I24.0 Acute coronary thrombosis not resulting in myocardial infarction

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Acute coronary (artery) (vein) embolism not resulting in myocardial infarction
• Acute coronary (artery) (vein) occlusion not resulting in myocardial infarction
• Acute coronary (artery) (vein) thromboembolism not resulting in myocardial infarction

Excludes1 (never code together)

• atherosclerotic heart disease (I25.1-)

Applies from I24 Other acute ischemic heart diseases

Excludes1 (never code together)

• angina pectoris (I20.-)
• transient myocardial ischemia in newborn (P29.4)

Excludes2 (not included here)

• non-ischemic myocardial injury (I5A)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 229 — Unstable Angina and Other Acute Ischemic Heart Disease
• CMS-HCC V22: HCC 87 — Unstable Angina and Other Acute Ischemic Heart Disease
• RxHCC V08: HCC 188 — Coronary Artery Disease
• ESRD V24: HCC 87

MS-DRG index

Defines the logic of DRG(s) 311 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 411.81 Acute coronary occlusion without myocardial infarction

Code annotations containing back-references to I24.0

Back-references to I24.0

• Type 1 Excludes: I25.82 Chronic total occlusion of coronary artery ("acute coronary occlusion without myocardial infarction (I24.0)")

Back-references to I24

• Type 2 Excludes: I5A Non-ischemic myocardial injury (non-traumatic) ("other acute ischemic heart diseases (I24.-)")
• Type 2 Excludes: I74 Arterial embolism and thrombosis ("coronary embolism and thrombosis (I21-I25)")
• Type 2 Excludes: I82 Other venous embolism and thrombosis ("coronary (I21-I25)")

Diagnosis Index entries for I24.0

• Embolism (multiple) (paradoxical) › artery › coronary › not resulting in infarction
• Occlusion, occluded › artery › coronary (acute) (thrombotic) (without myocardial infarction)
• Occlusion, occluded › coronary (artery) (vein) (thrombotic) › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › artery, arteries (postinfectional) › coronary › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › coronary (artery) (vein) › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › parietal › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › ventricle › not resulting in infarction

Nearby codes

• I24 Other acute ischemic heart diseases
• I24.0 Acute coronary thrombosis not resulting in myocardial infarction (this code)
• I24.1 Dressler's syndrome
• I24.8 Other forms of acute ischemic heart disease
• I24.81 Acute coronary microvascular dysfunction
• I24.89 Other forms of acute ischemic heart disease
• I24.9 Acute ischemic heart disease, unspecified