ICD-10 Code
International Classification of Diseases, 10th Revision
Apr 20, 2019

See: Angina pectoris

  ICD-10 Code for Unstable angina I20.0

I20.0 is a valid1 ICD 10 diagnosis code.

I20.0 is valid for submission for HIPAA-covered transactions.

Chapter 9 Diseases of the circulatory system (I00-I99)
Section I20-I25 Ischemic heart diseases (I20-I25)
Category I20 Angina pectoris

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Accelerated angina
  • Crescendo angina
  • De novo effort angina
  • Intermediate coronary syndrome
  • Preinfarction syndrome
  • Worsening effort angina
See also ICD 10 code for

Related Terms to “Unstable angina”

  • Angina(attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) - I20.9
    • unstable - I20.0
  • Impending
    • coronary syndrome - I20.0
    • myocardial infarction - I20.0
  • Infarct, infarction
    • impending(myocardium) - I20.0
  • SyndromeSee also Disease
    • coronary
      • insufficiency or intermediate - I20.0
    • impending coronary - I20.0
    • intermediate coronary(artery) - I20.0
    • preinfarction - I20.0
See the ICD-10-CM Coding Guidelines.

Questions related to I20.0 Unstable angina

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.