G71 - Primary disorders of muscles
G71.3 - Mitochondrial myopathy, not elsewhere classified
Excludes 1:
-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)