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  5. Category N30
Category N30

Cystitis

Clinical Classification Guidelines

Specific Diagnosis Codes

Acute cystitis
N30.0
Acute cystitis without hematuria
N30.00
Acute cystitis with hematuria
N30.01
Interstitial cystitis (chronic)
N30.1
Interstitial cystitis (chronic) without hematuria
N30.10
Interstitial cystitis (chronic) with hematuria
N30.11
Other chronic cystitis
N30.2
Other chronic cystitis without hematuria
N30.20
Other chronic cystitis with hematuria
N30.21
Trigonitis
N30.3
Trigonitis without hematuria
N30.30
Trigonitis with hematuria
N30.31
Irradiation cystitis
N30.4
Irradiation cystitis without hematuria
N30.40
Irradiation cystitis with hematuria
N30.41
Other cystitis
N30.8
Other cystitis without hematuria
N30.80
Other cystitis with hematuria
N30.81
Cystitis, unspecified
N30.9
Cystitis, unspecified without hematuria
N30.90
Cystitis, unspecified with hematuria
N30.91
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Data updated for October 2025 release.

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