G54.5: Neuralgic amyotrophy

The network of nerves between your neck and your armpit is inflamed.

The spine contains the spinal cord. The spinal cord is made up of nerve fibers. To the side of the spine, the nerve fibers emerge from the spinal cord and form nerves. Nerves are a sort of wiring in the body. Nerves conduct information. The nerves use electrical impulses to do this. Nerves are important, for instance, in enabling us to feel touch and temperature and to move our muscles.

In the neck area, nerves emerge from the side of the spine to serve the shoulder and arm. Together, the nerves between the neck and the armpit form a network. You have a disorder causing inflammation in this nerve network. The precise cause of this disorder is unknown.

The disorder typically begins with bad pain in the shoulder area. Muscles in the shoulder, arm or upper back may weaken. You may then find it difficult to raise your arm. The skin in your shoulder or arm may also feel tingly or numb.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information


This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.


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