2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Neurotic Disorders, Personality Disorders, And Other Nonpsychotic Mental Disorders 300-316 > 2008 ICD-9-CM Diagnosis 312 Disturbance of conduct not elsewhere classified  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 312 can be accessed here. 312 is a non-specific code that cannot be used to specify a diagnosis ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 312 excludes: adjustment reaction with disturbance of conduct (309.3) drug dependence (304.0-304.9) dyssocial behavior without manifest psychiatric disorder (V71.01-V71.02) personality disorder with predominantly sociopathic or asocial manifestations (301.7) sexual deviations (302.0-302.9)