T18Header code — not billable
Foreign body in alimentary tract
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T18
- Effective date
- October 1, 2026
Related codes in category T18
T18.0Foreign body in mouthT18.0XXAForeign body in mouth, initial encounterYesT18.0XXDForeign body in mouth, subsequent encounterYesT18.0XXSForeign body in mouth, sequelaYesT18.1Foreign body in esophagusT18.10Unspecified foreign body in esophagusT18.100Unsp fb in esophagus causing compression of tracheaT18.100AUnsp fb in esophagus causing compression of trachea, initYesT18.100DUnsp fb in esophagus causing compression of trachea, subsYesT18.100SUnsp fb in esophagus causing compression of trachea, sequelaYesT18.108Unspecified foreign body in esophagus causing other injuryT18.108AUnsp foreign body in esophagus causing oth injury, initYes
Frequently asked questions
What is ICD-10 code T18?
T18 is an ICD-10-CM diagnosis code for Foreign body in alimentary tract.
Is T18 a billable code?
No. T18 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is T18 in?
T18 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T18 become effective?
T18 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T18?
T18 belongs to category T18, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.