ICD-10-CM > G00-G99 > G70-G73 > G71 > G71.1 > G71.11 G71.11 Myotonic muscular dystrophy Billable/Specific Copy Code Copy Description Applicable To Dystrophia myotonica [Steinert]Myotonia atrophicaMyotonic dystrophyProximal myotonic myopathy (PROMM)Steinert disease