ICD-10-CM category
S04 Injury of cranial nerves
S04 is a category, not a billable code. Report one of the 114 complete codes below.
S04.0…
30 codes
- S04.011AInjury of optic nerve, right eye, initial encounter
- S04.011DInjury of optic nerve, right eye, subsequent encounter
- S04.011SInjury of optic nerve, right eye, sequela
- S04.012AInjury of optic nerve, left eye, initial encounter
- S04.012DInjury of optic nerve, left eye, subsequent encounter
- S04.012SInjury of optic nerve, left eye, sequela
- S04.019AInjury of optic nerve, unspecified eye, initial encounter
- S04.019DInjury of optic nerve, unspecified eye, subsequent encounter
- S04.019SInjury of optic nerve, unspecified eye, sequela
- S04.02XAInjury of optic chiasm, initial encounter
- S04.02XDInjury of optic chiasm, subsequent encounter
- S04.02XSInjury of optic chiasm, sequela
- S04.031AInjury of optic tract and pathways, right side, initial encounter
- S04.031DInjury of optic tract and pathways, right side, subsequent encounter
- S04.031SInjury of optic tract and pathways, right side, sequela
- S04.032AInjury of optic tract and pathways, left side, initial encounter
- S04.032DInjury of optic tract and pathways, left side, subsequent encounter
- S04.032SInjury of optic tract and pathways, left side, sequela
- S04.039AInjury of optic tract and pathways, unspecified side, initial encounter
- S04.039DInjury of optic tract and pathways, unspecified side, subsequent encounter
- S04.039SInjury of optic tract and pathways, unspecified side, sequela
- S04.041AInjury of visual cortex, right side, initial encounter
- S04.041DInjury of visual cortex, right side, subsequent encounter
- S04.041SInjury of visual cortex, right side, sequela
- S04.042AInjury of visual cortex, left side, initial encounter
- S04.042DInjury of visual cortex, left side, subsequent encounter
- S04.042SInjury of visual cortex, left side, sequela
- S04.049AInjury of visual cortex, unspecified side, initial encounter
- S04.049DInjury of visual cortex, unspecified side, subsequent encounter
- S04.049SInjury of visual cortex, unspecified side, sequela
S04.1…
9 codes
- S04.10XAInjury of oculomotor nerve, unspecified side, initial encounter
- S04.10XDInjury of oculomotor nerve, unspecified side, subsequent encounter
- S04.10XSInjury of oculomotor nerve, unspecified side, sequela
- S04.11XAInjury of oculomotor nerve, right side, initial encounter
- S04.11XDInjury of oculomotor nerve, right side, subsequent encounter
- S04.11XSInjury of oculomotor nerve, right side, sequela
- S04.12XAInjury of oculomotor nerve, left side, initial encounter
- S04.12XDInjury of oculomotor nerve, left side, subsequent encounter
- S04.12XSInjury of oculomotor nerve, left side, sequela
S04.2…
9 codes
- S04.20XAInjury of trochlear nerve, unspecified side, initial encounter
- S04.20XDInjury of trochlear nerve, unspecified side, subsequent encounter
- S04.20XSInjury of trochlear nerve, unspecified side, sequela
- S04.21XAInjury of trochlear nerve, right side, initial encounter
- S04.21XDInjury of trochlear nerve, right side, subsequent encounter
- S04.21XSInjury of trochlear nerve, right side, sequela
- S04.22XAInjury of trochlear nerve, left side, initial encounter
- S04.22XDInjury of trochlear nerve, left side, subsequent encounter
- S04.22XSInjury of trochlear nerve, left side, sequela
S04.3…
9 codes
- S04.30XAInjury of trigeminal nerve, unspecified side, initial encounter
- S04.30XDInjury of trigeminal nerve, unspecified side, subsequent encounter
- S04.30XSInjury of trigeminal nerve, unspecified side, sequela
- S04.31XAInjury of trigeminal nerve, right side, initial encounter
- S04.31XDInjury of trigeminal nerve, right side, subsequent encounter
- S04.31XSInjury of trigeminal nerve, right side, sequela
- S04.32XAInjury of trigeminal nerve, left side, initial encounter
- S04.32XDInjury of trigeminal nerve, left side, subsequent encounter
