Specific code 2009 ICD-9-CM Diagnosis Code 433.20
Occlusion and stenosis of vertebral artery without cerebral infarction
  • Short description: OCL VRTB ART WO INFRCT.
  • ICD-9-CM 433.20 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 433.20 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 2009 version of ICD-9-CM 433.20.
  • More recent version(s) of ICD-9-CM 433.20: 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 433.20 converts approximately to:
  • 2015/16 ICD-10-CM I65.09 Occlusion and stenosis of unspecified vertebral artery
Approximate Synonyms
  • Left vertebral artery occlusion
  • Left vertebral artery stenosis
  • Left vertebral artery thrombosis
  • Occlusion of L vertebral artery
  • Occlusion of left vertebral artery
  • Occlusion of R vertebral artery
  • Occlusion of right vertebral artery
  • Occlusion of vertebral artery
  • Right vertebral artery occlusion
  • Right vertebral artery stenosis
  • Right vertebral artery thrombosis
  • Stenosis of L vertebral artery
  • Stenosis of left vertebral artery
  • Stenosis of R vertebral artery
  • Stenosis of right vertebral artery
  • Stenosis of vertebral artery
  • Thrombosis of vertebral artery
  • Thrombosis, vertebral artery
  • Vertebral artery embolism
  • Vertebral artery obstruction
  • Vertebral artery occlusion
  • Vertebral artery stenosis
  • Vertebral artery thrombosis
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 433.20 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 2009 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.