ICD-10-CM Code N28.8

Other specified disorders of kidney and ureter

Version 2020 Non-Billable Code

Not Valid for Submission

N28.8 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of other specified disorders of kidney and ureter. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:N28.8
Short Description:Other specified disorders of kidney and ureter
Long Description:Other specified disorders of kidney and ureter

Consider the following ICD-10 codes with a higher level of specificity:

  • N28.81 - Hypertrophy of kidney
  • N28.82 - Megaloureter
  • N28.83 - Nephroptosis
  • N28.84 - Pyelitis cystica
  • N28.85 - Pyeloureteritis cystica
  • N28.86 - Ureteritis cystica
  • N28.89 - Other specified disorders of kidney and ureter

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code N28.8:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • hydroureter N13.4
  • ureteric stricture with hydronephrosis N13.1
  • ureteric stricture without hydronephrosis N13.5

Code Classification

  • Diseases of the genitourinary system (N00–N99)
    • Other disorders of kidney and ureter (N25-N29)
      • Oth disorders of kidney and ureter, not elsewhere classified (N28)

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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Ureteral Disorders

Your kidneys make urine by filtering wastes and extra water from your blood. The urine travels from the kidneys to the bladder in two thin tubes called ureters.

The ureters are about 8 to 10 inches long. Muscles in the ureter walls tighten and relax to force urine down and away from the kidneys. Small amounts of urine flow from the ureters into the bladder about every 10 to 15 seconds.

Sometimes the ureters can become blocked or injured. This can block the flow of urine to the bladder. If urine stands still or backs up the ureter, you may get a urinary tract infections.

Doctors diagnose problems with the ureters using different tests. These include urine tests, x-rays, and examination of the ureter with a scope called a cystoscope. Treatment depends on the cause of the problem. It may include medicines and, in severe cases, surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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