Table 6.
Diagnoses and other variables tested for identifying substance abuse involvement in opioid‐related overdoses
| Diagnoses and Other Variables | ICD‐9 and ICD‐10 Codes |
|---|---|
| Poisoning by heroin | 965.01 |
| Accidental poisoning by heroin | E850.0 |
| Poisoning by heroin | T40.1(COD) |
| Poisoning by opium (alkaloids), unspecified | 965.00 |
| Poisoning by methadone | 965.02 |
| Poisoning by other opiates/narcotics | 965.09 |
| Opioid dependence | 304.00–304.03, 304.70–304.72 |
| Opioid abuse | 305.50–305.53 |
| Drug use disorders | 292.x, 304.x, 305.2–305.9 |
| Alcohol use disorders | 291.x, 303.x, 305.0 |
| Tobacco use disorders | 305.1, 649.0, 989.84, V15.82 |
| Count of unique opioid prescribers in the 2 years prior to event | n/a |
| Count of early ER/LA opioid dispenses in the 2 years prior to event (early refill defined as two consecutive fills of an ER/LA where the number of days between prescriptions was less than or equal to 85% of the days' supply in the first prescription) | n/a |
| Count of early IR opioid dispenses in 2 years prior to the event | n/a |
| Medicaid/Medicare dual eligibility | n/a |
Note. COD: cause of death; ER/LA: extended‐release/long‐acting; ICD‐9/10: International Classification of Diseases, Ninth/Tenth Revision.