ICD-10-CM > S00-T88 > T36-T50 > T44 > T44.0 > T44.0X > T44.0X5 T44.0X5 Adverse effect of anticholinesterase agents Non-Billable/Non-Specific Codes T44.0X5A..., initial encounterT44.0X5D..., subsequent encounterT44.0X5S..., sequela