Specific code 2014 ICD-9-CM Diagnosis Code 413.1
Prinzmetal angina
  • Billable Code
  • ICD-9-CM 413.1 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 413.1 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Angina, Prinzmetal
  • PRINZMETAL ANGINA
Clinical Information
  • (syn. Prinzmetal's angina or coronary artery vasospasm). It usually occurs spontaneously, and unlike typical angina, it nearly always occurs when a person is at rest and does not require physical exertion. It frequently is associated with transient st-segment elevation.
  • (syn. Prinzmetal's angina or coronary artery vasospasm). It usually occurs spontaneously, and unlike typical angina, it nearly always occurs when a person is at rest and does not require physical exertion. It frequently is associated with transient st-segment elevation. (nih roadmap cardiovascular data standards working group)
  • A clinical syndrome characterized by the development of chest pain at rest with concomitant transient st segment elevation in the electrocardiogram, but with preserved exercise capacity.
  • A variant form of angina pectoris caused by coronary artery vasospasm, usually occurring spontaneously and frequently associated with st segment elevation.
Applies To
  • Variant angina pectoris
Convert to ICD-10-CM: 413.1 converts directly to:
  • 2014 ICD-10-CM I20.1 Angina pectoris with documented spasm
ICD-9-CM Volume 2 Index entries containing back-references to 413.1:
  • Angina (attack) (cardiac) (chest) (effort) (heart) (pectoris) (syndrome) (vasomotor) 413.9
    • Prinzmetal's 413.1
    • variant 413.1
  • Prinzmetal's angina 413.1
  • Vasospasm 443.9
    • coronary 413.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 413.1 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.