ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.4 > T40.42 > T40.422 T40.422 Poisoning by tramadol, intentional self-harm Non-Billable/Non-Specific Codes T40.422A..., initial encounterT40.422D..., subsequent encounterT40.422S..., sequela