Table 1:
ICD9 Codes for Secondary Alcohol and Drug Related Diagnoses
| Category | ICD9 Codes |
| Alcohol | 3050, 30500, 30501, 30502, 3030, 30300, 30301, 30302, 3039, 30390, 30391, 30392, 291, 2910, 2911, 2912, 2913, 2914, 2915, 2918, 29181, 29182, 29189, 2919 |
| Opioid | 304, 3040, 30400, 30401, 30402, 3055, 30550, 30551, 30552 |
| Sedative Hypnotic | 3041, 30410, 30411, 30412, 3054, 30540, 30541, 30542 |
| Cocaine | 3042, 30420, 30421, 30422, 3056, 30560, 30561, 30562 |
| Cannabis | 3043, 30430, 30431, 30432, 3052, 30520, 30521, 30522 |
| Amphetamine | 3044, 30440, 30441, 30442, 3057, 30570, |
| Stimulant | 30571, 30572 |
| Hallucinogen | 3045, 30450, 30451, 30452, 3053, 30530, 30531, 30532 |
| Drug Combination | 3047, 30470, 30471, 30472, 3048, 30480, 30481, 30482 |
| Antidepressant | 3058, 30580, 30581, 30582 |
| Other Unspecified | 3049, 30490, 30491, 30492, 3059, 30590, |
| Drug | 30591, 30592, 3046, 30460, 30461, 30462 |
| Drug-Related Mental | 292, 2920, 2921, 29211, 29212, 2922, 2928, |
| Disorder | 29281, 29282, 29283, 29284, 29285, 29289, 2929 |