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 315.5 Mixed development disorder View the most recent version of ICD-9-CM 315.5 315.5 is a specific code that can be used to specify a diagnosis 315.5 contains 2 index entries View the ICD-9-CM Volume 1 315.* hierarchy  Index entries containing 315.5: Development delayed (see also Delay, development) 783.40 mixed skills 315.5 Disorder - see also Disease development, specific 315.9 mixed 315.5