pervasive developmental disorder atypical autism https://www.malacards.org/card/atypical_autism SCTID:231536004 DOID:0060042 icd11.foundation:2136163538 Orphanet:199627 MONDO:0016052 UMLS:C0338986 ICD9:299.80 Atypical autism is a pervasive developmental disorder that does not fit the diagnosis for the other specific autistic spectrum disorders (autism, Asperger syndrome, Rett syndrome or childhood disintegrative disorder) and is characterized by usually milder developmental and social delay and less stereotypical autistic behavior. ' MedDRA:10003747 MEDGEN:572882 GARD:0020336