S00.542

External constriction of oral cavity

Requires 7th character

S00.542 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Includes (from S00)

  • injuries of ear
  • injuries of eye
  • injuries of face [any part]
  • injuries of gum
  • injuries of jaw
  • injuries of oral cavity
  • injuries of palate
  • injuries of periocular area
  • injuries of scalp
  • injuries of temporomandibular joint area
  • injuries of tongue
  • injuries of tooth
  • 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.

Excludes1

Not coded here — never report together with this code.

  • diffuse cerebral contusion (S06.2-) (from S00)
  • focal cerebral contusion (S06.3-) (from S00)
  • injury of eye and orbit (S05.-) (from S00)
  • open wound of head (S01.-) (from S00)

Excludes2

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

  • birth trauma (P10-P15) (from S00)
  • obstetric trauma (O70-O71) (from S00)
  • burns and corrosions (T20-T32) (from S00)
  • effects of foreign body in ear (T16) (from S00)
  • effects of foreign body in larynx (T17.3) (from S00)
  • effects of foreign body in mouth NOS (T18.0) (from S00)
  • effects of foreign body in nose (T17.0-T17.1) (from S00)
  • effects of foreign body in pharynx (T17.2) (from S00)
  • effects of foreign body on external eye (T15.-) (from S00)
  • frostbite (T33-T34) (from S00)
  • insect bite or sting, venomous (T63.4) (from S00)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from S00)

Code also

An additional code may be needed.

  • for any associated infection (from S00)

7th character

This code requires a 7th character (defined at S00). Use the placeholder "X" for missing positions.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Also known as

  • Constriction, external, alveolar process
  • Constriction, external, cheek, internal
  • Constriction, external, gum
  • Constriction, external, head, oral cavity
  • Constriction, external, mouth
  • Constriction, external, oral cavity
  • Constriction, external, palate
  • Constriction, external, tongue
  • Constriction, external, uvula

Parent code

  • S00.54External constriction of lip and oral cavityNeeds 7th char

More specific codes S00.542

  • S00.542AExternal constriction of oral cavity, initial encounterBillable
  • S00.542DExternal constriction of oral cavity, subsequent encounterBillable
  • S00.542SExternal constriction of oral cavity, sequelaBillable

Related codes

  • S00.541External constriction of lipNeeds 7th char

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