| N30 | Cystitis |
| | Acute cystitis |
| | Acute cystitis, without hematuria |
| | Acute cystitis, with hematuria |
| | Interstitial cystitis (chronic) |
| | Interstitial cystitis (chronic), without hematuria |
| | Interstitial cystitis (chronic), with hematuria |
| | Other chronic cystitis |
| | Other chronic cystitis, without hematuria |
| | Other chronic cystitis, with hematuria |
| | Trigonitis |
| | Trigonitis, without hematuria |
| | Trigonitis, with hematuria |
| | Irradiation cystitis |
| | Irradiation cystitis, without hematuria |
| | Irradiation cystitis, with hematuria |
| | Other cystitis |
| | Other cystitis, without hematuria |
| | Other cystitis, with hematuria |
| | Cystitis, unspecified |
| | Cystitis, unspecified, without hematuria |
| | Cystitis, unspecified, with hematuria |
