congenital muscular dystrophy Xref MGI. OMIM mapping confirmed by DO. [SN]. GARD:9138 ICD9CM:359.0 OMIM:254100 DOID:0050557 A muscular dystrophy that is characterized by diminished muscle tone (hypotonia), progressive muscle weakness and degeneration (atrophy), abnormally fixed joints, spinal rigidity, and delays in reaching motor milestones such as sitting or standing unassisted. disease_ontology ORDO:97242 SNOMEDCT_US_2020_03_01:193221009 UMLS_CUI:C2937300 physical disorder muscular dystrophy