ICD-10-CM › G00-G99 › G50-G59 › G50 Disorders of trigeminal nerve › G50.0
Trigeminal neuralgia
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Trigeminal neuralgia
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from G50 Disorders of trigeminal nerve
Includes
- disorders of 5th cranial nerve
Inherited from the G50-G59 section Nerve, nerve root and plexus disorders (G50-G59)
Excludes1 - never coded here
- current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region
- neuralgia NOS (M79.2)
- neuritis NOS (M79.2)
- peripheral neuritis in pregnancy (O26.82-)
- radiculitis NOS (M54.1-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Neuromyalgia
- Disorder > tic
- Musculoneuralgia
- Pain > nerve NEC
- Perineuritis NEC
- Pain > trigeminal
- Pain > infra-orbital
- Pain > neuromuscular
- Trigeminal neuralgia
- Fothergill's > disease
- Habit, habituation > tic
- Ganglionitis > fifth nerve
- Habit, habituation > spasm
- Neuralgia, neuralgic > trifacial
- Spasm, spastic, spasticity > habit
- Neuralgia, neuralgic > Fothergill's
- Neuralgia, neuralgic > infraorbital
- Spasm, spastic, spasticity > compulsive
- Disease, diseased > Fothergill's > neuralgia
- Spasm, spastic, spasticity > trigeminal nerve
- Neuralgia, neuralgic > cranial > nerve > fifth or trigeminal
- Tic > douloureux
- Neuralgia, neuralgic > trigeminal
- Syndrome > paroxysmal facial pain
- Syndrome > facial pain, paroxysmal
- Spasm, spastic, spasticity > nerve, trigeminal
Codes in the same group
| Code | Description | Status |
|---|---|---|
| G50.1 | Atypical facial pain | Valid |
| G50.8 | Other disorders of trigeminal nerve | Valid |
| G50.9 | Disorder of trigeminal nerve, unspecified | Valid |