ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.2 > T43.22 > T43.221 T43.221 Poisoning by selective serotonin reuptake inhibitors, accidental (unintentional) Non-Billable/Non-Specific Codes T43.221A..., initial encounterT43.221D..., subsequent encounterT43.221S..., sequela