T18: Foreign body in alimentary tract

Codes under T18 (Foreign body in alimentary tract). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
T18.0	Foreign body in mouth	—
T18.0XXA	Foreign body in mouth, initial encounter	✓
T18.0XXD	Foreign body in mouth, subsequent encounter	✓
T18.0XXS	Foreign body in mouth, sequela	✓
T18.1	Foreign body in esophagus	—
T18.2	Foreign body in stomach	—
T18.2XXA	Foreign body in stomach, initial encounter	✓
T18.2XXD	Foreign body in stomach, subsequent encounter	✓
T18.2XXS	Foreign body in stomach, sequela	✓
T18.3	Foreign body in small intestine	—
T18.3XXA	Foreign body in small intestine, initial encounter	✓
T18.3XXD	Foreign body in small intestine, subsequent encounter	✓
T18.3XXS	Foreign body in small intestine, sequela	✓
T18.4	Foreign body in colon	—
T18.4XXA	Foreign body in colon, initial encounter	✓
T18.4XXD	Foreign body in colon, subsequent encounter	✓
T18.4XXS	Foreign body in colon, sequela	✓
T18.5	Foreign body in anus and rectum	—
T18.5XXA	Foreign body in anus and rectum, initial encounter	✓
T18.5XXD	Foreign body in anus and rectum, subsequent encounter	✓
T18.5XXS	Foreign body in anus and rectum, sequela	✓
T18.8	Foreign body in other parts of alimentary tract	—
T18.8XXA	Foreign body in other parts of alimentary tract, initial encounter	✓
T18.8XXD	Foreign body in other parts of alimentary tract, subsequent encounter	✓
T18.8XXS	Foreign body in other parts of alimentary tract, sequela	✓
T18.9	Foreign body of alimentary tract, part unspecified	—
T18.9XXA	Foreign body of alimentary tract, part unspecified, initial encounter	✓
T18.9XXD	Foreign body of alimentary tract, part unspecified, subsequent encounter	✓
T18.9XXS	Foreign body of alimentary tract, part unspecified, sequela	✓
T18.10	Unspecified foreign body in esophagus	—
T18.11	Gastric contents in esophagus	—
T18.12	Food in esophagus	—
T18.19	Other foreign object in esophagus	—
T18.100	Unspecified foreign body in esophagus causing compression of trachea	—
T18.100A	Unspecified foreign body in esophagus causing compression of trachea, initial encounter	✓
T18.100D	Unspecified foreign body in esophagus causing compression of trachea, subsequent encounter	✓
T18.100S	Unspecified foreign body in esophagus causing compression of trachea, sequela	✓
T18.108	Unspecified foreign body in esophagus causing other injury	—
T18.108A	Unspecified foreign body in esophagus causing other injury, initial encounter	✓
T18.108D	Unspecified foreign body in esophagus causing other injury, subsequent encounter	✓
T18.108S	Unspecified foreign body in esophagus causing other injury, sequela	✓
T18.110	Gastric contents in esophagus causing compression of trachea	—
T18.110A	Gastric contents in esophagus causing compression of trachea, initial encounter	✓
T18.110D	Gastric contents in esophagus causing compression of trachea, subsequent encounter	✓
T18.110S	Gastric contents in esophagus causing compression of trachea, sequela	✓
T18.118	Gastric contents in esophagus causing other injury	—
T18.118A	Gastric contents in esophagus causing other injury, initial encounter	✓
T18.118D	Gastric contents in esophagus causing other injury, subsequent encounter	✓
T18.118S	Gastric contents in esophagus causing other injury, sequela	✓
T18.120	Food in esophagus causing compression of trachea	—
T18.120A	Food in esophagus causing compression of trachea, initial encounter	✓
T18.120D	Food in esophagus causing compression of trachea, subsequent encounter	✓
T18.120S	Food in esophagus causing compression of trachea, sequela	✓
T18.128	Food in esophagus causing other injury	—
T18.128A	Food in esophagus causing other injury, initial encounter	✓
T18.128D	Food in esophagus causing other injury, subsequent encounter	✓
T18.128S	Food in esophagus causing other injury, sequela	✓
T18.190	Other foreign object in esophagus causing compression of trachea	—
T18.190A	Other foreign object in esophagus causing compression of trachea, initial encounter	✓
T18.190D	Other foreign object in esophagus causing compression of trachea, subsequent encounter	✓
T18.190S	Other foreign object in esophagus causing compression of trachea, sequela	✓
T18.198	Other foreign object in esophagus causing other injury	—
T18.198A	Other foreign object in esophagus causing other injury, initial encounter	✓
T18.198D	Other foreign object in esophagus causing other injury, subsequent encounter	✓
T18.198S	Other foreign object in esophagus causing other injury, sequela	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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