ICD-10 Coding for Ureaplasma parvum Detection in Urine

Clinical Context Determines Coding

The European Association of Urology notes that the pathogenic role of Ureaplasma species is debated, with recent data suggesting U. urealyticum (but not U. parvum) is an etiological agent in non-gonococcal urethritis, and recommends using N34.1 (Nonspecific urethritis) for symptomatic urethritis with documented U. parvum 1
For symptomatic presentations, the European Association of Urology recommends using N39.0 (Urinary tract infection, site not specified) if presenting with general UTI symptoms 2
The European Association of Urology strongly recommends against treating asymptomatic bacteriuria in general populations, and if antibiotics were prescribed despite asymptomatic status, this represents questionable clinical practice 2, 3
For asymptomatic patients, the European Association of Urology recommends using R82.79 (Other abnormal findings on microbiological examination of urine) for the positive test result without clinical infection 3

The European Association of Urology recommends only treating U. urealyticum when there are symptoms of urethritis or documented urethritis (≥5 PMNs/HPF on urethral smear), and U. parvum specifically has questionable pathogenicity compared to U. urealyticum 1, 2

To justify an infection code, documentation should include presence of urethral discharge, dysuria, or urethral pruritus, and objective findings of urethritis (≥5 PMNs per high-power field on urethral smear), as recommended by the European Association of Urology 1
The European Association of Urology also recommends exclusion of other traditional STI agents and quantitative testing showing high bacterial load if available, to justify an infection code 1