2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Neurotic Disorders, Personality Disorders, And Other Nonpsychotic Mental Disorders 300-316 > Specific Delays In Development 315.* > 2006 ICD-9-CM Diagnosis 315.9 Unspecified delay in development View the most recent version of ICD-9-CM 315.9 Conditions characterized by a significant discrepancy between an individual's perceived level of intellect and their ability to acquire new language and other cognitive skills. These disorders may result from organic or psychological conditions. Relatively common subtypes include DYSLEXIA, dyscalculia, and dysgraphia. Disorders in which there is a delay in development based on that expected for a given age level or stage of development. These impairments or disabilities originate before age 18, may be expected to continue indefinitely, and constitute a substantial impairment. Biological and nonbiological factors are involved in these disorders. 315.9 is a specific code that can be used to specify a diagnosis 315.9 contains 4 index entries View the ICD-9-CM Volume 1 315.* hierarchy Alternate Terminology Developmental disorder NOS Learning disorder NOS  Index entries containing 315.9: Delay, delayed development intellectual NEC 315.9 Disorder - see also Disease development, specific 315.9 associated with hyperkinesia 314.1 coordination 315.4 language 315.31 learning 315.2 arithmetical 315.1 reading 315.00 mixed 315.5 motor coordination 315.4 specified type NEC 315.8 speech 315.39 learning 315.9 Retardation development, developmental, specific (see also Disorder, development, specific) 315.9 learning, specific 315.2 arithmetical 315.1 language (skills) 315.31 expressive 315.31 mixed receptive-expressive 315.32 mathematics 315.1 reading 315.00 phonological 315.39 written expression 315.2 motor 315.4