ICD10BillableValid for clinical use

ICD-10 Code G50.0: Trigeminal neuralgia

G50.0 is a billable ICD-10 diagnosis code used to classify Trigeminal neuralgia in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

When is it used?

  • May be used when a clinician documents trigeminal neuralgia in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
6Diseases of the nervous system (G00-G99)
block
G50-G59Nerve, nerve root and plexus disorders
category
G50Disorders of trigeminal nerve
currentG50

Official coding notes

Inclusion terms
  • Syndrome of paroxysmal facial pain
  • Tic douloureux

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

NeurologistGeneral Physician

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
G50.0

Common synonyms

Trigeminal neuralgia

Frequently asked questions

Code details

CodeG50.0
SystemICD10
Display nameTrigeminal neuralgia
ChapterDiseases of the nervous system (G00-G99)
BlockNerve, nerve root and plexus disorders

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Neuralgia, neuralgic(acute)Spasm(s), spastic, spasticitySyndromeSyndromeTic(disorder)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code G50.0 for Trigeminal neuralgia | HealthAssure