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  2. ICD-10-CM Codes
  3. S00–T98
  4. S00-S09
  5. Injury of cranial nerve (S04)

Injury of cranial nerve (S04)

    • ICD-10 Index

      • Injury, poisoning and certain other consequences of external causes (S00–T98)

        • Injuries to the head (S00-S09)

            • Injury of cranial nerve (S04)
            • S04 - Injury of cranial nerve NON-BILLABLE CODE
            • S04.0 - Injury of optic nerve and pathways NON-BILLABLE CODE
            • S04.01 - Injury of optic nerve NON-BILLABLE CODE
            • S04.011 - Injury of optic nerve, right eye NON-BILLABLE CODE
            • S04.011A - Injury of optic nerve, right eye, initial encounter BILLABLE CODE
            • S04.011D - Injury of optic nerve, right eye, subsequent encounter BILLABLE CODE
            • S04.011S - Injury of optic nerve, right eye, sequela BILLABLE CODE
            • S04.012 - Injury of optic nerve, left eye NON-BILLABLE CODE
            • S04.012A - Injury of optic nerve, left eye, initial encounter BILLABLE CODE
            • S04.012D - Injury of optic nerve, left eye, subsequent encounter BILLABLE CODE
            • S04.012S - Injury of optic nerve, left eye, sequela BILLABLE CODE
            • S04.019 - Injury of optic nerve, unspecified eye NON-BILLABLE CODE
            • S04.019A - Injury of optic nerve, unspecified eye, initial encounter BILLABLE CODE
            • S04.019D - Injury of optic nerve, unspecified eye, subsequent encounter BILLABLE CODE
            • S04.019S - Injury of optic nerve, unspecified eye, sequela BILLABLE CODE
            • S04.02 - Injury of optic chiasm NON-BILLABLE CODE
            • S04.02XA - Injury of optic chiasm, initial encounter BILLABLE CODE
            • S04.02XD - Injury of optic chiasm, subsequent encounter BILLABLE CODE
            • S04.02XS - Injury of optic chiasm, sequela BILLABLE CODE
            • S04.03 - Injury of optic tract and pathways NON-BILLABLE CODE
            • S04.031 - Injury of optic tract and pathways, right side NON-BILLABLE CODE
            • S04.031A - Injury of optic tract and pathways, right side, init BILLABLE CODE
            • S04.031D - Injury of optic tract and pathways, right side, subs BILLABLE CODE
            • S04.031S - Injury of optic tract and pathways, right side, sequela BILLABLE CODE
            • S04.032 - Injury of optic tract and pathways, left side NON-BILLABLE CODE
            • S04.032A - Injury of optic tract and pathways, left side, init BILLABLE CODE
            • S04.032D - Injury of optic tract and pathways, left side, subs BILLABLE CODE
            • S04.032S - Injury of optic tract and pathways, left side, sequela BILLABLE CODE
            • S04.039 - Injury of optic tract and pathways, unspecified side NON-BILLABLE CODE
            • S04.039A - Injury of optic tract and pathways, unspecified side, init BILLABLE CODE
            • S04.039D - Injury of optic tract and pathways, unspecified side, subs BILLABLE CODE
            • S04.039S - Injury of optic tract and pathways, unsp side, sequela BILLABLE CODE
            • S04.04 - Injury of visual cortex NON-BILLABLE CODE
            • S04.041 - Injury of visual cortex, right side NON-BILLABLE CODE
            • S04.041A - Injury of visual cortex, right side, initial encounter BILLABLE CODE
            • S04.041D - Injury of visual cortex, right side, subsequent encounter BILLABLE CODE
            • S04.041S - Injury of visual cortex, right side, sequela BILLABLE CODE
            • S04.042 - Injury of visual cortex, left side NON-BILLABLE CODE
            • S04.042A - Injury of visual cortex, left side, initial encounter BILLABLE CODE
            • S04.042D - Injury of visual cortex, left side, subsequent encounter BILLABLE CODE
            • S04.042S - Injury of visual cortex, left side, sequela BILLABLE CODE
