Chapter XIX
Injury, poisoning and certain other consequences of external causes
(S00-T98)

Injuries to the head
(S00-S09)

Includes: injuries of:
· ear
· eye
· face [any part]
· gum
· jaw
· temporomandibular joint area
· oral cavity
· palate
· periocular area
· scalp
· tongue
· tooth
Excludes: burns and corrosions ( T20-T32 )
effects of foreign body:
· in:
  · ear ( T16 )
  · larynx ( T17.3 )
  · mouth ( T18.0 )
  · nose ( T17.0-T17.1 )
  · pharynx ( T17.2 )
· on external eye ( T15.- )
frostbite ( T33-T35 )
insect bite or sting, venomous ( T63.4 )

S00 Superficial injury of head
Excludes: cerebral contusion (diffuse) ( S06.2 )
· focal ( S06.3 )
injury of eye and orbit ( S05.- )
S00.0 Superficial injury of scalp
S00.1 Contusion of eyelid and periocular area
Black eye
Excludes: contusion of eyeball and orbital tissues ( S05.1 )
S00.2 Other superficial injuries of eyelid and periocular area
Excludes: superficial injury of conjunctiva and cornea ( S05.0 )
S00.3 Superficial injury of nose
S00.4 Superficial injury of ear
S00.5 Superficial injury of lip and oral cavity
S00.7 Multiple superficial injuries of head
S00.8 Superficial injury of other parts of head
S00.9 Superficial injury of head, part unspecified

S01 Open wound of head
Excludes: decapitation ( S18 )
injury of eye and orbit ( S05.- )
traumatic amputation of part of head ( S08.- )
S01.0 Open wound of scalp
Excludes: avulsion of scalp ( S08.0 )
S01.1 Open wound of eyelid and periocular area
Open wound of eyelid and periocular area with or without involvement of lacrimal passages
S01.2 Open wound of nose
S01.3 Open wound of ear
S01.4 Open wound of cheek and temporomandibular area
S01.5 Open wound of lip and oral cavity
Excludes: tooth:
· dislocation ( S03.2 )
· fracture ( S02.5 )
S01.7 Multiple open wounds of head
S01.8 Open wound of other parts of head
S01.9 Open wound of head, part unspecified

S02 Fracture of skull and facial bones
Note: For primary coding of fracture of skull and facial bones with associated intracranial injury, reference should be made to the morbidity or mortality coding rules and guidelines in Volume 2.
The following subdivisions are provided for optional use in a supplementary character position where it is not possible or not desired to use multiple coding to identify fracture and open wound; a fracture not indicated as closed or open should be classified as closed.
0 closed
1 open
S02.0 Fracture of vault of skull
Frontal bone
Parietal bone
S02.1 Fracture of base of skull
Fossa:
· anterior
· middle
· posterior
Occiput
Orbital roof
Sinus:
· ethmoid
· frontal
Sphenoid
Temporal bone
Excludes: orbit NOS ( S02.8 )
orbital floor ( S02.3 )
S02.2 Fracture of nasal bones
S02.3 Fracture of orbital floor
Excludes: orbit NOS ( S02.8 )
orbital roof ( S02.1 )
S02.4 Fracture of malar and maxillary bones
Superior maxilla
Upper jaw (bone)
Zygoma
S02.5 Fracture of tooth
Broken tooth
S02.6 Fracture of mandible
Lower jaw (bone)
S02.7 Multiple fractures involving skull and facial bones
S02.8 Fractures of other skull and facial bones
Alveolus
Orbit NOS
Palate
Excludes: orbital:
· floor ( S02.3 )
· roof ( S02.1 )
S02.9 Fracture of skull and facial bones, part unspecified

S03 Dislocation, sprain and strain of joints and ligaments of head
S03.0 Dislocation of jaw
Jaw (cartilage)(meniscus)
Mandible
Temporomandibular (joint)
S03.1 Dislocation of septal cartilage of nose
S03.2 Dislocation of tooth
S03.3 Dislocation of other and unspecified parts of head
S03.4 Sprain and strain of jaw
Temporomandibular (joint)(ligament)
S03.5 Sprain and strain of joints and ligaments of other and unspecified parts of head

