How should I write the diagnosis for a patient with a history of acute coronary syndrome (NSTEMI), cardiomyopathy, and hypertension?

How to Write the Diagnosis

List the diagnoses in order of clinical priority and temporal relationship: start with the acute condition (NSTEMI), followed by the chronic underlying cardiac condition (cardiomyopathy with type specified), and then other chronic comorbidities (hypertension).

Recommended Diagnostic Format

The diagnosis should be structured as follows:

1. Acute Coronary Syndrome - Non-ST-Elevation Myocardial Infarction (NSTEMI)

   • This is the acute, life-threatening condition that requires immediate attention
   • Based on the 2025 ACC/AHA/ACEP/NAEMSP/SCAI guidelines, NSTEMI is defined by elevated cardiac troponin without ST-segment elevation on ECG, representing partial coronary artery occlusion with subendocardial ischemia 1

2. Cardiomyopathy (specify type if known)

   • Specify whether this is:
     • Ischemic cardiomyopathy (if related to prior coronary artery disease/MI)
     • Hypertrophic cardiomyopathy (if genetically determined with LV hypertrophy)
     • Dilated cardiomyopathy (if characterized by LV dilation and systolic dysfunction)
     • Other specified type
   • Include the left ventricular ejection fraction (LVEF) if available, as this impacts prognosis and treatment decisions 1

3. Hypertension

   • List as a chronic comorbidity
   • Note if controlled or uncontrolled if relevant

Example Diagnostic Statements

Complete format:

• "Non-ST-Elevation Myocardial Infarction (NSTEMI)"
• "Ischemic cardiomyopathy with reduced ejection fraction (LVEF 35%)" [or whatever the actual LVEF is]
• "Hypertension"

Alternative format if cardiomyopathy type unknown:

• "NSTEMI"
• "Cardiomyopathy, type unspecified (LVEF ___%)"
• "Hypertension"

Key Clinical Pitfalls to Avoid

• Don't bury the acute diagnosis: NSTEMI must be listed first as it drives immediate management decisions (antiplatelet therapy, anticoagulation, timing of coronary angiography) 1, 2

• Don't omit the LVEF: This is critical for risk stratification and determines eligibility for therapies like ICD placement and specific heart failure medications 1

• Specify cardiomyopathy type when possible: The distinction between ischemic and non-ischemic cardiomyopathy affects long-term management and prognosis. If the cardiomyopathy is secondary to prior MI events, document it as "ischemic cardiomyopathy" 2

• Consider temporal relationships: If this is a recurrent event, note "history of prior NSTEMI" or "recurrent ACS" to indicate the patient's higher risk profile 3

Additional Documentation Considerations

When writing the full clinical note, ensure you document:

• ECG findings: Presence or absence of ST-segment changes, T-wave inversions, or Q waves 1, 2
• Troponin levels: Elevated high-sensitivity cardiac troponin confirms NSTEMI diagnosis 1
• Risk stratification score: Consider documenting TIMI, GRACE, or other validated risk scores 2
• Coronary anatomy if known: Document prior PCI, stent locations, or CABG if applicable

This structured approach ensures clear communication of the patient's acute and chronic conditions while prioritizing the life-threatening diagnosis that requires immediate intervention.