ICD-10-CM Code G56.91

Unspecified mononeuropathy of right upper limb

Version 2021 Replaced Code Billable Code

Valid for Submission

G56.91 is a billable code used to specify a medical diagnosis of unspecified mononeuropathy of right upper limb. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code G56.91 might also be used to specify conditions or terms like neuroma of right upper limb following surgery, neuroma of upper limb, paralysis of right musculocutaneous nerve, postoperative neuroma of upper limb, right arm peripheral neuropathy, right axillary neuropathy, etc

ICD-10:G56.91
Short Description:Unspecified mononeuropathy of right upper limb
Long Description:Unspecified mononeuropathy of right upper limb

Replaced Code

This code was replaced in the 2021 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).

  • G56.93 - Unspecified mononeuropathy of bilateral upper limbs
  • G56.93 - Unspecified mononeuropathy of bilateral upper limbs

Synonyms

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

  • Neuroma of right upper limb following surgery
  • Neuroma of upper limb
  • Paralysis of right musculocutaneous nerve
  • Postoperative neuroma of upper limb
  • Right arm peripheral neuropathy
  • Right axillary neuropathy

Convert G56.91 to ICD-9

  • 354.9 - Mononeuritis arm NOS (Approximate Flag)

Code Classification

  • Diseases of the nervous system (G00–G99)
    • Nerve, nerve root and plexus disorders (G50-G59)
      • Mononeuropathies of upper limb (G56)

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
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Peripheral Nerve Disorders

Also called: Neuritis, Peripheral neuritis, Peripheral neuropathy

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

  • Axillary nerve dysfunction (Medical Encyclopedia)
  • Chronic inflammatory polyneuropathy (Medical Encyclopedia)
  • Common peroneal nerve dysfunction (Medical Encyclopedia)
  • Distal median nerve dysfunction (Medical Encyclopedia)
  • Femoral nerve dysfunction (Medical Encyclopedia)
  • Glossopharyngeal neuralgia (Medical Encyclopedia)
  • Metabolic neuropathies (Medical Encyclopedia)
  • Mononeuritis multiplex (Medical Encyclopedia)
  • Neuralgia (Medical Encyclopedia)
  • Neuropathy secondary to drugs (Medical Encyclopedia)
  • Peripheral neuropathy (Medical Encyclopedia)
  • Radial nerve dysfunction (Medical Encyclopedia)
  • Sensorimotor polyneuropathy (Medical Encyclopedia)
  • Tibial nerve dysfunction (Medical Encyclopedia)
  • Ulnar nerve dysfunction (Medical Encyclopedia)

[Learn More]