Non‐diabetic kidney disease in patients with diabetes undergoing native kidney biopsy

Diabetes is often assumed to cause chronic kidney disease (CKD) in patients with diabetes, though non‐diabetic pathology may coexist. We reviewed 84 patients with diabetes who underwent native kidney biopsy (2017–2023). Indications included active urinary sediment, nephrotic‐range proteinuria and rapid renal decline. Non‐diabetic pathology was found in 49% and mixed lesions in 21%, mainly IgA nephropathy, acute tubular necrosis and interstitial nephritis. Biopsy altered management in 23% of cases. These findings support the value of biopsy in patients with diabetes.