Specific code 2014 ICD-9-CM Diagnosis Code 358.8
Other specified myoneural disorders
  • 2014
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • Short description: Myoneural disorders NEC.
  • ICD-9-CM 358.8 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 358.8 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2014 version of ICD-9-CM 358.8.
  • More recent version(s) of ICD-9-CM 358.8: 2015.
Convert to ICD-10-CM: 358.8 converts approximately to:
  • 2015/16 ICD-10-CM G70.2 Congenital and developmental myasthenia
  • 2015/16 ICD-10-CM G70.89 Other specified myoneural disorders
Approximate Synonyms
  • Amyotonia congenita
  • Benign congenital hypotonia
  • Cholinergic crisis
  • Disorder of neuromuscular transmission
  • Drug-induced myasthenia
  • Eaton Lambert syndrome without underlying malignancy
  • Eaton Lambert syndrome wo underlying malignancy
  • Hereditary motor end-plate disease
  • Hypotonia, benign congenital
  • Neuromuscular junction disorder
  • Synkinesis of face
ICD-9-CM Volume 2 Index entries containing back-references to 358.8:
  • Amyotonia 728.2
    • congenita 358.8
  • Disease, diseased - see also Syndrome
    • Oppenheim's 358.8
  • Disorder - see also Disease
  • Hypotonia, hypotonicity, hypotony 781.3
    • benign congenital 358.8
  • Oppenheim's disease 358.8
  • Pseudoparalysis
    • atonic, congenital 358.8
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 358.8 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.