Contrast-induced nephropathy
ICD-10 N14.11 is a billable code used to indicate a diagnosis of contrast-induced nephropathy.
Contrast-induced nephropathy (CIN) is a form of acute kidney injury that occurs following the administration of contrast media, typically during imaging procedures such as CT scans or angiography. It is characterized by a sudden decline in renal function, usually defined as an increase in serum creatinine levels of 0.5 mg/dL or more, or a 25% increase from baseline within 48 hours of contrast exposure. Risk factors for CIN include pre-existing renal impairment, diabetes mellitus, dehydration, and the use of nephrotoxic medications. The pathophysiology involves renal vasoconstriction, oxidative stress, and tubular cell injury due to the contrast agent. Clinically, patients may present with oliguria, elevated blood urea nitrogen (BUN), and creatinine levels. Management includes hydration, avoidance of nephrotoxic agents, and monitoring renal function post-procedure. In severe cases, dialysis may be required. Early recognition and intervention are crucial to prevent long-term renal damage.
Detailed records of contrast media used, patient renal function baseline, and any pre-existing conditions.
Patients undergoing CT scans or angiography who have pre-existing renal impairment.
Radiologists must ensure that patients are adequately hydrated and that renal function is monitored post-procedure.
Comprehensive assessment of renal function, including serum creatinine levels and urine output.
Management of patients presenting with acute kidney injury following contrast exposure.
Nephrologists should document any interventions taken to mitigate renal damage.
Used for imaging in patients with suspected renal issues.
Document the indication for the procedure and any pre-existing renal conditions.
Radiologists should ensure that renal function is assessed prior to the procedure.
Key risk factors include pre-existing renal impairment, diabetes mellitus, dehydration, and the use of nephrotoxic medications. Patients with these conditions should be monitored closely when undergoing procedures involving contrast media.
