anesthesia triggers associated with malignant hyperthermia.
- Join the Central Core Disease community on DiseaseMaps.org to connect with others sharing similar experiences.
Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Central Core Disease.
- Orphanet: Congenital myopathy due to RYR1 mutation (ORPHA:205).
- OMIM (Online Mendelian Inheritance in Man): #117000 Central Core Disease of Muscle.
- Muscular Dystrophy Association (MDA): Information on Congenital Myopathies.
