Embolism and thrombosis of renal vein

This code signifies the presence of a blood clot (embolism or thrombosis) within the renal vein, which is the major blood vessel draining blood from the kidney. This obstruction can impede blood flow from the kidney, potentially leading to renal dysfunction or infarction.

Use this code when documentation clearly indicates a diagnosis of renal vein thrombosis or embolism, often presenting with flank pain, hematuria, or acute kidney injury. It is supported by imaging studies such as CT angiography, MRI, or renal venography confirming the presence of a thrombus in the renal vein.

• Differentiate from other renal vascular disorders, such as renal artery thrombosis (I74.2).
• Specify laterality if documented (e.g., left, right, bilateral) using appropriate subcodes.
• Consider sequencing with underlying conditions that may predispose to thrombosis, such as nephrotic syndrome or hypercoagulable states.