ICD-10-CM Code N05.9

Unspecified nephritic syndrome with unspecified morphologic changes

Version 2020 Billable Code

Valid for Submission

N05.9 is a billable code used to specify a medical diagnosis of unspecified nephritic syndrome with unspecified morphologic changes. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code N05.9 might also be used to specify conditions or terms like anal atresia, bacterial nephritis, congenital nephritis, congenital nephritis, congenital nephritis, cytomegalovirus-induced glomerulonephritis, etc

Short Description:Unsp nephritic syndrome with unspecified morphologic changes
Long Description:Unspecified nephritic syndrome with unspecified morphologic changes

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code N05.9 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Anal atresia
  • Bacterial nephritis
  • Congenital nephritis
  • Congenital nephritis
  • Congenital nephritis
  • Cytomegalovirus-induced glomerulonephritis
  • De novo glomerulonephritis
  • De novo transplant disease
  • Dyschondrosteosis and nephritis syndrome
  • Exudative nephritis
  • Glomerular disease
  • Glomerulitis
  • Glomerulonephritis
  • Idiopathic glomerular disease
  • Idiopathic glomerulonephritis
  • Immunotactoid glomerulonephritis
  • Lowe Kohn Cohen syndrome
  • Membranous glomerulonephritis
  • Nephritic syndrome
  • Nephritic syndrome
  • Nephritis
  • Nephrotic syndrome associated with another disorder
  • Nephrotic syndrome secondary to glomerulonephritis
  • Nephrotic-nephritic syndrome
  • Non-amyloid fibrillary glomerulonephritis
  • Post-infectious glomerulonephritis
  • Post-infectious glomerulonephritis - Garland variety
  • Pulmonary renal syndrome
  • Radiation nephritis
  • Renal hematuria
  • Renal hematuria
  • Renal vasculitis
  • Shunt nephritis
  • Transplant glomerulopathy
  • Transplant glomerulopathy - early form
  • Transplant glomerulopathy - late form
  • Vasculitis with glomerulonephritis

Diagnostic Related Groups

The ICD-10 code N05.9 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert N05.9 to ICD-9

  • 583.0 - Proliferat nephritis NOS (Approximate Flag)
  • 583.4 - Rapidly prog nephrit NOS (Approximate Flag)
  • 583.9 - Nephritis NOS (Approximate Flag)

Code Classification

  • Diseases of the genitourinary system (N00–N99)
    • Glomerular diseases (N00-N08)
      • Unspecified nephritic syndrome (N05)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Kidney Diseases

You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters. It goes to your bladder, which stores the urine until you go to the bathroom.

Most kidney diseases attack the nephrons. This damage may leave kidneys unable to remove wastes. Causes can include genetic problems, injuries, or medicines. You have a higher risk of kidney disease if you have diabetes, high blood pressure, or a close family member with kidney disease. Chronic kidney disease damages the nephrons slowly over several years. Other kidney problems include

  • Cancer
  • Cysts
  • Stones
  • Infections

Your doctor can do blood and urine tests to check if you have kidney disease. If your kidneys fail, you will need dialysis or a kidney transplant.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

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