ICD-10-CM Billable Code

N03.1

Chronic nephritic syndrome with focal and segmental glomerular lesions

Clinical Classification Guidelines

Inclusion Terms

  • Chronic nephritic syndrome with focal and segmental hyalinosis
  • Chronic nephritic syndrome with focal and segmental sclerosis
  • Chronic nephritic syndrome with focal glomerulonephritis

Medical Intelligence & Overview

Chronic nephritic syndrome with focal and segmental glomerular lesions (ICD-10 N03.1) is a kidney condition characterized by ongoing inflammation of the glomeruli—the tiny filters in the kidneys responsible for removing waste and excess fluid from the blood. This form of nephritic syndrome involves specific types of damage called focal and segmental lesions, which affect only parts of certain glomeruli. Over time, this condition can impair kidney function and lead to complications such as impaired filtration, proteinuria, and, in severe cases, kidney failure.

Causes & Symptoms

Clinical Causes: Autoimmune diseases such as lupus erythematosus Infections that affect the kidneys Certain medications or toxins causing kidney damage Genetic predispositions to kidney diseases Other forms of glomerulonephritis, such as IgA nephropathy or focal segmental glomerulosclerosis

Key Symptoms: Hematuria (blood in the urine) Proteinuria (excess protein in urine) Swelling or edema, especially in the legs, ankles, and around the eyes High blood pressure Decreased urine output Fatigue and general feeling of illness

Diagnostic & Treatment

Diagnosis Path: Diagnosis typically involves a combination of medical history review, physical examination, laboratory tests, and kidney biopsy. Urinalysis can detect blood and protein in the urine, while blood tests evaluate kidney function and overall health. A kidney biopsy provides a tissue sample to examine the specific focal and segmental lesions, confirming the diagnosis and helping guide treatment options.

Treatment Protocols: Treatment strategies aim to control inflammation, manage symptoms, and slow disease progression. Common approaches include:

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 N03.1 a billable ICD-10 code?
Yes, N03.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report N03.1?
Clinical documentation must specify the nature of Chronic nephritic syndrome with focal and segmental glomerular lesions and any associated comorbidities for accurate reporting.

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Clinical Meta Tags

syndrome nephritic glomerular chronic lesions segmental focal