2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Neurotic Disorders, Personality Disorders, And Other Nonpsychotic Mental Disorders 300-316 > Drug Dependence 304.* > 2006 ICD-9-CM Diagnosis 304.8 Combinations of drug dependence excluding opioid type drug View the most recent version of ICD-9-CM 304.8 304.8 is a non-specific code that cannot be used to specify a diagnosis 304.8 contains 4 index entries View the ICD-9-CM Volume 1 304.* hierarchy  Index entries containing 304.8: Dependence combination of drugs (excluding morphine or opioid type drug) NEC 304.8 morphine or opioid type drug with any other drug 304.7 drug NEC 304.9 combination (excluding morphine or opioid type drug) NEC 304.8 morphine or opioid type drug with any other drug 304.7 polysubstance 304.8 polysubstance 304.8