Specific code 2014 ICD-9-CM Diagnosis Code 358.9
Myoneural disorders, unspecified
  • Billable Code
  • Short description: Myoneural disorders NOS.
  • ICD-9-CM 358.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 358.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Combined disorder of muscle AND peripheral nerve (disorder)
  • Hypoventilation during sleep due to neuromuscular disorder (disorder)
  • Myoneural disorder
  • Neuromuscular disease
  • Neuromuscular disorder (disorder)
  • Neuromuscular junction disorder
  • Neuromuscular scoliosis
  • Neuromuscular scoliosis of cervical (neck) spine
  • Neuromuscular scoliosis of cervical spine
  • Neuromuscular scoliosis of cervicothoracic spine
  • Neuromuscular scoliosis of lumbar spine
  • Neuromuscular scoliosis of lumbosacral spine
  • Neuromuscular scoliosis of occipitoatlantoaxial spine
  • Neuromuscular scoliosis of thoracic spine
  • Neuromuscular scoliosis of thoracolumbar spine
  • Restrictive lung mechanics due to neuromuscular disease
  • Restrictive lung mechanics from neuromuscular disease
  • Sleep related hypoventilation due to neuromuscular disorders
  • Sleep related hypoventilation from neuromusc disorder
Clinical Information
  • A general term encompassing lower motor neuron disease; peripheral nervous system diseases; and certain muscular diseases. Manifestations include muscle weakness; fasciculation; muscle atrophy; spasm; myokymia; muscle hypertonia, myalgias, and muscle hypotonia.
  • Diseases affecting the parts of motor units that are in the peripheral nervous system; can be classified as affecting neuromuscular junctions, and muscle fibers.
  • 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.
Convert to ICD-10-CM: 358.9 converts directly to:
  • 2014 ICD-10-CM G70.9 Myoneural disorder, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 358.9:
  • Disease, diseased - see also Syndrome
    • myoneural 358.9
    • neuromuscular system NEC 358.9
  • Disorder - see also Disease
  • Neuromyopathy NEC 358.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 358.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.