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  6. 2025 ICD-10-CM Code N30

2025 ICD-10-CM Diagnosis Code N30

Cystitis

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

N30 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. The code is not specific and is NOT valid for the year 2025 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.

Specific Coding Applicable to Cystitis

Non-specific codes like N30 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:

  • N30.0 for Acute cystitis - NON-BILLABLE CODE

  • Use N30.00 for Acute cystitis without hematuria - BILLABLE CODE

  • Use N30.01 for Acute cystitis with hematuria - BILLABLE CODE

  • N30.1 for Interstitial cystitis (chronic) - NON-BILLABLE CODE

  • Use N30.10 for Interstitial cystitis (chronic) without hematuria - BILLABLE CODE

  • Use N30.11 for Interstitial cystitis (chronic) with hematuria - BILLABLE CODE

  • N30.2 for Other chronic cystitis - NON-BILLABLE CODE

  • Use N30.20 for Other chronic cystitis without hematuria - BILLABLE CODE

  • Use N30.21 for Other chronic cystitis with hematuria - BILLABLE CODE

  • N30.3 for Trigonitis - NON-BILLABLE CODE

  • Use N30.30 for Trigonitis without hematuria - BILLABLE CODE

  • Use N30.31 for Trigonitis with hematuria - BILLABLE CODE

  • N30.4 for Irradiation cystitis - NON-BILLABLE CODE

  • Use N30.40 for Irradiation cystitis without hematuria - BILLABLE CODE

  • Use N30.41 for Irradiation cystitis with hematuria - BILLABLE CODE

  • N30.8 for Other cystitis - NON-BILLABLE CODE

  • Use N30.80 for Other cystitis without hematuria - BILLABLE CODE

  • Use N30.81 for Other cystitis with hematuria - BILLABLE CODE

  • N30.9 for Cystitis, unspecified - NON-BILLABLE CODE

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

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

Code Classification

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

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, Hemorrhagic

    a diffuse inflammation of the urinary bladder characterized by hematuria due to bleeding from the bladder mucosa. hemorrhagic cystitis is most often associated with infections, e.g., human adenovirus infecions, but may also be due to other noninfectious etiologies: chemotherapy with certain drugs, e.g., cyclophosphamide and ifosfamide, and radiotherapy.

  • 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.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
  • code to identify infectious agent B95 B97

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.

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


[Learn More in MedlinePlus]

Bladder Infection (Urinary Tract Infection—UTI) in Adults

An overview of bladder infection in adults, which is a type of urinary tract infection. Describes symptoms, causes, diagnosis, treatment, and prevention.
[Learn More in MedlinePlus]

Bladder Infection (Urinary Tract Infection—UTI) in Children

Read about bladder infections, as well as pain and urgency with urination, in children. Learn about the symptoms, causes, diagnosis, and treatments.
[Learn More in MedlinePlus]

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.