T18.0
Foreign body in mouth
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 3 never code together
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 3
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 1
Alongside this code 7 same parent — T18
T18.1 Foreign body in esophagus category T18.2 Foreign body in stomach category T18.3 Foreign body in small intestine category T18.4 Foreign body in colon category T18.5 Foreign body in anus and rectum category T18.8 Foreign body in other parts of alimentary tract category T18.9 Foreign body of alimentary tract, part unspecified category
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.