2021 ICD-10-CM Codes for Cystitis (N30)

Instructional Notations

Use Additional Code Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

  • code to identify infectious agent B95 B97

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

    • ICD-10 Index

      • Diseases of the genitourinary system (N00–N99)

        • Other diseases of the urinary system (N30-N39)

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