S04.50XA

Injury of facial nerve, unspecified side, initial encounter

Billable / specific

S04.50XA is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from S04)

  • 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
  • Note: 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
  • Note: 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.

Excludes2

Not included here — may be reported together when both conditions exist.

  • birth trauma (P10-P15) (from S04)
  • obstetric trauma (O70-O71) (from S04)
  • burns and corrosions (T20-T32) (from S04)
  • effects of foreign body in ear (T16) (from S04)
  • effects of foreign body in larynx (T17.3) (from S04)
  • effects of foreign body in mouth NOS (T18.0) (from S04)
  • effects of foreign body in nose (T17.0-T17.1) (from S04)
  • effects of foreign body in pharynx (T17.2) (from S04)
  • effects of foreign body on external eye (T15.-) (from S04)
  • frostbite (T33-T34) (from S04)
  • insect bite or sting, venomous (T63.4) (from S04)

Code first

Sequence the underlying condition first.

  • any associated intracranial injury (S06.-) (from S04)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from S04)

Code also

An additional code may be needed.

  • for any associated infection (from S04)
  • any associated: (from S04)
  • open wound of head (S01.-) (from S04)
  • skull fracture (S02.-) (from S04)

7th character

The 7th character values that apply to this code (defined at S04). Use the placeholder "X" for missing positions.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Parent code

  • S04.50Injury of facial nerve, unspecified sideNeeds 7th char

Related codes

  • S04.50XDInjury of facial nerve, unspecified side, subsequent encounterBillable
  • S04.50XSInjury of facial nerve, unspecified side, sequelaBillable

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