- S04.32XSInjury of trigeminal nerve, left side, sequela
S04.4…
9 codes
- S04.40XAInjury of abducent nerve, unspecified side, initial encounter
- S04.40XDInjury of abducent nerve, unspecified side, subsequent encounter
- S04.40XSInjury of abducent nerve, unspecified side, sequela
- S04.41XAInjury of abducent nerve, right side, initial encounter
- S04.41XDInjury of abducent nerve, right side, subsequent encounter
- S04.41XSInjury of abducent nerve, right side, sequela
- S04.42XAInjury of abducent nerve, left side, initial encounter
- S04.42XDInjury of abducent nerve, left side, subsequent encounter
- S04.42XSInjury of abducent nerve, left side, sequela
S04.5…
9 codes
- S04.50XAInjury of facial nerve, unspecified side, initial encounter
- S04.50XDInjury of facial nerve, unspecified side, subsequent encounter
- S04.50XSInjury of facial nerve, unspecified side, sequela
- S04.51XAInjury of facial nerve, right side, initial encounter
- S04.51XDInjury of facial nerve, right side, subsequent encounter
- S04.51XSInjury of facial nerve, right side, sequela
- S04.52XAInjury of facial nerve, left side, initial encounter
- S04.52XDInjury of facial nerve, left side, subsequent encounter
- S04.52XSInjury of facial nerve, left side, sequela
S04.6…
9 codes
- S04.60XAInjury of acoustic nerve, unspecified side, initial encounter
- S04.60XDInjury of acoustic nerve, unspecified side, subsequent encounter
- S04.60XSInjury of acoustic nerve, unspecified side, sequela
- S04.61XAInjury of acoustic nerve, right side, initial encounter
- S04.61XDInjury of acoustic nerve, right side, subsequent encounter
- S04.61XSInjury of acoustic nerve, right side, sequela
- S04.62XAInjury of acoustic nerve, left side, initial encounter
- S04.62XDInjury of acoustic nerve, left side, subsequent encounter
- S04.62XSInjury of acoustic nerve, left side, sequela
S04.7…
9 codes
- S04.70XAInjury of accessory nerve, unspecified side, initial encounter
- S04.70XDInjury of accessory nerve, unspecified side, subsequent encounter
- S04.70XSInjury of accessory nerve, unspecified side, sequela
- S04.71XAInjury of accessory nerve, right side, initial encounter
- S04.71XDInjury of accessory nerve, right side, subsequent encounter
- S04.71XSInjury of accessory nerve, right side, sequela
- S04.72XAInjury of accessory nerve, left side, initial encounter
- S04.72XDInjury of accessory nerve, left side, subsequent encounter
- S04.72XSInjury of accessory nerve, left side, sequela
S04.8…
18 codes
- S04.811AInjury of olfactory [1st ] nerve, right side, initial encounter
- S04.811DInjury of olfactory [1st ] nerve, right side, subsequent encounter
- S04.811SInjury of olfactory [1st ] nerve, right side, sequela
- S04.812AInjury of olfactory [1st ] nerve, left side, initial encounter
- S04.812DInjury of olfactory [1st ] nerve, left side, subsequent encounter
- S04.812SInjury of olfactory [1st ] nerve, left side, sequela
- S04.819AInjury of olfactory [1st ] nerve, unspecified side, initial encounter
- S04.819DInjury of olfactory [1st ] nerve, unspecified side, subsequent encounter
- S04.819SInjury of olfactory [1st ] nerve, unspecified side, sequela
- S04.891AInjury of other cranial nerves, right side, initial encounter
- S04.891DInjury of other cranial nerves, right side, subsequent encounter
- S04.891SInjury of other cranial nerves, right side, sequela
- S04.892AInjury of other cranial nerves, left side, initial encounter
- S04.892DInjury of other cranial nerves, left side, subsequent encounter
- S04.892SInjury of other cranial nerves, left side, sequela
- S04.899AInjury of other cranial nerves, unspecified side, initial encounter
- S04.899DInjury of other cranial nerves, unspecified side, subsequent encounter
- S04.899SInjury of other cranial nerves, unspecified side, sequela
S04.9…
3 codes
Outside the US? S04 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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