• 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-)
  1. G50 Disorders of trigeminal nerve


    • disorders of 5th cranial nerve
    1. G50.0 Trigeminal neuralgia

      Inclusion term(s):

      • Syndrome of paroxysmal facial pain
      • Tic douloureux
    2. G50.1 Atypical facial pain

    3. G50.8 Other disorders of trigeminal nerve

    4. G50.9 Disorder of trigeminal nerve, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.