T18.9

Foreign body of alimentary tract, part unspecified

Requires 7th character

T18.9 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Applicable to

  • Foreign body in digestive system NOS
  • Swallowed foreign body NOS

Includes (from T18)

  • Note: 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
  • Note: 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.

Excludes2

Not included here — may be reported together when both conditions exist.

  • birth trauma (P10-P15) (from T18)
  • obstetric trauma (O70-O71) (from T18)
  • foreign body accidentally left in operation wound (T81.5-) (from T18)
  • foreign body in penetrating wound - See open wound by body region (from T18)
  • residual foreign body in soft tissue (M79.5) (from T18)
  • splinter, without open wound - See superficial injury by body region (from T18)
  • foreign body in pharynx (T17.2-) (from T18)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from T18)
  • code, if known, for foreign body entering into or through a natural orifice (W44.-) (from T18)

7th character

This code requires a 7th character (defined at T18). Use the placeholder "X" for missing positions.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Also known as

  • Foreign body in digestive system NOS
  • Swallowed foreign body NOS
  • Bezoar
  • Foreign body, alimentary tract
  • Foreign body, entering through orifice, alimentary canal
  • Foreign body, entering through orifice, digestive organ or tract NOS
  • Foreign body, entering through orifice, gastrointestinal tract
  • Foreign body, ingestion, ingested NOS
  • Foreign body, swallowed
  • Phytobezoar
  • Trichobezoar
  • Trichophytobezoar

Parent code

  • T18Foreign body in alimentary tractNeeds 7th char

More specific codes T18.9

  • T18.9XXAForeign body of alimentary tract, part unspecified, initial encounterBillable
  • T18.9XXDForeign body of alimentary tract, part unspecified, subsequent encounterBillable
  • T18.9XXSForeign body of alimentary tract, part unspecified, sequelaBillable

Related codes

  • T18.0Foreign body in mouthNeeds 7th char
  • T18.1Foreign body in esophagusNeeds 7th char
  • T18.2Foreign body in stomachNeeds 7th char
  • T18.3Foreign body in small intestineNeeds 7th char
  • T18.4Foreign body in colonNeeds 7th char
  • T18.5Foreign body in anus and rectumNeeds 7th char
  • T18.8Foreign body in other parts of alimentary tractNeeds 7th char

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