ICD-10 Code J81 – Pulmonary edema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J81 – Pulmonary edema
What it is
Pulmonary edema means fluid has accumulated in the lungs, making breathing harder. Use this code when documentation identifies pulmonary edema without a more specific underlying cause.
Clinical signs
Common findings include shortness of breath, cough, and crackles on lung exam. Clinical features vary; refer to documentation for the cause and whether the edema is acute, chronic, or unspecified.
When to use this code
Use J81 when the provider documents pulmonary edema as a diagnosis, especially when it is the main reason for evaluation or treatment. It may appear with heart failure, fluid overload, or other conditions, but you should code the documented edema when it is separately reported. If the record does not specify the cause, code the documented condition and check documentation.
Do not use for
Do not use this code for pleural effusion, pneumonia, or other lung infiltrates unless pulmonary edema is specifically documented. Check documentation if the note describes respiratory distress without confirming edema.
Coding tip
Confirm whether the edema is stated as pulmonary edema or simply fluid overload before assigning J81.