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Home/Diagnosis/ICD-10 Coding for Facial Nerve Palsy

ICD-10 Coding for Facial Nerve Palsy

G51.0
G51.3
G51.8

Complete ICD-10-CM coding and documentation guide for icd-10 coding for facial nerve palsy includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Bell's Palsy
Idiopathic Facial Paralysis
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Key Information: ICD-10 Coding for Facial Nerve Palsy

Essential facts and insights about ICD-10 Coding for Facial Nerve Palsy

Use ICD-10 code G51.0 for bell's palsy, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Bell's palsy

Billable Code
G51.0
Billable

Diagnostic Criteria

clinical:
  • • Presence of acute onset facial droop with forehead involvement
documentation:
  • • Negative CNS lesion on imaging

Applicable To

  • • Idiopathic facial paralysis

Important Notes

  • • Ensure documentation specifies laterality and confirms LMN pattern.

Clonic hemifacial spasm

Non-Billable
G51.3
Non-Billable

Diagnostic Criteria

clinical:
  • • Rhythmic unilateral contractions
  • • No synkinesis

Important Notes

  • • Ensure documentation specifies the nature of spasms.

Other disorders of facial nerve

Billable Code
G51.8
Billable

Diagnostic Criteria

clinical:
  • • History of trauma or surgery affecting the facial nerve

Applicable To

  • • Post-traumatic facial nerve disorder
  • • Iatrogenic facial nerve disorder

Important Notes

  • • Document the specific cause of the facial nerve disorder.

Facial nerve disorder, unspecified

Billable Code
G51.9
Billable

Diagnostic Criteria

clinical:
  • • General facial weakness without specific etiology

Important Notes

  • • Encourage specificity in documentation to avoid using unspecified codes.
Ancillary Codes

Additional codes that may be used with this diagnosis

B94.1

Sequelae of viral encephalitis

Use if Bell's palsy is a sequela of viral infection.

Frequently Asked Questions

What is the ICD-10 code for Bell's palsy?

The ICD-10 code for Bell's palsy is G51.0. It is used when there is acute onset of unilateral facial paralysis with forehead involvement.

How do you code unspecified facial nerve disorder?

Use ICD-10 code G51.9 for unspecified facial nerve disorder when specific etiology or laterality is not documented.

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