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N13.4

Billable

Hydroureter

N13.4 is the ICD-10-CM code for Hydroureter. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
N00-N99
Parent
N13
Edition
FY2026

N00-N99 Diseases of the genitourinary system

What this means — in plain language

MedlinePlus · NIH

Your kidneys make urine by filtering wastes and extra water from your blood. The urine travels from the kidneys to the bladder in two thin tubes called ureters. The ureters are about 8 to 10 inches long. Muscles in the ureter walls tighten and relax to force urine down and away from the kidneys. Small amounts of urine flow from the ureters into the bladder about every 10 to 15 seconds. Sometimes the ureters can…

Read more about Ureteral Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •congenital hydroureter (Q62.3-)
  • •hydroureter with infection (N13.6)
  • •vesicoureteral-reflux with hydroureter (N13.73-)

Frequently asked questions

What is ICD-10 code N13.4?
N13.4 is the ICD-10-CM code for "Hydroureter". It falls under N00-N99 Diseases of the genitourinary system.
Is N13.4 a billable code?
Yes — N13.4 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from N13.4?
Excludes1 (not coded here): congenital hydroureter (Q62.3-); hydroureter with infection (N13.6); vesicoureteral-reflux with hydroureter (N13.73-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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