NA06.5

ICD-11 MMS 2026-01

Trauma to the iris sphincter

Description

This refers to trauma to the muscle in the part of the eye called the iris. It encircles the pupil of the iris, appropriate to its function as a constrictor of the pupil.

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

  • Trauma to the iris sphincter
  • Trauma to the iris sphincter, post surgery

Exclusions from above levels

  • NA00.1Z – superficial injury of eyelid
  • NA02.2 – Orbital fracture
  • NA04.10 – Injury of optic nerve, unilateral
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  • NA04.2 – Injury of oculomotor nerve
  • http://id.who.int/icd/entity/152692065 – Frostbite
  • http://id.who.int/icd/entity/163532889 – Burns
  • ND70 – Foreign body on external eye
  • 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

  • NA06.0 – Eyelid trauma
  • NA06.1 – Penetrating wound of orbit with or without foreign body
  • NA06.2 – Retained foreign body following penetrating wound of orbit
  • NA06.3 – Traumatic orbital haemorrhage
  • NA06.4 – Injury of conjunctiva or corneal abrasion without mention of foreign body
  • NA06.6 – Traumatic injuries of the retina
  • NA06.7 – Traumatic retinal haemorrhage
  • NA06.8 – Traumatic injury to eyeball
  • NA06.9 – Contusion of eyeball or orbital tissues
  • NA06.A – Injury of lens
  • NA06.Y – Other specified injury of eye or orbit
  • NA06.Z – Injury of eye or orbit, unspecified

Foundation entity

Trauma to the iris sphincter – http://id.who.int/icd/entity/786137763

Allowed postcoordination axes

Part of: NA06: Injury of eye or orbit › 22: Injury, poisoning or certain other consequences of external causes