Groundbreaking: First-Ever HCC RAF Score Accessible Through REST API
First-Ever HCC RAF Score Accessible Through REST API
Check Now
Image depicting the concept of elevating provider support and enhancing concurrent coding for risk adjustment in healthcare.
Elevate Provider Support:
Enhance Your Concurrent Coding
for Risk Adjustment
Check Now
ICD-10-CM Codes I00-I99 I20-I25 I21 I21.09
icd10cm search icon
Search Suggestions:

ICD-10-CM Diagnosis Code I21.09

Effective Date: 10/01/2015 To 09/30/2025

ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall

CMS-HCC-V24 CMS-HCC-V28 RxHCC Age Gender Maternity Acute or Chronic MCC
86 228 188 Adult -- -- Acute Yes
Applicable To for I21.09:

  • Acute transmural myocardial infarction of anterior wall

  • Anteroapical transmural (Q wave) infarction (acute)

  • Anterolateral transmural (Q wave) infarction (acute)

  • Anteroseptal transmural (Q wave) infarction (acute)

  • Transmural (Q wave) infarction (acute) (of) anterior (wall) NOS

Back-references to I21.09
  • Infarct, infarction
    • myocardium, myocardial(acute) (with stated duration of 4 weeks or less) I21.9
      • ST elevation(STEMI) I21.3
        • anterior(anteroapical) (anterolateral) (anteroseptal) (Q wave) (wall) I21.09
          • involving
            • coronary artery of anterior wall NEC I21.09
          • transmural(see also, Infarct, myocardium, ST elevation, by site) I21.3
            • anterior(anteroapical) (anterolateral) (anteroseptal) (Q wave) (wall) NEC I21.09
          • Chapter, Section and Diagnosis Prefix for I21.09
            I00-I99 :

            Diseases of the circulatory system

            I20-I25 :

            Ischemic heart diseases

            I21 :

            Acute myocardial infarction