ICD-10-CM > S00-T88 > T36-T50 > T44 > T44.0 > T44.0X > T44.0X1 T44.0X1 Poisoning by anticholinesterase agents, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by anticholinesterase agents NOS Codes T44.0X1A..., initial encounterT44.0X1D..., subsequent encounterT44.0X1S..., sequela