S04.3
Injury of trigeminal nerve
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
S00-S09block
Excludes2
- burns and corrosions (T20-T32)T20-T32
- effects of foreign body in ear (T16)T16
- effects of foreign body in larynx (T17.3)T17.3
- effects of foreign body in mouth NOS (T18.0)T18.0
- effects of foreign body in nose (T17.0-T17.1)T17.0-T17.1
- effects of foreign body in pharynx (T17.2)T17.2
- effects of foreign body on external eye (T15.-)T15.-
- frostbite (T33-T34)T33-T34
- insect bite or sting, venomous (T63.4)T63.4
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 22
S04code
S04.3code
Inclusion terms
- Injury of 5th cranial nerve
S00-S09block
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
Code also
- for any associated infection
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 1
Alongside this code 9 same parent — S04
S04.0 Injury of optic nerve and pathways category S04.1 Injury of oculomotor nerve category S04.2 Injury of trochlear nerve category S04.4 Injury of abducent nerve category S04.5 Injury of facial nerve category S04.6 Injury of acoustic nerve category S04.7 Injury of accessory nerve category S04.8 Injury of other cranial nerves category S04.9 Injury of unspecified cranial nerve category
Subordinate codes 3
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.