ICD-10 Code I50.811 – Acute right heart failure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I50.811 – Acute right heart failure
What it is
Acute right heart failure means the right side of the heart is suddenly unable to pump blood effectively. It is documented when the clinician identifies a new or sudden worsening right-sided pumping problem.
Clinical signs
Clinical features may include jugular venous distention, peripheral edema, hepatic congestion, or signs of systemic venous backup. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record specifically states acute right heart failure or acute right-sided heart failure. It may also apply when the provider clearly documents acute cor pulmonale or acute right ventricular failure, if supported in the note. Check documentation for laterality and acuity.
Do not use for
Do not use it for chronic right heart failure, unspecified heart failure, or left-sided heart failure without right-sided involvement. If the chart does not clearly identify acute right heart failure, check documentation.
Coding tip
Code the condition exactly as documented and confirm whether acute, chronic, or acute on chronic is stated.