ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.3 > T50.3X > T50.3X4 T50.3X4 Poisoning by electrolytic, caloric and water-balance agents, undetermined Non-Billable/Non-Specific Codes T50.3X4A..., initial encounterT50.3X4D..., subsequent encounterT50.3X4S..., sequela