non-syndromic X-linked intellectual disability 99 (DOID:0112026)
Alliance: disease page
Synonyms: MRX99; X-linked mental retardation 99
Alt IDs: OMIM:300919
Definition: A non-syndromic X-linked intellectual disability characterized by developmental delay, hypotonia, and variable behavioral abnormalities that has_material_basis_in hemizygous mutation in the USP9X gene on chromosome Xp11.4.