ICD-10-CM Billable Code

N04.B1

Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN)

Clinical Classification Guidelines

Medical Intelligence & Overview

Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN) is a kidney condition characterized by inflammation and damage to the glomeruli, the tiny filtering units in the kidneys. This condition leads to significant protein loss in the urine, swelling, and other related symptoms. The term 'idiopathic' indicates that the exact cause is unknown, and 'immune complex' refers to the involvement of immune system components in damaging the kidney tissues.

Causes & Symptoms

Clinical Causes: The precise cause of IC-MPGN remains unknown (idiopathic), but it involves immune system abnormalities. Immune complexes, which are groups of immune system proteins and other substances, deposit in the glomeruli and trigger inflammation. Potential environmental triggers or genetic factors may influence disease development, though specific causes are not established.

Key Symptoms: Swelling in the ankles, legs, or around the eyes (edema) Foamy or frothy urine due to high protein content (proteinuria) Weight gain from fluid retention Fatigue and tiredness Reduced urination or dark-colored urine High blood pressure (hypertension) Elevated levels of cholesterol and triglycerides in the blood

Diagnostic & Treatment

Diagnosis Path: Urine tests to detect high levels of protein (proteinuria) Blood tests to assess kidney function and look for signs of inflammation Kidney biopsy to examine tissue samples for characteristic changes associated with IC-MPGN Imaging studies such as ultrasound to evaluate kidney size and structure

Treatment Protocols: Immunosuppressive medications to reduce immune system activity and inflammation Corticosteroids to decrease inflammation and immune response Angiotensin-converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs) to control blood pressure and decrease protein loss Diuretics to help reduce swelling and excess fluid retention Dietary modifications, including reduced salt intake and limit of protein in some cases Regular monitoring of kidney function and symptoms to adjust treatment plans accordingly In severe cases, other therapies like plasma exchange or additional immunosuppressive agents may be considered

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is N04.B1 a billable ICD-10 code?
Yes, N04.B1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report N04.B1?
Clinical documentation must specify the nature of Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN) and any associated comorbidities for accurate reporting.

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Clinical Meta Tags

membranoproliferative syndrome immune complex nephrotic idiopathic glomerulonephritis