Acute pulmonary edema

This code represents a sudden, severe accumulation of fluid in the air sacs of the lungs, leading to impaired gas exchange and significant respiratory distress. It is characterized by rapid onset and is often a life-threatening condition requiring immediate medical intervention.

Use this code when documentation clearly indicates an acute onset of pulmonary edema, typically presenting with dyspnea, orthopnea, frothy sputum, and crackles on lung auscultation. This diagnosis is often supported by chest X-ray findings of diffuse bilateral infiltrates and clinical signs of fluid overload.

• Differentiate from chronic pulmonary edema (I50.1) or pulmonary congestion not specified as acute.
• Always look for an underlying cause, such as acute heart failure (I50.21, I50.23, I50.31, I50.33, I50.41, I50.43) or renal failure, and code it as a primary diagnosis if it is the etiology.
• Ensure documentation specifies "acute" to support the use of this code, as opposed to unspecified or chronic forms.