ICD-10-CM > S00-T88 > T36-T50 > T46 > T46.4 > T46.4X > T46.4X2 T46.4X2 Poisoning by angiotensin-converting-enzyme inhibitors, intentional self-harm Non-Billable/Non-Specific Codes T46.4X2A..., initial encounterT46.4X2D..., subsequent encounterT46.4X2S..., sequela