ICD-10-CM Code N28.84

Pyelitis cystica

Version 2020 Billable Code

Valid for Submission

N28.84 is a billable code used to specify a medical diagnosis of pyelitis cystica. The code is valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:N28.84
Short Description:Pyelitis cystica
Long Description:Pyelitis cystica

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 N28.84 are found in the index:


Diagnostic Related Groups

The ICD-10 code N28.84 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.

  • 689 - KIDNEY AND URINARY TRACT INFECTIONS WITH MCC
  • 690 - KIDNEY AND URINARY TRACT INFECTIONS WITHOUT MCC

Convert N28.84 to ICD-9

  • 590.3 - Pyeloureteritis cystica (Approximate Flag)

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


Urine and Urination

Your kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The bladder stores urine until you are ready to urinate. It swells into a round shape when it is full and gets smaller when empty. If your urinary system is healthy, your bladder can hold up to 16 ounces (2 cups) of urine comfortably for 2 to 5 hours.

You may have problems with urination if you have

  • Kidney failure
  • Urinary tract infections
  • An enlarged prostate
  • Bladder control problems like incontinence, overactive bladder, or interstitial cystitis
  • A blockage that prevents you from emptying your bladder

Some conditions may also cause you to have blood or protein in your urine. If you have a urinary problem, see your health care provider. Urinalysis and other urine tests can help to diagnose the problem. Treatment depends on the cause.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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