ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.7 > T50.7X > T50.7X4 T50.7X4 Poisoning by analeptics and opioid receptor antagonists, undetermined Non-Billable/Non-Specific Codes T50.7X4A..., initial encounterT50.7X4D..., subsequent encounterT50.7X4S..., sequela