ICD-10-CM N30: Cystitis

ICD-10-CM Diagnosis Code (2025)

Official Description for N30

Cystitis

Coding Notes & Guidelines for N30

Excludes1: Not Coded Here

prostatocystitis (N41.3)

Excludes1: Not Coded Here
  • irradiation cystitis (N30.4-)
  • trigonitis (N30.3-)
Use Additional Code

code to identify infectious agent (B95-B97)

Inclusion Terms

Urethrotrigonitis

Inclusion Terms

Abscess of bladder

Child Codes (More Specific Codes for N30):

N30.0 - Acute cystitis N30.00 - Acute cystitis without hematuria N30.01 - Acute cystitis with hematuria N30.1 - Interstitial cystitis (chronic) N30.10 - Interstitial cystitis (chronic) without hematuria N30.11 - Interstitial cystitis (chronic) with hematuria N30.2 - Other chronic cystitis N30.20 - Other chronic cystitis without hematuria N30.21 - Other chronic cystitis with hematuria N30.3 - Trigonitis N30.30 - Trigonitis without hematuria N30.31 - Trigonitis with hematuria N30.4 - Irradiation cystitis N30.40 - Irradiation cystitis without hematuria N30.41 - Irradiation cystitis with hematuria N30.8 - Other cystitis N30.80 - Other cystitis without hematuria N30.81 - Other cystitis with hematuria N30.9 - Cystitis, unspecified N30.90 - Cystitis, unspecified without hematuria N30.91 - Cystitis, unspecified with hematuria

About ICD-10-CM Code N30 (Cystitis)

ICD-10-CM code N30 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N30 became effective on October 1, 2024.

This page provides detailed information about N30 - Cystitis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Cystitis.