            • S04.049 - Injury of visual cortex, unspecified side NON-BILLABLE CODE
            • S04.049A - Injury of visual cortex, unspecified side, initial encounter BILLABLE CODE
            • S04.049D - Injury of visual cortex, unspecified side, subs BILLABLE CODE
            • S04.049S - Injury of visual cortex, unspecified side, sequela BILLABLE CODE
            • S04.1 - Injury of oculomotor nerve NON-BILLABLE CODE
            • S04.10 - Injury of oculomotor nerve, unspecified side NON-BILLABLE CODE
            • S04.10XA - Injury of oculomotor nerve, unspecified side, init encntr BILLABLE CODE
            • S04.10XD - Injury of oculomotor nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.10XS - Injury of oculomotor nerve, unspecified side, sequela BILLABLE CODE
            • S04.11 - Injury of oculomotor nerve, right side NON-BILLABLE CODE
            • S04.11XA - Injury of oculomotor nerve, right side, initial encounter BILLABLE CODE
            • S04.11XD - Injury of oculomotor nerve, right side, subsequent encounter BILLABLE CODE
            • S04.11XS - Injury of oculomotor nerve, right side, sequela BILLABLE CODE
            • S04.12 - Injury of oculomotor nerve, left side NON-BILLABLE CODE
            • S04.12XA - Injury of oculomotor nerve, left side, initial encounter BILLABLE CODE
            • S04.12XD - Injury of oculomotor nerve, left side, subsequent encounter BILLABLE CODE
            • S04.12XS - Injury of oculomotor nerve, left side, sequela BILLABLE CODE
            • S04.2 - Injury of trochlear nerve NON-BILLABLE CODE
            • S04.20 - Injury of trochlear nerve, unspecified side NON-BILLABLE CODE
            • S04.20XA - Injury of trochlear nerve, unspecified side, init encntr BILLABLE CODE
            • S04.20XD - Injury of trochlear nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.20XS - Injury of trochlear nerve, unspecified side, sequela BILLABLE CODE
            • S04.21 - Injury of trochlear nerve, right side NON-BILLABLE CODE
            • S04.21XA - Injury of trochlear nerve, right side, initial encounter BILLABLE CODE
            • S04.21XD - Injury of trochlear nerve, right side, subsequent encounter BILLABLE CODE
            • S04.21XS - Injury of trochlear nerve, right side, sequela BILLABLE CODE
            • S04.22 - Injury of trochlear nerve, left side NON-BILLABLE CODE
            • S04.22XA - Injury of trochlear nerve, left side, initial encounter BILLABLE CODE
            • S04.22XD - Injury of trochlear nerve, left side, subsequent encounter BILLABLE CODE
            • S04.22XS - Injury of trochlear nerve, left side, sequela BILLABLE CODE
            • S04.3 - Injury of trigeminal nerve NON-BILLABLE CODE
            • S04.30 - Injury of trigeminal nerve, unspecified side NON-BILLABLE CODE
            • S04.30XA - Injury of trigeminal nerve, unspecified side, init encntr BILLABLE CODE
            • S04.30XD - Injury of trigeminal nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.30XS - Injury of trigeminal nerve, unspecified side, sequela BILLABLE CODE
            • S04.31 - Injury of trigeminal nerve, right side NON-BILLABLE CODE
            • S04.31XA - Injury of trigeminal nerve, right side, initial encounter BILLABLE CODE
            • S04.31XD - Injury of trigeminal nerve, right side, subsequent encounter BILLABLE CODE
            • S04.31XS - Injury of trigeminal nerve, right side, sequela BILLABLE CODE
            • S04.32 - Injury of trigeminal nerve, left side NON-BILLABLE CODE
            • S04.32XA - Injury of trigeminal nerve, left side, initial encounter BILLABLE CODE
            • S04.32XD - Injury of trigeminal nerve, left side, subsequent encounter BILLABLE CODE
            • S04.32XS - Injury of trigeminal nerve, left side, sequela BILLABLE CODE
            • S04.4 - Injury of abducent nerve NON-BILLABLE CODE
            • S04.40 - Injury of abducent nerve, unspecified side NON-BILLABLE CODE
