Excludes1

  • 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. G51 Facial nerve disorders

    Includes:

    • disorders of 7th cranial nerve
    1. G51.0 Bell's palsy

      Inclusion term(s):

      • Facial palsy
    2. G51.1 Geniculate ganglionitis

    3. G51.2 Melkersson's syndrome

      Inclusion term(s):

      • Melkersson-Rosenthal syndrome
    4. G51.3 Clonic hemifacial spasm

      1. G51.31 Clonic hemifacial spasm, right

      2. G51.32 Clonic hemifacial spasm, left

      3. G51.33 Clonic hemifacial spasm, bilateral

      4. G51.39 Clonic hemifacial spasm, unspecified

    5. G51.4 Facial myokymia

    6. G51.8 Other disorders of facial nerve

    7. G51.9 Disorder of facial 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.