T18.9 Foreign body of alimentary tract, part unspecifiedNon-billable ICD-10-CM code.
Z03.82 Encounter for observation for suspected foreign body ruled out ("foreign body in alimentary tract (T18)")Z18 Retained foreign body fragments ("foreign body entering through orifice (T15-T19)")T18.5XXS Foreign body in anus and rectum, sequelaT18.8 Foreign body in other parts of alimentary tractT18.8XXA Foreign body in other parts of alimentary tract, initial encounterT18.8XXD Foreign body in other parts of alimentary tract, subsequent encounterT18.8XXS Foreign body in other parts of alimentary tract, sequelaT18.9 Foreign body of alimentary tract, part unspecified (this code)T18.9XXA Foreign body of alimentary tract, part unspecified, initial encounterT18.9XXD Foreign body of alimentary tract, part unspecified, subsequent encounterT18.9XXS Foreign body of alimentary tract, part unspecified, sequela