ICD-10-CM > S00-T88 > T80-T88 > T81 > T81.5 > T81.50 > T81.503 T81.503 Unspecified complication of foreign body accidentally left in body following injection or immunization Non-Billable/Non-Specific Codes T81.503A..., initial encounterT81.503D..., subsequent encounterT81.503S..., sequela