ICD-10-CM > N00-N99 > N30-N39 > N37 N37 Urethral disorders in diseases classified elsewhere Billable/Specific Copy Code Copy Description Code First underlying disease Type 1 Excludes urethritis (in):candidal infection (B37.41)chlamydial (A56.01)gonorrhea (A54.01)syphilis (A52.76)trichomonal infection (A59.03)tuberculosis (A18.13)