Table 1

Examples of ICD-10 codes indicating adverse drug events within each code category
Code Category Definition Number of codes in category Examples
Code Code description*
A1 The ICD-10 code description includes the phrase “induced by medication/drug.” 114 J70.2 Acute drug-induced interstitial lung disorders
A2 The ICD-10 code description includes the phrase “induced by medication or other causes.” 81 142.7 Cardiomyopathy due to drugs and other external agents
T88.7 Unspecified adverse event of drug or medicament
B1 The ICD-10 code dictionary includes the phrase “poisoning by medication.” 134   T36 Poisoning by systemic antibiotics
B2 The ICD-10 code dictionary includes the phrase “poisoning by or harmful use of medication or other causes.” 19   X44 Accidental poisoning by, and exposure to, other and unspecified drugs, medicaments and biological substances
C§ Adverse drug event deemed to be very likely although the ICD-10 code description does not refer to a drug. 32 L51.2 Toxic epidermal necrolysis
D§ Adverse drug event deemed to be likely although the ICD-10 code description does not refer to a drug. 86 N17 Acute renal failure with tubular necrosis
E§ Adverse drug event deemed to be possible although the ICD-10 code dictionary does not refer to a drug. 85 K25 Gastric ulcer
Y66 Non administration of surgical and medical care

*The code descriptions are from the ICD-10 coding dictionary [29].

§The likelihood of the ICD-10 code indicating an adverse drug event was adapted from Stausberg et al., [27,28] and where missing, was determined by two investigators who arrived at their ratings independently, and subsequently obtained consensus through discussion (CH and JS).

Hohl et al.

Hohl et al. BMC Health Services Research 2013 13:473   doi:10.1186/1472-6963-13-473

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