All ICD10 Codes

S04

Non-Billable
ChapterS00–T88
Rankcategory
Official Description

Injury of cranial nerve

Use a more specific code (1 billable, 9 non-billable)
S04.0Injury of optic nerve and pathwayshas subcodesS04.1Injury of oculomotor nervehas subcodesS04.2Injury of trochlear nervehas subcodesS04.3Injury of trigeminal nervehas subcodesS04.4Injury of abducent nervehas subcodesS04.5Injury of facial nervehas subcodesS04.6Injury of acoustic nervehas subcodesS04.7Injury of accessory nervehas subcodesS04.8Injury of other cranial nerveshas subcodesS04.9Injury of unspecified cranial nerve
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

CH19 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)

S00-S09 Parent Instructions

Includes
  • 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
Excludes2(Not included here. Code separately if applicable.)
  • burns and corrosions (T20-T32)
  • effects of foreign body in ear (T16)
  • effects of foreign body in larynx (T17.3)
  • effects of foreign body in mouth NOS (T18.0)
  • effects of foreign body in nose (T17.0-T17.1)
  • effects of foreign body in pharynx (T17.2)
  • effects of foreign body on external eye (T15.-)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
Code Also
  • for any associated infection

Instructional Notes

Includes
  • The selection of side should be based on the side of the body being affected
Code First
  • any associated intracranial injury (S06.-)
Code Also
  • any associated:
  • open wound of head (S01.-)
  • skull fracture (S02.-)

Clinical Hierarchy

BillableHas subcodes
CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
S00-S09Injuries to the head (S00-S09)
S04Injury of cranial nerveNot billable
S04.0Injury of optic nerve and pathwaysSubcodes
S04.1Injury of oculomotor nerveSubcodes
S04.2Injury of trochlear nerveSubcodes
S04.3Injury of trigeminal nerveSubcodes
S04.4Injury of abducent nerveSubcodes
S04.5Injury of facial nerveSubcodes
S04.6Injury of acoustic nerveSubcodes
S04.7Injury of accessory nerveSubcodes
S04.8Injury of other cranial nervesSubcodes
S04.9Injury of unspecified cranial nerveBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to S04:

blockS00-S09
Injuries to the head (S00-S09)
View context instructions
chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Injury of cranial nerve.

Search PCS Codes