2019 ICD-10-CM Diagnosis Code G50.0

Trigeminal neuralgia

    2016 2017 2018 2019 Billable/Specific Code
  • G50.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM G50.0 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of G50.0 - other international versions of ICD-10 G50.0 may differ.
Applicable To
  • Syndrome of paroxysmal facial pain
  • Tic douloureux
The following code(s) above G50.0 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 G50.0:
  • G00-G99
    2019 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
    2019 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
  • G50
    ICD-10-CM Diagnosis Code G50

    Disorders of trigeminal nerve

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Includes
    • disorders of 5th cranial nerve
    Disorders of trigeminal nerve
Approximate Synonyms
  • Left trigeminal neuralgia
  • Right trigeminal neuralgia
  • Trigeminal neuralgia (nerve pain)
Clinical Information
  • A syndrome characterized by recurrent episodes of excruciating pain lasting several seconds or longer in the sensory distribution of the trigeminal nerve. Pain may be initiated by stimulation of trigger points on the face, lips, or gums or by movement of facial muscles or chewing. Associated conditions include multiple sclerosis, vascular anomalies, aneurysms, and neoplasms. (Adams et al., Principles of Neurology, 6th ed, p187)
  • Can you imagine feeling a shock in your face as you brush your teeth or shave? if you have trigeminal neuralgia (tn), you may know exactly what it's like. You may feel extreme numbness, tingling or burning on a part of your face. Any vibration on your face, even from talking, can set it off. The condition may come and go, disappearing for days or even months. But the longer you have it, the less often it goes away. Your trigeminal nerve is responsible for sensations on your face. The cause of tn is probably a blood vessel pressing on the trigeminal nerve. Tumors and multiple sclerosis can also cause tn, but in some cases the cause is unknown.tn usually affects people over 50, especially women. Medicines and sometimes surgery can help with the pain.
  • Syndrome characterized by recurrent episodes of excruciating pain lasting several seconds or longer in the sensory distribution of the trigeminal nerve.
ICD-10-CM G50.0 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 073 Cranial and peripheral nerve disorders with mcc
  • 074 Cranial and peripheral nerve disorders without mcc

Convert G50.0 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
Code annotations containing back-references to G50.0:
  • Type 1 Excludes: R51
    ICD-10-CM Diagnosis Code R51

    Headache

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Facial pain NOS
    Type 1 Excludes
    • atypical face pain (G50.1)
    • migraine and other headache syndromes (G43-G44)
    • trigeminal neuralgia (G50.0)
  • Type 2 Excludes: G44
    ICD-10-CM Diagnosis Code G44

    Other headache syndromes

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • headache NOS (R51)
    Type 2 Excludes
    • atypical facial pain (G50.1)
    • headache due to lumbar puncture (G97.1)
    • migraines (G43.-)
    • trigeminal neuralgia (G50.0)

Diagnosis Index entries containing back-references to G50.0:
  • Neuralgia, neuralgic (acute) M79.2
    ICD-10-CM Diagnosis Code M79.2

    Neuralgia and neuritis, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Type 1 Excludes
  • Syndrome - see also Disease
    • facial pain, paroxysmal G50.0
    • paroxysmal facial pain G50.0
  • Tic (disorder) F95.9
    ICD-10-CM Diagnosis Code F95.9

    Tic disorder, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Tic NOS

ICD-10-CM Codes Adjacent To G50.0
G47.54 …… in conditions classified elsewhere
G47.59 Other parasomnia
G47.6 Sleep related movement disorders
G47.61 Periodic limb movement disorder
G47.62 Sleep related leg cramps
G47.63 Sleep related bruxism
G47.69 Other sleep related movement disorders
G47.8 Other sleep disorders
G47.9 Sleep disorder, unspecified
G50 Disorders of trigeminal nerve
G50.0 Trigeminal neuralgia
G50.1 Atypical facial pain
G50.8 Other disorders of trigeminal nerve
G50.9 Disorder of trigeminal nerve, unspecified
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

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