2026 ICD-10-CM Diagnosis Code N30.10Interstitial cystitis (chronic) without hematuria

ICD-10-CM Codes›N00–N99›N30-N39›N30

ICD-10-CM N30.10
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N30.10 is a billable ICD-10-CM diagnosis code for interstitial cystitis (chronic) without hematuria. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 689 through 690. Coders also document this condition as chronic cystitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Urinary tract infections.

This medical diagnosis code is frequently used in Family Practice, Internal Medicine, OB/GYN, and Pediatrics medical specialties to designate conditions such urinary tract infection, cystitis.

Code Identity

ICD-10-CM Code
N30.10
Billable Status
Yes — Valid for Submission
Code Describes
Interstitial cystitis (chronic) without hematuria
Short Description
Interstitial cystitis (chronic) without hematuria
Same as the full description in the CMS dataset.
Parent Code
N30.1
Interstitial cystitis (chronic)

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN30-N39Other diseases of the urinary system
CategoryN30Cystitis
This CodeN30.10Interstitial cystitis (chronic) without hematuria

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chronic cystitis
  • Chronic ulcerating interstitial cystitis
  • Panmural cystitis
  • Panmural fibrosis of urinary bladder
  • Submucous cystitis
  • Ulcerative cystitis

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cystitis(exudative) (hemorrhagic) (septic) (suppurative)
      • chronic
        • interstitial

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN004
Urinary tract infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Chronic Cystitis

    recurrent infections of the urinary bladder.

Patient EducationClinical

Interstitial Cystitis

Interstitial cystitis (IC) is a condition that causes discomfort or pain in the bladder and a need to urinate frequently and urgently. It is far more common in women than in men. The symptoms vary from person to person. Some people may have pain without urgency or frequency. Others have urgency and frequency without pain.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert N30.10 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
595.1 Chr interstit cystitis
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N30.10Overview

Is N30.10 (Interstitial cystitis (chronic)) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report interstitial cystitis (chronic) without hematuria on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N30.10 group to?

When interstitial cystitis (chronic) without hematuria is the principal diagnosis on an inpatient stay, it groups to MS-DRG 689, 690, with relative weights from 0.8095 to 1.1603 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N30.10?

Under the General Equivalence Mappings, interstitial cystitis (chronic) without hematuria converts to ICD-9-CM 595.1 (chr interstit cystitis). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.