ICD-10 Code
International Classification of Diseases, 10th Revision
Aug 20, 2017
  ICD-10 Code for Subsequent ST elevation (STEMI) myocardial infarction of unspecified site I22.9

I22.9 is a valid1 ICD 10 diagnosis code.

I22.9 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 I22 Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction

• 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
  • Subsequent acute myocardial infarction of unspecified site
  • Subsequent myocardial infarction (acute) NOS

Related Terms to “Subsequent ST elevation (STEMI) myocardial infarction of unspecified site”

  • Infarct, infarction
See the 2017 ICD-10-CM Coding Guidelines.

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.