ICD-10-CM > F01-F99 > F80-F89 > F84 F84 Pervasive developmental disorders Non-Billable/Non-Specific Code Also any associated medical condition and intellectual disabilities Codes F84.0Autistic disorderF84.2Rett's syndromeF84.3Other childhood disintegrative disorderF84.5Asperger's syndromeF84.8Other pervasive developmental disordersF84.9Pervasive developmental disorder, unspecified