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  6. 2024 ICD-10-CM Code N30.9

2024 ICD-10-CM Diagnosis Code N30.9

Cystitis, unspecified

ICD-10-CM Code:
N30.9
ICD-10 Code for:
Cystitis, unspecified
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the genitourinary system
    (N00–N99)
    • Other diseases of the urinary system
      (N30-N39)
      • Cystitis
        (N30)

N30.9 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of cystitis, unspecified. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like N30.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding Applicable to Cystitis, unspecified

Non-specific codes like N30.9 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for cystitis, unspecified:

  • Use N30.90 for Cystitis, unspecified without hematuria - BILLABLE CODE

  • Use N30.91 for Cystitis, unspecified with hematuria - BILLABLE CODE

Clinical Information

  • Cystitis

    inflammation of the urinary bladder, either from bacterial or non-bacterial causes. cystitis is usually associated with painful urination (dysuria), increased frequency, urgency, and suprapubic pain.

  • Cystitis, Interstitial

    a condition with recurring discomfort or pain in the urinary bladder and the surrounding pelvic region without an identifiable disease. severity of pain in interstitial cystitis varies greatly and often is accompanied by increased urination frequency and urgency.

  • Urinary Bladder

    a musculomembranous sac along the urinary tract. urine flows from the kidneys into the bladder via the ureters (ureter), and is held there until urination.

Patient Education


Bladder Diseases

The bladder is a hollow organ in your lower abdomen that stores urine. Many conditions can affect your bladder. Some common ones are:

  • Cystitis - inflammation of the bladder, often from an infection
  • Urinary incontinence - loss of bladder control
  • Overactive bladder - a condition in which the bladder squeezes urine out at the wrong time
  • Interstitial cystitis - a chronic problem that causes bladder pain and frequent, urgent urination
  • Bladder cancer

Doctors diagnose bladder diseases using different tests. These include urine tests, x-rays, and an examination of the bladder wall 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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Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.