G71.0342

HCC Category Mapping

What This Code Means

A genetic muscle weakness disorder affecting the hip and shoulder muscles caused by dysfunction of beta sarcoglycan, a protein component of the muscle cell membrane.

Coding Tips

• •Verify beta sarcoglycan gene mutation through genetic testing before assigning this specific code
• •Note that beta sarcoglycan deficiency typically follows autosomal recessive inheritance

Clinical Significance

Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction (LGMD2E/LGMDR4) is a severe form of sarcoglycanopathy with high risk of cardiac involvement. Beta-sarcoglycan deficiency can cause both skeletal muscle weakness and dilated cardiomyopathy. Accurate coding supports appropriate cardiac monitoring protocols and reflects the dual burden of skeletal and cardiac muscle disease.

Documentation Requirements

• ✓Genetic testing confirming SGCB gene mutation or muscle biopsy showing absent/reduced beta-sarcoglycan
• ✓Clinical presentation: progressive proximal weakness with possible cardiac involvement
• ✓Cardiac evaluation results: echocardiogram, cardiac MRI when available
• ✓Respiratory function assessment
• ✓Autosomal recessive inheritance pattern documentation
• ✓Provider's explicit diagnosis specifying beta sarcoglycan dysfunction

Commonly Confused Codes