ICD-10-CM > S00-T88 > T80-T88 > T81 > T81.6 > T81.60 T81.60 Unspecified acute reaction to foreign substance accidentally left during a procedure Non-Billable/Non-Specific Codes T81.60XA..., initial encounterT81.60XD..., subsequent encounterT81.60XS..., sequela