Specific code 2014 ICD-9-CM Diagnosis Code 277.81
Primary carnitine deficiency
  • Billable Code
  • Short description: Primary carnitine defncy.
  • ICD-9-CM 277.81 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 277.81 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Carnitine deficiency, primary
  • Renal carnitine transport defect
Clinical Information
  • An autosomal recessive inherited disorder caused by mutations in the slc22a5 gene. It is characterized by the presence of a defective protein called octn2 which is involved in the transportation of carnitine into the cells. This abnormality results in reduced energy production and accumulation of fatty acids in the tissues. Clinical manifestations of confusion, muscle weakness, hypoglycemia, encephalopathy and cardiomyopathy may be exacerbated during fasting.
Convert to ICD-10-CM: 277.81 converts directly to:
  • 2014 ICD-10-CM E71.41 Primary carnitine deficiency
ICD-9-CM Volume 2 Index entries containing back-references to 277.81:
  • Deficiency, deficient
    • carnitine 277.81
      • due to
      • iatrogenic 277.83
      • palmitoyltransferase (CPT1, CPT2) 277.85
      • palmityl transferase (CPT1, CPT2) 277.85
      • primary 277.81
      • secondary 277.84
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 277.81 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.