Is S04 a billable code?
No. S04 is a header code that groups 45 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
S04: Injury of cranial nerve
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S04 groups related diagnoses under injury of cranial nerve. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under S04
- 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
- S04.031AInjury 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
- S04.811AInjury 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 questions
What does S04 mean?
S04 is the ICD-10-CM code for Injury of cranial nerve. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.