N30.90 Cystitis, unspecified without hematuria

Billable ICD-10-CM code, FY2026.

Applies from N30 Cystitis

Excludes1 (never code together)

• prostatocystitis (N41.3)

Use additional code

• code to identify infectious agent (B95-B97)

MS-DRG index

Defines the logic of DRG(s) 689-690 in MDC 11.

Approximate ICD-9-CM (GEMs)

• 595.9 Cystitis, unspecified (approximate)

Code annotations containing back-references to N30.90

Back-references to N30

• Type 1 Excludes: N39.0 Urinary tract infection, site not specified ("cystitis (N30.-)")

Diagnosis Index entries for N30.90

• Cystitis (exudative) (hemorrhagic) (septic) (suppurative)
• Pericystitis

Nearby codes

• N30.41 Irradiation cystitis with hematuria
• N30.8 Other cystitis
• N30.80 Other cystitis without hematuria
• N30.81 Other cystitis with hematuria
• N30.9 Cystitis, unspecified
• N30.90 Cystitis, unspecified without hematuria (this code)
• N30.91 Cystitis, unspecified with hematuria