ICD-10-CM > S00-T88 > T36-T50 > T47 > T47.0 > T47.0X > T47.0X1 T47.0X1 Poisoning by histamine H2-receptor blockers, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by histamine H2-receptor blockers NOS Codes T47.0X1A..., initial encounterT47.0X1D..., subsequent encounterT47.0X1S..., sequela