T41.3Poisoning by, adverse effect of and underdosing of local anesthetics

T41.3 is the ICD-10-CM diagnosis code for poisoning by, adverse effect of and underdosing of local anesthetics. It belongs to category T41 (poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases), 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 T41 (poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases), T41.3 is specifically for poisoning by, adverse effect of and underdosing of local anesthetics. Related codes cover inhaled anesthetics (T41.0), intravenous anesthetics (T41.1), other and unspecified general anesthetics (T41.2), unspecified anesthetic (T41.4) and therapeutic gases (T41.5).

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.

The conditions in its Excludes2 note aren't part of T41.3, but may be coded alongside it if the patient has both: poisoning by cocaine used as a central nervous system stimulant (T40.5X1-T40.5X4).

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