N30.31 Trigonitis with 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)

Applies from N30.3 Trigonitis

Applicable to

• Urethrotrigonitis

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 595.3 Trigonitis (approximate)

Code annotations containing back-references to N30.31

Back-references to N30.3

• Type 1 Excludes: N30.0 Acute cystitis ("trigonitis (N30.3-)")
• Type 2 Excludes: N34 Urethritis and urethral syndrome ("urethrotrigonitis (N30.3-)")

Back-references to N30

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

Diagnosis Index entries for N30.31

• Cystitis (exudative) (hemorrhagic) (septic) (suppurative) › acute › of trigone › with hematuria
• Cystitis (exudative) (hemorrhagic) (septic) (suppurative) › chronic › of trigone › with hematuria
• Cystitis (exudative) (hemorrhagic) (septic) (suppurative) › of trigone › with hematuria
• Trigonitis (bladder) (chronic) (pseudomembranous) › with hematuria

Nearby codes

• N30.2 Other chronic cystitis
• N30.20 Other chronic cystitis without hematuria
• N30.21 Other chronic cystitis with hematuria
• N30.3 Trigonitis
• N30.30 Trigonitis without hematuria
• N30.31 Trigonitis with hematuria (this code)
• N30.4 Irradiation cystitis
• N30.40 Irradiation cystitis without hematuria
• N30.41 Irradiation cystitis with hematuria
• N30.8 Other cystitis
• N30.80 Other cystitis without hematuria