S04 Injury of cranial nerves
S04.0 Injury of optic nerve and pathways
Optic chiasm
2nd cranial nerve
Visual cortex
S04.1 Injury of oculomotor nerve
3rd cranial nerve
S04.2 Injury of trochlear nerve
4th cranial nerve
S04.3 Injury of trigeminal nerve
5th cranial nerve
S04.4 Injury of abducent nerve
6th cranial nerve
S04.5 Injury of facial nerve
7th cranial nerve
S04.6 Injury of acoustic nerve
Auditory nerve
8th cranial nerve
S04.7 Injury of accessory nerve
11th cranial nerve
S04.8 Injury of other cranial nerves
Glossopharyngeal [9th] nerve
Hypoglossal [12th] nerve
Olfactory [1st] nerve
Vagus [10th] nerve
S04.9 Injury of unspecified cranial nerve

S05 Injury of eye and orbit
Excludes: injury of:
· oculomotor [3rd] nerve ( S04.1 )
· optic [2nd] nerve ( S04.0 )
open wound of eyelid and periocular area ( S01.1 )
orbital bone fracture ( S02.1 , S02.3 , S02.8 )
superficial injury of eyelid ( S00.1-S00.2 )
S05.0 Injury of conjunctiva and corneal abrasion without mention of foreign body
Excludes: foreign body in:
· conjunctival sac ( T15.1 )
· cornea ( T15.0 )
S05.1 Contusion of eyeball and orbital tissues
Traumatic hyphaema
Excludes: black eye ( S00.1 )
contusion of eyelid and periocular area ( S00.1 )
S05.2 Ocular laceration and rupture with prolapse or loss of intraocular tissue
S05.3 Ocular laceration without prolapse or loss of intraocular tissue
Laceration of eye NOS
S05.4 Penetrating wound of orbit with or without foreign body
Excludes: retained (old) foreign body following penetrating wound of orbit ( H05.5 )
S05.5 Penetrating wound of eyeball with foreign body
Excludes: retained (old) intraocular foreign body ( H44.6-H44.7 )
S05.6 Penetrating wound of eyeball without foreign body
Ocular penetration NOS
S05.7 Avulsion of eye
Traumatic enucleation
S05.8 Other injuries of eye and orbit
Lacrimal duct injury
S05.9 Injury of eye and orbit, unspecified
Injury of eye NOS

S06 Intracranial injury
Note: For primary coding of intracranial injuries with associated fractures, reference should be made to the morbidity or mortality coding rules and guidelines in Volume 2.
The following subdivisions are provided for optional use in a supplementary character position where it is not possible or not desired to use multiple coding to identify intracranial injury and open wound:
0 without open intracranial wound
1 with open intracranial wound
S06.0 Concussion
Commotio cerebri
S06.1 Traumatic cerebral oedema
S06.2 Diffuse brain injury
Cerebral:
· contusion NOS
· laceration NOS
Traumatic compression of brain NOS
S06.3 Focal brain injury
Focal:
· cerebral:
  · contusion
  · laceration
· traumatic intracerebral haemorrhage
S06.4 Epidural haemorrhage
Extradural haemorrhage (traumatic)
S06.5 Traumatic subdural haemorrhage
S06.6 Traumatic subarachnoid haemorrhage
S06.7 Intracranial injury with prolonged coma
S06.8 Other intracranial injuries
Traumatic haemorrhage:
· cerebellar
· intracranial NOS
S06.9 Intracranial injury, unspecified
Brain injury NOS
Excludes: head injury NOS ( S09.9 )

S07 Crushing injury of head
S07.0 Crushing injury of face
S07.1 Crushing injury of skull
S07.8 Crushing injury of other parts of head
S07.9 Crushing injury of head, part unspecified

S08 Traumatic amputation of part of head
S08.0 Avulsion of scalp
S08.1 Traumatic amputation of ear
S08.8 Traumatic amputation of other parts of head
S08.9 Traumatic amputation of unspecified part of head
Excludes: decapitation ( S18 )

S09 Other and unspecified injuries of head
S09.0 Injury of blood vessels of head, not elsewhere classified
Excludes: injury of:
· cerebral blood vessels ( S06.- )
· precerebral blood vessels ( S15.- )
S09.1 Injury of muscle and tendon of head
S09.2 Traumatic rupture of ear drum
S09.7 Multiple injuries of head
Injuries classifiable to more than one of the categories S00-S09.2
S09.8 Other specified injuries of head
S09.9 Unspecified injury of head
Injury of:
· face NOS
· ear NOS
· nose NOS