N30.9
⚠ Non-billable (Header)Cystitis, unspecified
Diseases of the genitourinary system (N00-N99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inherited from N30Rules from parent category N30: Cystitis
- • prostatocystitis (N41.3)
📋 Code Instructions
from N30- • code to identify infectious agent (B95-B97)
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CodeN30.9
BillableNo — Header code
ParentN30
CategoryDiseases of the genitourinary system (N00-N99)
Excludes11 rule(s)
Excludes20 note(s)
Child codes2
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)