ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.1 > T43.1X > T43.1X4 T43.1X4 Poisoning by monoamine-oxidase-inhibitor antidepressants, undetermined Non-Billable/Non-Specific Codes T43.1X4A..., initial encounterT43.1X4D..., subsequent encounterT43.1X4S..., sequela