S04 Injury of cranial nerve

Category / Non-billable header 52 subcodes

Block: Injuries to the head (S00-S09)

Includes

  • The selection of side should be based on the side of the body being affected

Code Also

  • any associated:
  • open wound of head (S01.-)
  • skull fracture (S02.-)

Code First

  • any associated intracranial injury (S06.-)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
S04..0 Injury of optic nerve and pathways No
S04..01 Injury of optic nerve No
S04..011 Injury of optic nerve, right eye No
S04..012 Injury of optic nerve, left eye No
S04..019 Injury of optic nerve, unspecified eye No
S04..02 Injury of optic chiasm No
S04..03 Injury of optic tract and pathways No
S04..031 Injury of optic tract and pathways, right side No
S04..032 Injury of optic tract and pathways, left side No
S04..039 Injury of optic tract and pathways, unspecified side No
S04..04 Injury of visual cortex No
S04..041 Injury of visual cortex, right side No
S04..042 Injury of visual cortex, left side No
S04..049 Injury of visual cortex, unspecified side No
S04..1 Injury of oculomotor nerve No
S04..10 Injury of oculomotor nerve, unspecified side No
S04..11 Injury of oculomotor nerve, right side No
S04..12 Injury of oculomotor nerve, left side No
S04..2 Injury of trochlear nerve No
S04..20 Injury of trochlear nerve, unspecified side No
S04..21 Injury of trochlear nerve, right side No
S04..22 Injury of trochlear nerve, left side No
S04..3 Injury of trigeminal nerve No
S04..30 Injury of trigeminal nerve, unspecified side No
S04..31 Injury of trigeminal nerve, right side No
S04..32 Injury of trigeminal nerve, left side No
S04..4 Injury of abducent nerve No
S04..40 Injury of abducent nerve, unspecified side No
S04..41 Injury of abducent nerve, right side No
S04..42 Injury of abducent nerve, left side No
S04..5 Injury of facial nerve No
S04..50 Injury of facial nerve, unspecified side No
S04..51 Injury of facial nerve, right side No
S04..52 Injury of facial nerve, left side No
S04..6 Injury of acoustic nerve No
S04..60 Injury of acoustic nerve, unspecified side No
S04..61 Injury of acoustic nerve, right side No
S04..62 Injury of acoustic nerve, left side No
S04..7 Injury of accessory nerve No
S04..70 Injury of accessory nerve, unspecified side No
S04..71 Injury of accessory nerve, right side No
S04..72 Injury of accessory nerve, left side No
S04..8 Injury of other cranial nerves No
S04..81 Injury of olfactory [1st ] nerve No
S04..811 Injury of olfactory [1st ] nerve, right side No
S04..812 Injury of olfactory [1st ] nerve, left side No
S04..819 Injury of olfactory [1st ] nerve, unspecified side No
S04..89 Injury of other cranial nerves No
S04..891 Injury of other cranial nerves, right side No
S04..892 Injury of other cranial nerves, left side No
S04..899 Injury of other cranial nerves, unspecified side No
S04..9 Injury of unspecified cranial nerve No

Last reviewed: September 2026