T40.425Adverse effect of tramadol

T40.425 is the ICD-10-CM diagnosis code for adverse effect of tramadol. It belongs to category T40 (poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]), block T36-T50 (poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within T40.42 (poisoning by, adverse effect of and underdosing of tramadol), T40.425 is specifically for adverse effect of tramadol. Related codes cover poisoning by tramadol, accidental (unintentional) (T40.421), poisoning by tramadol, intentional self-harm (T40.422), poisoning by tramadol, assault (T40.423), poisoning by tramadol, undetermined (T40.424) and underdosing of tramadol (T40.426).

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.

It was added in FY2021, effective October 1, 2020.