has material basis in germline mutation in MECP2 X-linked intellectual disability-psychosis-macroorchidism syndrome https://github.com/monarch-initiative/mondo/issues/4521 https://github.com/monarch-initiative/mondo/issues/5588 https://rarediseases.info.nih.gov/diseases/3506/ppm-x-syndrome https://www.malacards.org/card/intellectual_developmental_disorder_x_linked_syndromic_13 https://www.malacards.org/card/x_linked_intellectual_disability_psychosis_macroorchidism_syndrome mental retardation with psychosis, pyramidal signs, and macroorchidism PPM-X mental retardation, X-linked 16 intellectual disability, X-linked, syndromic type 13 intellectual deficit, X-linked - psychosis - macroorchidism OMIM:300055 ICD9:758.89 Orphanet:3077 intellectual disability with psychosis, pyramidal signs, and macroorchidism SCTID:702356009 DOID:0060827 mental retardation, X-linked, syndromic 13 UMLS:C0796222 Lindsay-Burn syndrome PPM-X syndrome intellectual disability, X-linked 79 intellectual developmental disorder, X-linked, syndromic 13, X-linked recessive intellectual disability, X-linked, syndromic 13 mental retardation, X-linked 79 intellectual disability, X-linked, with spasticity mental retardation psychosis macroorchidism MEDGEN:163232 X-linked intellectual disability 79 mental retardation, X-linked, with spasticity MONDO:0010235 MRXS13 mental retardation, X-linked, syndromic type 13 intellectual disability psychosis macroorchidism intellectual disability, X-linked 16 GARD:0003506 X-linked intellectual disability with spasticity X-linked syndromic intellectual disability