S04 ICD-10-CM Code: Injury of cranial nerve
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
S04Injury of cranial nerve
ICD-10-CM diagnosis code · United States clinical modification
Where S04 sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Injuries to the head (S00-S09)
- 3
Category S04
Injury of cranial nerve
- 4
Code S04
Injury of cranial nerve
Codes under S04
S04 is a non-billable category. Choose the child code that best matches the documented diagnosis.
S04.0Injury of optic nerve and pathwaysS04.1Injury of oculomotor nerveS04.2Injury of trochlear nerveS04.3Injury of trigeminal nerveS04.4Injury of abducent nerveS04.5Injury of facial nerveS04.6Injury of acoustic nerveS04.7Injury of accessory nerveS04.8Injury of other cranial nervesS04.9Injury of unspecified cranial nerveNotes for this code
Inclusion terms
- The selection of side should be based on the side of the body being affected
Code first
- any associated intracranial injury (S06.-)
Use additional code
No “use additional code” instruction is listed for S04.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for S04.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for S04.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code S04 mean?
S04 is the FY 2027 U.S. ICD-10-CM code for “Injury of cranial nerve.”
Is S04 a billable or specific ICD-10-CM code?
No. S04 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is S04 located in ICD-10-CM?
S04 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Injuries to the head (S00-S09) (S00–S09), under category S04, Injury of cranial nerve.
What coding notes are listed for S04?
Its listed inclusion terms are The selection of side should be based on the side of the body being affected. Code-first instructions: any associated intracranial injury (S06.-). No Excludes1 note is listed. No Excludes2 note is listed.