G71.0341

HCC Category Mapping

What This Code Means

A genetic muscle weakness disorder affecting the hip and shoulder muscles caused by dysfunction of alpha sarcoglycan, a protein that helps stabilize muscle cell membranes.

Coding Tips

• •Confirm alpha sarcoglycan gene mutation or protein deficiency through genetic testing or muscle biopsy
• •Document the inheritance pattern (autosomal recessive is most common) when available

Clinical Significance

Limb girdle muscular dystrophy due to alpha sarcoglycan dysfunction (LGMD2D/LGMDR3) is the most common sarcoglycanopathy, often presenting in childhood with severe proximal weakness. Alpha-sarcoglycan deficiency can mimic Duchenne muscular dystrophy in severity. Precise coding enables genetic counseling, potential gene therapy eligibility, and accurate representation of disease complexity for risk adjustment.

Documentation Requirements

• ✓Genetic testing confirming SGCA gene mutation or muscle biopsy showing absent/reduced alpha-sarcoglycan
• ✓Clinical presentation: childhood-onset progressive proximal weakness, elevated creatine kinase
• ✓Cardiac evaluation (alpha-sarcoglycanopathy can cause cardiomyopathy)
• ✓Respiratory function assessment
• ✓Functional status: ambulation, activities of daily living
• ✓Family history consistent with autosomal recessive inheritance

Commonly Confused Codes