Specific code 2015 ICD-9-CM Diagnosis Code 359.23
Myotonic chondrodystrophy
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 359.23 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 359.23 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).
Convert to ICD-10-CM: 359.23 converts directly to:
  • 2015/16 ICD-10-CM G71.13 Myotonic chondrodystrophy
Approximate Synonyms
  • Schwartz-Jampel syndrome (disorder)
Clinical Information
  • A syndrome of short stature; generalized myotonia with contractures of major joints, microstomia, and muscle rigidity; ocular anomalies, mainly blepharophimosis; and characteristic facies marked by pinched or frozen smile puckered lips. Some degree of mental retardation occurs in about 25% of patients. The affected children usually appear normal at birth and the symptoms become recognizable at 1 to 3 years of age. Malignant hyperthermia is a potentially lethal hazard during anesthesia
Applies To
  • Congenital myotonic chondrodystrophy
  • Schwartz-Jampel disease
ICD-9-CM Volume 2 Index entries containing back-references to 359.23:
  • Chondrodystrophy (familial) (hypoplastic) 756.4
    • myotonic (congenital) 359.23
  • Disease, diseased - see also Syndrome
    • Schwartz-Jampel 359.23
  • Schwartz (-Jampel) syndrome 359.23
  • Syndrome - see also Disease
    • Schwartz (-Jampel) 359.23
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 359.23 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 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.