Protocol: changes in rates of opioid overdose and poisoning events in an integrated health system following the introduction of a formulation of OxyContin® with abuse-deterrent properties

Table 1 ICD poisoning codes used to identify overdoses^a

	ICD 9 code	ICD 10 code
Poisoning by opium (alkaloids) unspecified	965.00
Poisoning by heroin	965.01
Poisoning by methadone	965.02
Poisoning by other opiates and related narcotics	965.09
Accidental poisoning by heroin	E850.0
Accidental poisoning by methadone	E850.1
Accidental poisoning by other opiates and related narcotics	E850.2
COD: Poisoning by opiates and related narcotics	9650^b
COD: Poisoning by opium		T40.0
COD: Poisoning by heroin		T40.1
COD: Poisoning by other opioids		T40.2
COD: Poisoning by methadone		T40.3
COD: Poisoning by other synthetic narcotic		T40.4
COD: Accidental poisoning by and exposure to narcotics and psychodysleptics, not elsewhere classified		X42
COD: Intentional self-poisoning by and exposure to narcotics and psychodysleptics, not elsewhere classified		X62
COD: Undetermined poisoning by and exposure to narcotics and psychodysleptics, not elsewhere classified		Y12

^a Case definition is met when a person has any diagnostic code from the Case 1 list
^b For the year of 1998 only; COD codes changed to ICD 10 in 1999; ICD 9 codes used for death data during 1998 did not include the fifth digit, which is why this particular code is four digits and without a decimal

ISSN: 2050-6511