ICD-10-CM > Z00-Z99 > Z00-Z13 > Z03 > Z03.8 > Z03.82 Z03.82 Encounter for observation for suspected foreign body ruled out Non-Billable/Non-Specific Type 1 Excludes retained foreign body (Z18.-)retained foreign body in eyelid (H02.81)residual foreign body in soft tissue (M79.5) Type 2 Excludes confirmed foreign body ingestion or aspiration including:foreign body in alimentary tract (T18)foreign body in ear (T16)foreign body on external eye (T15)foreign body in respiratory tract (T17) Codes Z03.821Encounter for observation for suspected ingested foreign body ruled outZ03.822Encounter for observation for suspected aspirated (inhaled) foreign body ruled outZ03.823Encounter for observation for suspected inserted (injected) foreign body ruled out