2021 ICD-10-CM Diagnosis Code G51.8

Other disorders of facial nerve

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • G51.8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM G51.8 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of G51.8 - other international versions of ICD-10 G51.8 may differ.
The following code(s) above G51.8 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to G51.8:
  • G00-G99
    2021 ICD-10-CM Range G00-G99

    Diseases of the nervous system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the nervous system
  • G50-G59
    2021 ICD-10-CM Range G50-G59

    Nerve, nerve root and plexus disorders

    Type 1 Excludes
    • 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-)
    Nerve, nerve root and plexus disorders
  • G51
    ICD-10-CM Diagnosis Code G51

    Facial nerve disorders

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • disorders of 7th cranial nerve
    Facial nerve disorders
Approximate Synonyms
  • Facial nerve synkinesis
ICD-10-CM G51.8 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 073 Cranial and peripheral nerve disorders with mcc
  • 074 Cranial and peripheral nerve disorders without mcc

Convert G51.8 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to G51.8:
  • Atrophy, atrophic (of)
    • hemifacial Q67.4
      ICD-10-CM Diagnosis Code Q67.4

      Other congenital deformities of skull, face and jaw

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital depressions in skull
      • Congenital hemifacial atrophy or hypertrophy
      • Deviation of nasal septum, congenital
      • Squashed or bent nose, congenital
      Type 1 Excludes
      • dentofacial anomalies [including malocclusion] (M26.-)
      • syphilitic saddle nose (A50.5)
      • Romberg G51.8
  • Compression
    • cranial nerve G52.9
      ICD-10-CM Diagnosis Code G52.9

      Cranial nerve disorder, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • seventh G51.8
  • Disorder (of) - see also Disease
    • nerve G58.9
      ICD-10-CM Diagnosis Code G58.9

      Mononeuropathy, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • cranial G52.9
        ICD-10-CM Diagnosis Code G52.9

        Cranial nerve disorder, unspecified

          2016 2017 2018 2019 2020 2021 Billable/Specific Code
        • seventh NEC G51.8
      • facial G51.9
        ICD-10-CM Diagnosis Code G51.9

        Disorder of facial nerve, unspecified

          2016 2017 2018 2019 2020 2021 Billable/Specific Code
        • specified NEC G51.8
  • Hemiatrophy R68.89
    ICD-10-CM Diagnosis Code R68.89

    Other general symptoms and signs

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • face, facial, progressive G51.8 (Romberg)
  • Lesion(s) (nontraumatic)
    • chorda tympani G51.8
  • Neuritis (rheumatoid) M79.2
    ICD-10-CM Diagnosis Code M79.2

    Neuralgia and neuritis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 1 Excludes
  • Paraspasmus facialis G51.8
  • Parry-Romberg syndrome G51.8
  • Romberg's disease or syndrome G51.8

ICD-10-CM Codes Adjacent To G51.8
G51 Facial nerve disorders
G51.0 Bell's palsy
G51.1 Geniculate ganglionitis
G51.2 Melkersson's syndrome
G51.3 Clonic hemifacial spasm
G51.31 …… right
G51.32 …… left
G51.33 …… bilateral
G51.39 …… unspecified
G51.4 Facial myokymia
G51.8 Other disorders of facial nerve
G51.9 Disorder of facial nerve, unspecified
G52 Disorders of other cranial nerves
G52.0 Disorders of olfactory nerve
G52.1 Disorders of glossopharyngeal nerve
G52.2 Disorders of vagus nerve
G52.3 Disorders of hypoglossal nerve
G52.7 Disorders of multiple cranial nerves
G52.8 Disorders of other specified cranial nerves
G52.9 Cranial nerve disorder, unspecified
G53 Cranial nerve disorders in diseases classified elsewhere

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.