ICD-10-CM > S00-T88 > T36-T50 > T44 > T44.7 > T44.7X > T44.7X4 T44.7X4 Poisoning by beta-adrenoreceptor antagonists, undetermined Non-Billable/Non-Specific Codes T44.7X4A..., initial encounterT44.7X4D..., subsequent encounterT44.7X4S..., sequela