obsolete_Waardenburg syndrome type 1 true http://purl.obolibrary.org/obo/MONDO_0008670 UMLS:C1847800 ICD10:E70.3 Replaced with Mondo term. OMIM:193500 3.41.0 orphanet Waardenburg syndrome type 1 (WS1) is a subtype of Waardenburg syndrome (WS; see this term), disorder characterized by congenital of deafness, minor defects in structures arising from neural crest resulting in pigmentation anomalies of eyes, hair, and skin, in combination with dystopia canthorum. WS1