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Table 1 Examples of ICD-10 codes indicating adverse drug events within each code category

From: Evaluating adverse drug event reporting in administrative data from emergency departments: a validation study

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

  1. *The code descriptions are from the ICD-10 coding dictionary [29].
  2. §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).