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ICD-10/S04.52

S04.52 ICD-10-CM Code: Injury of facial nerve, left side

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Injury of facial nerve, left side is a non-billable ICD-10-CM category code (S04.52). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S04.52 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • 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

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • burns and corrosions (T20-T32)
  • effects of foreign body in ear (T16)
  • effects of foreign body in larynx (T17.3)
  • effects of foreign body in mouth NOS (T18.0)
  • effects of foreign body in nose (T17.0-T17.1)
  • effects of foreign body in pharynx (T17.2)
  • effects of foreign body on external eye (T15.-)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)

Code First

Underlying conditions that must be sequenced before this code.

  • any associated intracranial injury (S06.-)

Code Also

Additional codes that may be required to fully describe the encounter.

  • any associated:
  • open wound of head (S01.-)
  • skull fracture (S02.-)
  • for any associated infection

Frequently Asked Questions (FAQ) & Clinical Guidance

Can S04.52 be billed directly?

No. S04.52 (Injury of facial nerve, left side) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does S04.52 require a 7th character?

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

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S04.52 in its code family, with their registry titles.

  • S04.50XS — Injury of facial nerve, unspecified side, sequela
  • S04.51 — Injury of facial nerve, right side
  • S04.51XA — Injury of facial nerve, right side, initial encounter
  • S04.51XD — Injury of facial nerve, right side, subsequent encounter
  • S04.51XS — Injury of facial nerve, right side, sequela
  • S04.52XA — Injury of facial nerve, left side, initial encounter
  • S04.52XD — Injury of facial nerve, left side, subsequent encounter
  • S04.52XS — Injury of facial nerve, left side, sequela
  • S04.6 — Injury of acoustic nerve
  • S04.60 — Injury of acoustic nerve, unspecified side

View all codes in the S04 family