N30.90 — Cystitis, unspecified without hematuria

N30.90

ICD-10 Chapter 14: Genitourinary System — illustrative image — Chapter 14: Diseases of the genitourinary system (N00–N99) — illustrative image

What this code means

Cystitis is inflammation of the bladder, usually from infection; here without blood in the urine and without acuity stated.

Also called: cystitis, bladder inflammation.

When this code is used

Used for cystitis, unspecified, without haematuria.

Where it sits in ICD-10-CM

Code N30.90 belongs to Chapter 14: Diseases of the genitourinary system, which covers codes N00–N99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Pain or burning when urinating

Related anatomy

Bladder

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Frequently asked questions

What is ICD-10-CM code N30.90?

N30.90 is the ICD-10-CM diagnosis code for “Cystitis, unspecified without hematuria”. Cystitis is inflammation of the bladder, usually from infection; here without blood in the urine and without acuity stated.

When is code N30.90 used?

Used for cystitis, unspecified, without haematuria. It belongs to Chapter 14 of ICD-10-CM (Diseases of the genitourinary system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.