Specific code 2012 ICD-9-CM Diagnosis Code 997.91
Complications affecting other specified body systems, not elsewhere classified, hypertension
  • Short description: Surg comp - hypertension.
  • ICD-9-CM 997.91 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 997.91 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2012 version of ICD-9-CM 997.91.
  • More recent version(s) of ICD-9-CM 997.91: 2013 2014 2015.
Disease Synonyms
  • HTN complication after surgery
  • Hypertension complication after surgery
  • Hypertensive disorder, systemic arterial
  • Postoperative hypertension
997.91 Excludes
Convert to ICD-10-CM: 997.91 converts directly to:
  • 2015 ICD-10-CM I97.3 Postprocedural hypertension
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 997.91 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 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.