ICD-10-CM Code M79.2

Neuralgia and neuritis, unspecified

Version 2020 Billable Code

Valid for Submission

M79.2 is a billable code used to specify a medical diagnosis of neuralgia and neuritis, unspecified. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M79.2 might also be used to specify conditions or terms like atypical neuralgia, autosomal dominant intermediate charcot-marie-tooth disease with neuropathic pain, chronic central neuropathic pain, chronic neuropathic pain, chronic peripheral neuropathic pain, cluster tic syndrome, etc

Short Description:Neuralgia and neuritis, unspecified
Long Description:Neuralgia and neuritis, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code M79.2:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M79.2 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Atypical neuralgia
  • Autosomal dominant intermediate Charcot-Marie-Tooth disease with neuropathic pain
  • Chronic central neuropathic pain
  • Chronic neuropathic pain
  • Chronic peripheral neuropathic pain
  • Cluster tic syndrome
  • Lateral femoral cutaneous neuralgia
  • Left foot neuritis
  • Neuralgia
  • Neuralgia associated with AIDS
  • Neuralgia co-occurrent with human immunodeficiency virus infection
  • Neuralgia of left upper limb
  • Neuralgia of right upper limb
  • Neuralgia/neuritis - ankle/foot
  • Neuralgia/neuritis - forearm
  • Neuralgia/neuritis - hand
  • Neuralgia/neuritis - lower leg
  • Neuralgia/neuritis - multiple
  • Neuralgia/neuritis - pelvis/thigh
  • Neuralgia/neuritis - shoulder
  • Neuralgia/neuritis - upper arm
  • Neuritis associated with AIDS
  • Neuritis co-occurrent with human immunodeficiency virus infection
  • Neuritis of bilateral feet
  • Neurogenic pain
  • Neurological pain disorder
  • Neuropathic pain
  • Neuropathic pain
  • Neuropathic pain due to radiation
  • Neuropathy of upper limb due to inflammatory disease
  • Orofacial neuropathic pain
  • Pain in forearm
  • Peripheral neuralgia
  • Peripheral neurogenic pain
  • Peripheral neuropathic pain
  • Peripheral neuropathy due to inflammation
  • Postinfectious neuralgia
  • Postinfective peripheral neuralgia
  • Postinfective segmental neuralgia
  • Reminiscent neuralgia
  • Right foot neuritis
  • Segmental neuralgia as late effect of traumatic injury
  • Segmental peripheral neuralgia
  • Supraorbital neuralgia

Convert M79.2 to ICD-9

  • 729.2 - Neuralgia/neuritis NOS (Approximate Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other soft tissue disorders (M70-M79)
      • Oth and unsp soft tissue disorders, not elsewhere classified (M79)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Pain is a signal in your nervous system that something may be wrong. It is an unpleasant feeling, such as a prick, tingle, sting, burn, or ache. Pain may be sharp or dull. It may come and go, or it may be constant. You may feel pain in one area of your body, such as your back, abdomen, chest, pelvis, or you may feel pain all over.

Pain can be helpful in diagnosing a problem. If you never felt pain, you might seriously hurt yourself without knowing it, or you might not realize you have a medical problem that needs treatment.

There are two types of pain: acute and chronic. Acute pain usually comes on suddenly, because of a disease, injury, or inflammation. It can often be diagnosed and treated. It usually goes away, though sometimes it can turn into chronic pain. Chronic pain lasts for a long time, and can cause severe problems.

Pain is not always curable, but there are many ways to treat it. Treatment depends on the cause and type of pain. There are drug treatments, including pain relievers. There are also non-drug treatments, such as acupuncture, physical therapy, and sometimes surgery.

NIH: National Institute of Neurological Disorders and Stroke

[Learn More]

Peripheral Nerve Disorders

Your peripheral nerves are the ones outside your brain and spinal cord. Like static on a telephone line, peripheral nerve disorders distort or interrupt the messages between the brain and the rest of the body.

There are more than 100 kinds of peripheral nerve disorders. They can affect one nerve or many nerves. Some are the result of other diseases, like diabetic nerve problems. Others, like Guillain-Barre syndrome, happen after a virus infection. Still others are from nerve compression, like carpal tunnel syndrome or thoracic outlet syndrome. In some cases, like complex regional pain syndrome and brachial plexus injuries, the problem begins after an injury. Some people are born with peripheral nerve disorders.

Symptoms often start gradually, and then get worse. They include

  • Numbness
  • Pain
  • Burning or tingling
  • Muscle weakness
  • Sensitivity to touch

Treatment aims to treat any underlying problem, reduce pain and control symptoms.

NIH: National Institute of Neurological Disorders and Stroke

[Learn More]