DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

N39.0 diagnosis code · Billable code · FY2027

N39.0 Urinary tract infection, site not specified

  • Billable
  • CC
  • POA reported

N39.0 ICD-10 code: a billable diagnosis code in FY2027, one of 14 billable codes in category N39.

ICD-10 code by name

What is the ICD-10 code for UTI (urinary tract infection)?
UTI ICD-10 code: N39.0 Urinary tract infection, site not specified. Alphabetic Index: Infection, infected, infective (opportunistic)urinary (tract) → N39.0. UTI: urinary tract infection, per MedlinePlus; the NCHS files do not use UTI. Search ICD-10 for UTI
What is the ICD-10 code for urinary tract infection?
Urinary tract infection ICD-10 code: N39.0 Urinary tract infection, site not specified. Alphabetic Index: Infection, infected, infective (opportunistic)urinary (tract) → N39.0. Search ICD-10 for urinary tract infection

Where it sits

  1. Chapter 14 Diseases of the genitourinary system (N00-N99)
  2. N30-N39 Other diseases of the urinary system (N30-N39)
  3. N39 Other disorders of urinary system
  4. N39.0 Urinary tract infection, site not specified
CC / MCC
CC
MS-DRG
689-690, 791, 793
HCC V28
–
POA
Reported
Code Editor
–
Index entries
3

Instructions

At N39.0

Excludes1

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

Use additional code

  • code (B95-B97), to identify infectious agent. B95 B97

Notes that also apply

Excludes2 from N39

  • hematuria NOS (R31.-) R31
  • recurrent or persistent hematuria (N02.-) N02
  • recurrent or persistent hematuria with specified morphological lesion (N02.-) N02
  • proteinuria NOS (R80.-) R80

Block N30-N39 instructions (Excludes2 3): printed on the block page.

Chapter 14 instructions (Excludes2 8): printed on the chapter 14 page.

Index entries

  • Infection, infected, infective (opportunistic)urinary (tract) → N39.0
  • Urinepus in → N39.0
  • Pusinurine → N39.0

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for N39.0
CC / MCCCC
PDX exclusion list1344 (75 codes)
Appendix BMDC 11 Diseases and Disorders of the Kidney and Urinary Tract, MS-DRG 689-690 (Kidney and Urinary Tract Infections with MCC…); MDC 15 Newborns and Other Neonates with Conditions Originating in Perinatal Period, MS-DRG 791 (Prematurity with Major Problems…); MDC 15 Newborns and Other Neonates with Conditions Originating in Perinatal Period, MS-DRG 793 (Full Term Neonate with Major Problems…)
Code Editor–
POAReported
HCC V28–

CC as a secondary diagnosis, not when the principal diagnosis is on its PDX exclusion list.

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy