ICD-9 Diagnosis Code 358.8

Myoneural disorders NEC

Diagnosis Code 358.8

ICD-9: 358.8
Short Description: Myoneural disorders NEC
Long Description: Other specified myoneural disorders
This is the 2014 version of the ICD-9-CM diagnosis code 358.8

Code Classification
  • Diseases of the nervous system
    • Disorders of the peripheral nervous system (350-359)
      • 358 Myoneural disorders

Information for Medical Professionals

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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Amyotonia congenita
  • Benign congenital hypotonia
  • Cholinergic crisis
  • Disorder of neuromuscular transmission
  • Drug-induced myasthenia
  • Hereditary motor end-plate disease
  • Neuromuscular junction disorder
  • Synkinesis of face

Index of Diseases and Injuries
References found for the code 358.8 in the Index of Diseases and Injuries:

Information for Patients

Neuromuscular Disorders

Neuromuscular disorders affect the nerves that control your voluntary muscles. Voluntary muscles are the ones you can control, like in your arms and legs. Your nerve cells, also called neurons, send the messages that control these muscles. When the neurons become unhealthy or die, communication between your nervous system and muscles breaks down. As a result, your muscles weaken and waste away. The weakness can lead to twitching, cramps, aches and pains, and joint and movement problems. Sometimes it also affects heart function and your ability to breathe.

Examples of neuromuscular disorders include

  • Amyotrophic lateral sclerosis
  • Multiple sclerosis
  • Myasthenia gravis
  • Spinal muscular atrophy

Many neuromuscular diseases are genetic, which means they run in families or there is a mutation in your genes. Sometimes, an immune system disorder can cause them. Most of them have no cure. The goal of treatment is to improve symptoms, increase mobility and lengthen life.

  • Apraxia
  • Hand or foot spasms
  • Muscle atrophy
  • Muscle function loss
  • Muscle twitching
  • Myotonia congenita
  • Spasticity

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