DO_rare_slim NCIthesaurus has material basis in disease has basis in chromosomal disease Prader-Willi syndrome 1 MESH:D011218 MIM:176270 SNOMEDCT_US_2025_09_01:205794007 GARD:5575 A chromosomal disease that is characterized by weak muscle tone, feeding difficulties, poor growth, and delayed development. Beginning in childhood, affected individuals develop an insatiable appetite, which leads to chronic overeating and obesity. ICD9CM:759.81 ICD10CM:Q87.11 OMIM mapping confirmed by DO. [SN]. disease_ontology ORDO:739 NCI:C75463 DOID:11983 Prader Willi syndrome UMLS_CUI:C0032897 syndrome maternal_uniparental_disomy paternal_variant loss_of_function_variant chromosomal_deletion chromosomal_translocation symptom