G50.0 — Trigeminal neuralgia
G50.0 is a billable, specific ICD-10-CM code for trigeminal neuralgia. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Syndrome of paroxysmal facial pain
- Tic douloureux
Risk adjustment
G50.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
G50.0 is named in 35 Medicare coverage policies — 35 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
- A54969Billing and Coding: Nerve Conduction Studies and Electromyography
- A55530Billing and Coding: Peripheral Nerve Stimulation
- A56034Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathy
How G50.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G50.0.
- Neuralgia, neuralgic›trigeminal
- Spasm, spastic, spasticity›nerve, trigeminal
- Syndrome›facial pain, paroxysmal
- Syndrome›paroxysmal facial pain
- Tic›douloureux
Related codes at this level
Codes that share G50. If G50.0 is not quite right, the correct code is usually one of these.
Questions about G50.0
- Is G50.0 a billable ICD-10-CM code?
- Yes. G50.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G50.0 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).