T43.1X6 - Underdosing of monoamine-oxidase-inhibitor antidepressants T43.1 - Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants T43.1X - Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants T43.1X6 - Underdosing of monoamine-oxidase-inhibitor antidepressants