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ICD-10-CM category

T18: Foreign body in alimentary tract

130 subcodes · 90 billable · Look up any code with the ICD-10 search

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.

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

Frequently asked questions

What is ICD-10-CM code T18?

T18 is an ICD-10-CM category covering Foreign body in alimentary tract. It contains 130 more specific diagnosis codes, 90 of which are billable.

Is T18 a billable code?

No — T18 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example T18.0 — Foreign body in mouth). 90 of the 130 codes under T18 are billable.

What codes fall under T18?

T18 includes T18.0, T18.0, T18.0XXA, T18.0XXA, T18.0XXD, plus 125 more. See the full list with descriptions and billable status above.

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

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

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