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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Other Psychoses 295-299 > ICD-9-CM Diagnosis 299 Psychoses with origin specific to childhood 299 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 299.0 Infantile autism A disorder beginning in childhood. It is 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. (DSM-IV) 299.0 is a non-specific code that cannot be used to specify a diagnosis 299.0 contains 6 index entries ICD-9-CM Diagnosis 299.00 Autistic disorder, current or active state 299.00 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 299.01 Autistic disorder, residual state 299.01 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 299.1 Disintegrative psychosis 299.1 is a non-specific code that cannot be used to specify a diagnosis 299.1 contains 10 index entries ICD-9-CM Diagnosis 299.10 Childhood disintegrative disorder, current or active state 299.10 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 299.11 Childhood disintegrative disorder, residual state 299.11 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 299.8 Other specified early childhood psychoses A childhood disorder predominately affecting boys and similar to autism (AUTISTIC DISORDER). It is characterized by severe, sustained, clinically significant impairment of social interaction, and restricted repetitive and stereotyped patterns of behavior. In contrast to autism, there are no clinically significant delays in language or cognitive development. (From DSM-IV) 299.8 is a non-specific code that cannot be used to specify a diagnosis 299.8 contains 10 index entries ICD-9-CM Diagnosis 299.80 Other specified pervasive developmental disorders, current or active state 299.80 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 299.81 Other specified pervasive developmental disorders, residual state 299.81 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 299.9 Unspecified childhood psychosis An obsolete concept, historically used for childhood mental disorders thought to be a form of schizophrenia. 299.9 is a non-specific code that cannot be used to specify a diagnosis 299.9 contains 6 index entries ICD-9-CM Diagnosis 299.90 Unspecified pervasive developmental disorder, current or active state 299.90 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 299.91 Unspecified pervasive developmental disorder, residual state 299.91 is a specific code that can be used to specify a diagnosis