G71..3 Mitochondrial myopathy, not elsewhere classified

Excludes 1 (cannot be coded together)

• Kearns-Sayre syndrome (H49.81)
• Leber's disease (H47.21)
• Leigh's encephalopathy (G31.82)
• mitochondrial metabolism disorders (E88.4.-)
• Reye's syndrome (G93.7)