ICD-10-CM > S00-T88 > T36-T50 > T36 > T36.8 > T36.8X > T36.8X4 T36.8X4 Poisoning by other systemic antibiotics, undetermined Non-Billable/Non-Specific Codes T36.8X4A..., initial encounterT36.8X4D..., subsequent encounterT36.8X4S..., sequela