ICD-10-CM > S00-T88 > T36-T50 > T36 > T36.2 > T36.2X > T36.2X4 T36.2X4 Poisoning by chloramphenicol group, undetermined Non-Billable/Non-Specific Codes T36.2X4A..., initial encounterT36.2X4D..., subsequent encounterT36.2X4S..., sequela