There are 2 ICD-9-CM codes below 299.0 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Diagnosis Definition(s)
disorder beginning in childhood marked by the presence of markedly abnormal or impaired development in social interaction and communication and a markedly restricted repertoire of activity and interest; manifestations of the disorder vary greatly depending on the developmental level and chronological age of the individual.
type of autism characterized by very early detection (< 30 months), social coldness, grossly impaired communication, and bizarre motor responses.
2010 ICD-9-CM Diagnosis Code 299.0
299.0