ICD-10 Code I50.41 – Acute combined systolic (congestive) and diastolic (congestive) heart failure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I50.41 – Acute combined systolic (congestive) and diastolic (congestive) heart failure
What it is
This code identifies an acute heart failure episode with both systolic and diastolic dysfunction. Use it when documentation states the patient has combined congestive heart failure affecting both pumping and filling function.
Clinical signs
Typical findings include acute shortness of breath, fluid retention, pulmonary congestion, and reduced exercise tolerance. Clinical features vary; refer to documentation for evidence of both systolic and diastolic involvement.
When to use this code
Use I50.41 when the provider documents acute combined systolic and diastolic congestive heart failure, or clearly states acute decompensated heart failure with both components. It may be supported by imaging, exam findings, or cardiology assessment. Check documentation if the type is not explicit.
Do not use for
Do not use this code for isolated systolic heart failure, isolated diastolic heart failure, or chronic combined heart failure without an acute component. If the record is nonspecific, code the documented heart failure type instead.
Coding tip
Query the provider when acute, systolic, and diastolic details are not clearly linked in the record.