N37 Urethral disorders in diseases classified elsewhere

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• urethritis (in):
• candidal infection (B37.41)
• chlamydial (A56.01)
• gonorrhea (A54.01)
• syphilis (A52.76)
• trichomonal infection (A59.03)
• tuberculosis (A18.13)

Code first

• underlying disease

Applies from N37 Urethral disorders in diseases classified elsewhere

Excludes1 (never code together)

• urethritis (in):
• candidal infection (B37.41)
• chlamydial (A56.01)
• gonorrhea (A54.01)
• syphilis (A52.76)
• trichomonal infection (A59.03)
• tuberculosis (A18.13)

Code first

• underlying disease

MS-DRG index

Defines the logic of DRG(s) 697 in MDC 11.

Approximate ICD-9-CM (GEMs)

• 598.01 Urethral stricture due to infective diseases classified elsewhere (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Manifestation codes as principal diagnosis: Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and are not allowed as principal diagnosis.

Diagnosis Index entries for N37

• Stricture › urethra (organic) (spasmodic) › associated with schistosomiasis

Nearby codes

• N37 Urethral disorders in diseases classified elsewhere (this code)