N30 — Cystitis
Is N30 billable?
No — N30 is a non-billable header code. N30 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 14 billable codes beneath N30.
Billable codes under this header
- N30.00Acute cystitis without hematuria
- N30.01Acute cystitis with hematuria
- N30.10Interstitial cystitis (chronic) without hematuria
- N30.11Interstitial cystitis (chronic) with hematuria
- N30.20Other chronic cystitis without hematuria
- N30.21Other chronic cystitis with hematuria
- N30.30Trigonitis without hematuria
- N30.31Trigonitis with hematuria
- N30.40Irradiation cystitis without hematuria
- N30.41Irradiation cystitis with hematuria
- N30.80Other cystitis without hematuria
- N30.81Other cystitis with hematuria
- N30.90Cystitis, unspecified without hematuria
- N30.91Cystitis, unspecified with hematuria
N30 at a glance
| Code | N30 |
|---|---|
| Description | Cystitis |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with N30 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- prostatocystitis (N41.3)
Use additional code
Report an additional code alongside N30 to fully describe the condition. N30 is sequenced first.
- code to identify infectious agent (B95-B97)
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N30, but a patient may have both at the same time. When documentation supports it, N30 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from N30-N39
The conditions below are not part of N30, but a patient may have both at the same time. When documentation supports it, N30 and the excluded code may both be reported.
What codes fall under N30? (7)
How long has N30 existed?
N30 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with N30?
ICD-10-CM declares these codes mutually exclusive with N30 — exactly one of each pair can be correct for a given encounter.