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N30.0

⚠ Non-billable (Header)

Acute cystitis

Diseases of the genitourinary system (N00-N99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with N30.0

  • • irradiation cystitis (N30.4-)
  • • trigonitis (N30.3-)

❌ Excludes1

inherited from N30

Rules from parent category N30: Cystitis

  • • prostatocystitis (N41.3)

📋 Code Instructions

from N30
  • • code to identify infectious agent (B95-B97)

Child Codes (2)

N30.00Acute cystitis without hematuriaN30.01Acute cystitis with hematuria

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Code Information

CodeN30.0
BillableNo — Header code
ParentN30
CategoryDiseases of the genitourinary system (N00-N99)
Excludes13 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)