N30.9Header code — not billable
Cystitis, unspecified
- Chapter
- 14. Diseases of the genitourinary system
- Category
- N30
- Effective date
- October 1, 2026
Related codes in category N30
N30CystitisN30.0Acute cystitisN30.00Acute cystitis without hematuriaYesN30.01Acute cystitis with hematuriaYesN30.1Interstitial cystitis (chronic)N30.10Interstitial cystitis (chronic) without hematuriaYesN30.11Interstitial cystitis (chronic) with hematuriaYesN30.2Other chronic cystitisN30.20Other chronic cystitis without hematuriaYesN30.21Other chronic cystitis with hematuriaYesN30.3TrigonitisN30.30Trigonitis without hematuriaYes
Frequently asked questions
What is ICD-10 code N30.9?
N30.9 is an ICD-10-CM diagnosis code for Cystitis, unspecified.
Is N30.9 a billable code?
No. N30.9 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is N30.9 in?
N30.9 falls under Chapter 14: Diseases of the genitourinary system.
When did N30.9 become effective?
N30.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to N30.9?
N30.9 belongs to category N30, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.