            • S04.40XA - Injury of abducent nerve, unspecified side, init encntr BILLABLE CODE
            • S04.40XD - Injury of abducent nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.40XS - Injury of abducent nerve, unspecified side, sequela BILLABLE CODE
            • S04.41 - Injury of abducent nerve, right side NON-BILLABLE CODE
            • S04.41XA - Injury of abducent nerve, right side, initial encounter BILLABLE CODE
            • S04.41XD - Injury of abducent nerve, right side, subsequent encounter BILLABLE CODE
            • S04.41XS - Injury of abducent nerve, right side, sequela BILLABLE CODE
            • S04.42 - Injury of abducent nerve, left side NON-BILLABLE CODE
            • S04.42XA - Injury of abducent nerve, left side, initial encounter BILLABLE CODE
            • S04.42XD - Injury of abducent nerve, left side, subsequent encounter BILLABLE CODE
            • S04.42XS - Injury of abducent nerve, left side, sequela BILLABLE CODE
            • S04.5 - Injury of facial nerve NON-BILLABLE CODE
            • S04.50 - Injury of facial nerve, unspecified side NON-BILLABLE CODE
            • S04.50XA - Injury of facial nerve, unspecified side, initial encounter BILLABLE CODE
            • S04.50XD - Injury of facial nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.50XS - Injury of facial nerve, unspecified side, sequela BILLABLE CODE
            • S04.51 - Injury of facial nerve, right side NON-BILLABLE CODE
            • S04.51XA - Injury of facial nerve, right side, initial encounter BILLABLE CODE
            • S04.51XD - Injury of facial nerve, right side, subsequent encounter BILLABLE CODE
            • S04.51XS - Injury of facial nerve, right side, sequela BILLABLE CODE
            • S04.52 - Injury of facial nerve, left side NON-BILLABLE CODE
            • S04.52XA - Injury of facial nerve, left side, initial encounter BILLABLE CODE
            • S04.52XD - Injury of facial nerve, left side, subsequent encounter BILLABLE CODE
            • S04.52XS - Injury of facial nerve, left side, sequela BILLABLE CODE
            • S04.6 - Injury of acoustic nerve NON-BILLABLE CODE
            • S04.60 - Injury of acoustic nerve, unspecified side NON-BILLABLE CODE
            • S04.60XA - Injury of acoustic nerve, unspecified side, init encntr BILLABLE CODE
            • S04.60XD - Injury of acoustic nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.60XS - Injury of acoustic nerve, unspecified side, sequela BILLABLE CODE
            • S04.61 - Injury of acoustic nerve, right side NON-BILLABLE CODE
            • S04.61XA - Injury of acoustic nerve, right side, initial encounter BILLABLE CODE
            • S04.61XD - Injury of acoustic nerve, right side, subsequent encounter BILLABLE CODE
            • S04.61XS - Injury of acoustic nerve, right side, sequela BILLABLE CODE
            • S04.62 - Injury of acoustic nerve, left side NON-BILLABLE CODE
            • S04.62XA - Injury of acoustic nerve, left side, initial encounter BILLABLE CODE
            • S04.62XD - Injury of acoustic nerve, left side, subsequent encounter BILLABLE CODE
            • S04.62XS - Injury of acoustic nerve, left side, sequela BILLABLE CODE
            • S04.7 - Injury of accessory nerve NON-BILLABLE CODE
            • S04.70 - Injury of accessory nerve, unspecified side NON-BILLABLE CODE
            • S04.70XA - Injury of accessory nerve, unspecified side, init encntr BILLABLE CODE
            • S04.70XD - Injury of accessory nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.70XS - Injury of accessory nerve, unspecified side, sequela BILLABLE CODE
            • S04.71 - Injury of accessory nerve, right side NON-BILLABLE CODE
            • S04.71XA - Injury of accessory nerve, right side, initial encounter BILLABLE CODE
            • S04.71XD - Injury of accessory nerve, right side, subsequent encounter BILLABLE CODE
