T46.2Poisoning by, adverse effect of and underdosing of other antidysrhythmic drugs, not elsewhere classified

T46.2 is the ICD-10-CM diagnosis code for poisoning by, adverse effect of and underdosing of other antidysrhythmic drugs, not elsewhere classified. It belongs to category T46 (poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system), 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 1 subcodes must be used instead.

Within T46, choose T46.2 (other antidysrhythmic drugs, not elsewhere classified) only when documentation doesn't support a more specific option: cardiac-stimulant glycosides and drugs of similar action (T46.0), calcium-channel blockers (T46.1), coronary vasodilators (T46.3), angiotensin-converting-enzyme inhibitors (T46.4), other antihypertensive drugs (T46.5), antihyperlipidemic and antiarteriosclerotic drugs (T46.6), peripheral vasodilators (T46.7), antivaricose drugs, including sclerosing agents (T46.8) 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 T46.2 together with the conditions in its Excludes1 note: poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists (T44.7-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.