NA03.0

ICD-11 MMS 2026-01

Dislocation of jaw

Description

Displacement of the mandible, the largest and strongest bone of the face constituting the lower jaw. Dislocation of the temporomandibular joint is a painful condition that occurs when the mandibular condyle becomes fixed in the anterosuperior aspect of the articular eminence. TMJ dislocation is due to either trauma or, more commonly, excessive opening of the mandible. Spasm of the masseter, temporalis, and internal pterygoid muscles results in trismus, preventing return of the condyle to the temporal fossa.

Coding note from above levels

This Block includes the following: • 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

Index terms

  • Dislocation of jaw
  • dislocation of TMJ - [temporomandibular joint]
  • dislocation of inferior maxilla
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  • dislocation of mandible
  • dislocation of temporomandibular joint
  • pseudo-dislocation of the TMJ (trauma)
  • temporomandibular dislocation
  • traumatic dislocation of temporomandibular joint
  • Recurrent dislocation of the jaw
  • habitual dislocation of jaw
  • Sequelae of dislocation of jaw

Excludes

  • DA0E.8 – disc displacement (internal derangement of the TMJ)

Exclusions from above levels

  • http://id.who.int/icd/entity/152692065 – Frostbite
  • http://id.who.int/icd/entity/163532889 – Burns
  • ND70 – Foreign body on external eye
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  • ND71 – Foreign body in ear
  • ND72.1 – Foreign body in nostril
  • ND72.2 – Foreign body in pharynx
  • ND72.3 – Foreign body in larynx
  • ND73.0 – Foreign body in mouth
  • FB80.7 – Malunion of fracture
  • FB80.8 – Nonunion of fracture
  • FB80.A – Stress fracture, not elsewhere classified
  • FB80.B – Pathological fracture
  • http://id.who.int/icd/entity/624443803 – Birth injury
  • JB0A – Certain specified obstetric trauma

Sibling codes

  • NA03.1 – Dislocation of septal cartilage of nose
  • NA03.3 – Strain or sprain of jaw
  • NA03.Y – Dislocation or sprain of other specified joints or ligaments of head
  • NA03.Z – Dislocation or strain or sprain of joints or ligaments of head, unspecified

Foundation entity

Dislocation of jaw – http://id.who.int/icd/entity/2063689880

Allowed postcoordination axes

Part of: NA03: Dislocation or strain or sprain of joints or ligaments of head › 22: Injury, poisoning or certain other consequences of external causes