Foreign body in alimentary tract
In Effects of foreign body entering through natural orifice (T15-T19), chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes
45 billable codes under T18: none are a CC or MCC; none map to an HCC.
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Instructional notes
Excludes2: not included here, code separately if applicable
- foreign body in pharynx (T17.2-)
Also applies, from Effects of foreign body entering through natural orifice (T15-T19)
These notes sit on T15-T19 and apply to every code under it, including T18.
Excludes2: not included here, code separately if applicable
Use additional code: add a second code for this, listed after this one
- code, if known, for foreign body entering into or through a natural orifice (W44.-)
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers 7th character use and coding of injuries, fractures, burns, drug and toxic effects, abuse and neglect, and complications of care (S00-T88).
- Application of 7th Characters in Chapter 19 (page 77)
- Coding of Injuries (page 78)
- Coding of Traumatic Fractures (page 79)
- Coding of Burns and Corrosions (page 80)
- Adverse Effects, Poisoning, Underdosing and Toxic Effects (page 82)
- Adult and child abuse, neglect and other maltreatment (page 85)
- Complications of care (page 85)
All codes under T18
T18 can't be used on a claim. Pick a billable code below; grey headings group them.
- T18.0Foreign body in mouth
- T18.0XXAForeign body in mouth, initial encounter
- T18.0XXDForeign body in mouth, subsequent encounter
- T18.0XXSForeign body in mouth, sequela
- T18.1Foreign body in esophagus
- T18.10Unspecified foreign body in esophagus
- T18.100Unspecified foreign body in esophagus causing compression of trachea
- T18.100AUnspecified foreign body in esophagus causing compression of trachea, initial encounter
- T18.100DUnspecified foreign body in esophagus causing compression of trachea, subsequent encounter
- T18.100SUnspecified foreign body in esophagus causing compression of trachea, sequela
- T18.108Unspecified foreign body in esophagus causing other injury
- T18.108AUnspecified foreign body in esophagus causing other injury, initial encounter
- T18.108DUnspecified foreign body in esophagus causing other injury, subsequent encounter
- T18.108SUnspecified foreign body in esophagus causing other injury, sequela
- T18.11Gastric contents in esophagus
- T18.110Gastric contents in esophagus causing compression of trachea
- T18.110AGastric contents in esophagus causing compression of trachea, initial encounter
- T18.110DGastric contents in esophagus causing compression of trachea, subsequent encounter
- T18.110SGastric contents in esophagus causing compression of trachea, sequela
- T18.118Gastric contents in esophagus causing other injury
- T18.118AGastric contents in esophagus causing other injury, initial encounter
- T18.118DGastric contents in esophagus causing other injury, subsequent encounter
- T18.118SGastric contents in esophagus causing other injury, sequela
- T18.12Food in esophagus
- T18.120Food in esophagus causing compression of trachea
- T18.120AFood in esophagus causing compression of trachea, initial encounter
- T18.120DFood in esophagus causing compression of trachea, subsequent encounter
- T18.120SFood in esophagus causing compression of trachea, sequela
- T18.128Food in esophagus causing other injury
- T18.128AFood in esophagus causing other injury, initial encounter
- T18.128DFood in esophagus causing other injury, subsequent encounter
- T18.128SFood in esophagus causing other injury, sequela
- T18.19Other foreign object in esophagus
- T18.190Other foreign object in esophagus causing compression of trachea
- T18.190AOther foreign object in esophagus causing compression of trachea, initial encounter
- T18.190DOther foreign object in esophagus causing compression of trachea, subsequent encounter
- T18.190SOther foreign object in esophagus causing compression of trachea, sequela
- T18.198Other foreign object in esophagus causing other injury
- T18.198AOther foreign object in esophagus causing other injury, initial encounter
- T18.198DOther foreign object in esophagus causing other injury, subsequent encounter
- T18.198SOther foreign object in esophagus causing other injury, sequela
- T18.2Foreign body in stomach
- T18.2XXAForeign body in stomach, initial encounter
- T18.2XXDForeign body in stomach, subsequent encounter
- T18.2XXSForeign body in stomach, sequela
- T18.3Foreign body in small intestine
- T18.3XXAForeign body in small intestine, initial encounter
- T18.3XXDForeign body in small intestine, subsequent encounter
- T18.3XXSForeign body in small intestine, sequela
- T18.4Foreign body in colon
- T18.4XXAForeign body in colon, initial encounter
- T18.4XXDForeign body in colon, subsequent encounter
- T18.4XXSForeign body in colon, sequela
- T18.5Foreign body in anus and rectum
- T18.5XXAForeign body in anus and rectum, initial encounter
- T18.5XXDForeign body in anus and rectum, subsequent encounter
- T18.5XXSForeign body in anus and rectum, sequela
- T18.8Foreign body in other parts of alimentary tract
- T18.8XXAForeign body in other parts of alimentary tract, initial encounter
- T18.8XXDForeign body in other parts of alimentary tract, subsequent encounter
- T18.8XXSForeign body in other parts of alimentary tract, sequela
- T18.9Foreign body of alimentary tract, part unspecified
- T18.9XXAForeign body of alimentary tract, part unspecified, initial encounter
- T18.9XXDForeign body of alimentary tract, part unspecified, subsequent encounter
- T18.9XXSForeign body of alimentary tract, part unspecified, sequela
T18 MS-DRGs
As the principal diagnosis, the billable codes under T18 group to these 7 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 913 Traumatic Injury with MCC (15 of 45 codes)
- DRG 914 Traumatic Injury without MCC (15 of 45 codes)
- DRG 949 Aftercare with CC/MCC (15 of 45 codes)
- DRG 950 Aftercare without CC/MCC (15 of 45 codes)
- DRG 393 Other Digestive System Diagnoses with MCC (14 of 45 codes)
- DRG 394 Other Digestive System Diagnoses with CC (14 of 45 codes)
- DRG 395 Other Digestive System Diagnoses without CC/MCC (14 of 45 codes)
Other codes that refer to T18
Notes on these codes point to T18.
- Z03.82 Excludes2: foreign body in alimentary tract (T18)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Foreign Bodies
If you've ever gotten a splinter or had sand in your eye, you've had experience with a foreign body. A foreign body is something that is stuck inside you but isn't supposed to be there. You may inhale or swallow a foreign body, or you may get one from an injury to almost any part of your body. Foreign bodies are more common in small children, who sometimes stick things in their mouths, ears, and noses.
Read more about foreign bodies on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.