ICD-10 Code I82.3 – Embolism and thrombosis of renal vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.3 – Embolism and thrombosis of renal vein
What it is
I82.3 identifies a clot or embolus in the renal vein, the vessel that drains blood from the kidney. Use it when the record documents renal vein thrombosis or embolism affecting one or both kidneys.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include flank pain, hematuria, reduced kidney function, and possible swelling or tenderness related to renal venous obstruction.
When to use this code
Use I82.3 when the provider documents renal vein thrombosis, renal vein embolism, or both. It applies whether the condition is acute or chronic if the note clearly identifies the renal vein as the site.
Code it from imaging, operative, or specialist documentation that confirms the diagnosis. If the record only mentions kidney infarction, nephrotic syndrome, or another cause without renal vein involvement, check documentation before assigning this code.
Do not use for
Do not use I82.3 for thrombosis in other veins, such as the renal artery or inferior vena cava. Do not assume renal vein involvement when it is not explicitly documented.
Coding tip
Look for the exact vessel name and laterality details in the chart, then code the renal vein diagnosis only when it is clearly stated.