ICD-10-CM 2027
ICD-10 code for drugs and medicaments effect
From the official ICD-10-CM alphabetic index entry “Effect, adverse › drugs and medicaments”. Page updated September 29, 2026.
About coding drugs and medicaments effect
The ICD-10-CM code for drugs and medicaments effect is T88.7 (Unspecified adverse effect of drug or medicament).
Within T88, choose T88.7 (Unspecified adverse effect of drug or medicament) only when documentation doesn't support a more specific option: infection following immunization (T88.0), other complications following immunization, not elsewhere classified (T88.1), shock due to anesthesia (T88.2), malignant hyperthermia due to anesthesia (T88.3), failed or difficult intubation (T88.4), other complications of anesthesia (T88.5), anaphylactic reaction due to adverse effect of correct drug or medicament properly administered (T88.6), other specified complications of surgical and medical care, not elsewhere classified (T88.8) and 1 more.
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
Don't report T88.7 together with the conditions in its Excludes1 note: specified adverse effects of drugs and medicaments (A00-R94 and T80-T88.6, T88.8).
More specific drugs and medicaments effect codes (official index)
- specified drug
- specified effect - code to condition