Specific code 2015 ICD-9-CM Diagnosis Code 434.90
Cerebral artery occlusion, unspecified without mention of cerebral infarction
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 434.90 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 434.90 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: 434.90 converts approximately to:
  • 2015/16 ICD-10-CM I66.9 Occlusion and stenosis of unspecified cerebral artery
Approximate Synonyms
  • Bilat anterior cerebral artery occlusion
  • Bilat middle cerebral artery occlusion
  • Bilat posterior cerebral artery occlusion
  • Bilateral anterior cerebral artery occlusion
  • Bilateral anterior cerebral artery occlusions
  • bilateral middle cerebral artery occlusion
  • Bilateral middle cerebral artery occlusions
  • bilateral posterior cerebral artery occlusion
  • Bilateral posterior cerebral artery occlusions
  • Cerebral artery occlusion
  • Left anterior cerebral artery occlusion
  • Left middle cerebral artery occlusion
  • Left posterior cerebral artery occlusion
  • Occlusion of cerebral artery
  • Right anterior cerebral artery occlusion
  • Right middle cerebral artery occlusion
  • Right posterior cerebral artery occlusion
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 434.90 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.