ICD-10-CM > S00-T88 > T36-T50 > T39 > T39.4 > T39.4X > T39.4X4 T39.4X4 Poisoning by antirheumatics, not elsewhere classified, undetermined Non-Billable/Non-Specific Codes T39.4X4A..., initial encounterT39.4X4D..., subsequent encounterT39.4X4S..., sequela