ICD-10-CM > S00-T88 > T80-T88 > T81 > T81.5 > T81.50 > T81.500 T81.500 Unspecified complication of foreign body accidentally left in body following surgical operation Non-Billable/Non-Specific Codes T81.500A..., initial encounterT81.500D..., subsequent encounterT81.500S..., sequela