ICD 9 CM Codes

nondependent abuse of drugs (305.1-305.9)
The following fifth-digit subclassification is for use with category 304:
0 unspecified
1 continuous
2 episodic
3 in remission
304.0Opioid type dependence
304.1Sedative, hypnotic or anxiolytic dependence
304.2Cocaine dependence
304.3Cannabis dependence
304.4Amphetamine and other psychostimulant dependence
304.5Hallucinogen dependence
304.6Other specified drug dependence
304.7Combinations of opioid type drug with any other drug dependence
304.8Combinations of drug dependence excluding opioid type drug
304.9Unspecified drug dependence