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N13.5

N13.5: Crossing vessel and stricture of ureter without hydronephrosis

Billable / specific codeICD-10-CM

N13.5 is a billable, specific ICD-10-CM code for crossing vessel and stricture of ureter without hydronephrosis. It is valid for submission on a claim.

Check N13.5 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Kinking and stricture of ureter without hydronephrosis

Excludes2 inherited from the categories above N13.5

Not part of this code, but both may be coded when both are present.

Written on N13: Obstructive and reflux uropathy

  • calculus of kidney and ureter without hydronephrosis (N20.-)
  • congenital obstructive defects of renal pelvis and ureter (Q62.0-Q62.3)
  • hydronephrosis with ureteropelvic junction obstruction (Q62.11)
  • obstructive pyelonephritis (N11.1)

Other codes that can never be billed with N13.5

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • M72.8Other fibroblastic disorders
  • N11.1Chronic obstructive pyelonephritis
  • N28.8Other specified disorders of kidney and ureter

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

N13.5 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56421Billing and Coding: CT of the Abdomen and Pelvis

Alphabetic index entries that lead here

  • Ormond's disease(with ureteral obstruction)
  • Angulation›ureter
  • Compression›ureter
  • Constriction›ureter
  • Contraction, contracture, contracted›ureterovesical orifice(postinfectional)
  • Disease, diseased›Ormond's
  • Fasciitis›perirenal(with ureteral obstruction)
  • Intussusception›ureter(with obstruction)
  • Kink, kinking›ureter(pelvic junction)
  • Narrowing›ureter
  • Obliteration›ureter
  • Obstruction, obstructed, obstructive›pelviureteral junction

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under N13

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.