ICD-10-CM > S00-T88 > T36-T50 > T36 > T36.4 > T36.4X > T36.4X2 T36.4X2 Poisoning by tetracyclines, intentional self-harm Non-Billable/Non-Specific Codes T36.4X2A..., initial encounterT36.4X2D..., subsequent encounterT36.4X2S..., sequela