There are 2 ICD-9-CM codes below 299.9 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Diagnosis Definition(s)
Broad term for disorders, usually first diagnosed in children prior to age 4, characterized by severe and profound impairment in social interaction, communication, and the presence of stereotyped behaviors, interests, and activities. Compare DEVELOPMENTAL DISABILITIES.
group of disorders characterized by delays in the development of socialization and communication skills; typical age of onset is before 3 years of age; symptoms may include problems with using and understanding language; difficulty relating to people, objects, and events; unusual play with toys and other objects; difficulty with changes in routine or familiar surroundings, and repetitive body movements or behavior patterns; AUTISM is the most characteristic and best studied PDD; other types of PDD include ASPERGER SYNDROME, Childhood Disintegrative Disorder, and RETT SYNDROME; prefer NTs where possible.
Excludes
schizophrenia of adult type occurring in childhood (295.0-295.9)
Also applicable to/known as
Child psychosis NOS
Pervasive developmental disorder NOS
Schizophrenia, childhood type NOS
Schizophrenic syndrome of childhood NOS
ICD-9-CM Volume 2 Index Entries That Refer To 299.9
2010 ICD-9-CM Diagnosis Code 299.9
299.9
