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ICD-10-CM 2027

ICD-10 code for Pus in urine

N39.0

Urinary tract infection, site not specified

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Urine › pus in”. Page updated September 29, 2026.

About coding Pus in urine

The ICD-10-CM code for Pus in urine is N39.0 (Urinary tract infection, site not specified).

Within N39 (other disorders of urinary system), N39.0 is specifically for urinary tract infection, site not specified. Related codes cover stress incontinence (female) (male) (N39.3), other specified urinary incontinence (N39.4), other specified disorders of urinary system (N39.8) and disorder of urinary system, unspecified (N39.9).

Don't report N39.0 together with the conditions in its Excludes1 note: candidiasis of urinary tract (B37.4-), neonatal urinary tract infection (P39.3), pyuria (R82.81), cystitis (N30.-) and 2 more.

Use an additional code (B95-B97), to identify infectious agent.

Don't confuse with (Excludes1 for N39.0)

  • candidiasis of urinary tract (B37.4-)
  • neonatal urinary tract infection (P39.3)
  • pyuria (R82.81)
  • urinary tract infection of specified site, such as:
  • cystitis (N30.-)
  • pyonephrosis (N13.6)
  • urethritis (N34.-)

Common questions about Pus in urine ICD-10 codes

What is the ICD-10 code for Pus in urine?

N39.0 — Urinary tract infection, site not specified.

Is N39.0 billable?

Yes. N39.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can N39.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict N39.0 as a principal diagnosis.

Is N39.0 a CC or MCC?

N39.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.