            • S04.71XS - Injury of accessory nerve, right side, sequela BILLABLE CODE
            • S04.72 - Injury of accessory nerve, left side NON-BILLABLE CODE
            • S04.72XA - Injury of accessory nerve, left side, initial encounter BILLABLE CODE
            • S04.72XD - Injury of accessory nerve, left side, subsequent encounter BILLABLE CODE
            • S04.72XS - Injury of accessory nerve, left side, sequela BILLABLE CODE
            • S04.8 - Injury of other cranial nerves NON-BILLABLE CODE
            • S04.81 - Injury of olfactory [1st ] nerve NON-BILLABLE CODE
            • S04.811 - Injury of olfactory [1st ] nerve, right side NON-BILLABLE CODE
            • S04.811A - Injury of olfactory nerve, right side, initial encounter BILLABLE CODE
            • S04.811D - Injury of olfactory nerve, right side, subsequent encounter BILLABLE CODE
            • S04.811S - Injury of olfactory [1st ] nerve, right side, sequela BILLABLE CODE
            • S04.812 - Injury of olfactory [1st ] nerve, left side NON-BILLABLE CODE
            • S04.812A - Injury of olfactory nerve, left side, initial encounter BILLABLE CODE
            • S04.812D - Injury of olfactory nerve, left side, subsequent encounter BILLABLE CODE
            • S04.812S - Injury of olfactory [1st ] nerve, left side, sequela BILLABLE CODE
            • S04.819 - Injury of olfactory [1st ] nerve, unspecified side NON-BILLABLE CODE
            • S04.819A - Injury of olfactory nerve, unspecified side, init encntr BILLABLE CODE
            • S04.819D - Injury of olfactory nerve, unspecified side, subs encntr BILLABLE CODE
            • S04.819S - Injury of olfactory [1st ] nerve, unspecified side, sequela BILLABLE CODE
            • S04.89 - Injury of other cranial nerves NON-BILLABLE CODE
            • S04.891 - Injury of other cranial nerves, right side NON-BILLABLE CODE
            • S04.891A - Injury of other cranial nerves, right side, init encntr BILLABLE CODE
            • S04.891D - Injury of other cranial nerves, right side, subs encntr BILLABLE CODE
            • S04.891S - Injury of other cranial nerves, right side, sequela BILLABLE CODE
            • S04.892 - Injury of other cranial nerves, left side NON-BILLABLE CODE
            • S04.892A - Injury of other cranial nerves, left side, initial encounter BILLABLE CODE
            • S04.892D - Injury of other cranial nerves, left side, subs encntr BILLABLE CODE
            • S04.892S - Injury of other cranial nerves, left side, sequela BILLABLE CODE
            • S04.899 - Injury of other cranial nerves, unspecified side NON-BILLABLE CODE
            • S04.899A - Injury of other cranial nerves, unsp side, init encntr BILLABLE CODE
            • S04.899D - Injury of other cranial nerves, unsp side, subs encntr BILLABLE CODE
            • S04.899S - Injury of other cranial nerves, unspecified side, sequela BILLABLE CODE
            • S04.9 - Injury of unspecified cranial nerve NON-BILLABLE CODE
            • S04.9XXA - Injury of unspecified cranial nerve, initial encounter BILLABLE CODE
            • S04.9XXD - Injury of unspecified cranial nerve, subsequent encounter BILLABLE CODE
            • S04.9XXS - Injury of unspecified cranial nerve, sequela BILLABLE CODE

Instructional Notations

Inclusion Terms Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

  • The selection of side should be based on the side of the body being affected

Code First Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

  • any associated intracranial injury S06

Code Also Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

  • any associated:
  • open wound of head S01
  • skull fracture S02

7th Character Note 7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

  • The appropriate 7th character is to be added to each code from category S04

7th Character 7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela