Table 7.

ICD9-CM diagnosis codes indicating potential adverse effects for medications used in a therapeutically appropriate manner

	Code	Diagnosis
A. Opioid or unspecified analgesic
1.	E935.0	Analgesics, antipyretics, and antirheumatics, heroin
2.	E935.1	Analgesics, antipyretics, and antirheumatics, methadone
3.	E935.2	Analgesics, antipyretics, and antirheumatics, other opiates and related narcotics
4.	E935.8	Analgesics, antipyretics, and antirheumatics, pentazocine
5.	E935.9	Analgesics, antipyretics, and antirheumatics, unspecified analgesic or antipyretic
B. Other specified medication. For ranges, code only qualifies if not otherwise listed (in A, C)
6.	E930–E947.9
C. Unspecified medication
7.	693.0	Dermatitis due to substances taken internally, drugs and medications
8.	909.5	Late effect of adverse effect of drug, medicinal or biological substance
9.	995.2	Other and unspecified adverse effect of drug, medicinal and biological substance (due) to correct medicinal substance properly administered
10.	E947.9	Unspecified drug or medicinal substance

We exclude dermatitis (692.3, topical) as no topical drugs are included in the study.