ICD-10-CM > S00-T88 > T36-T50 > T36 > T36.4 > T36.4X > T36.4X1 T36.4X1 Poisoning by tetracyclines, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by tetracyclines NOS Codes T36.4X1A..., initial encounterT36.4X1D..., subsequent encounterT36.4X1S..., sequela