Table 1.

Distribution of ICD-10-GM codes considered indicative of an adverse drug event (ADE)

Category	Definition	Number of codes	Proportion of all codes
A.1	Caused by a drug	104	20.6%
A.2	Caused by a drug or other substance	78	15.4%
B.1	Poisoning by drug	133	26.3%
B.2	Poisoning by or harmful use of a drug or other substance	15	3.0%
C	ADE very likely	30	5.9%
D	ADE likely	83	16.4%
E	ADE possible	62	12.3%
Total		505	100.0%