Hydroureteronephrosis ICD-10-CM Codes

Hydroureteronephrosis ICD-10-CM Codes

Learn ICD-10-CM codes for hydroureteronephrosis, its clinical insights, billing information, and related conditions.

By Audrey Liz Perez on Aug 8, 2025.

Fact Checked by Ericka Pingol.

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What ICD-10 codes are used for Hydroureteronephrosis?

Hydroureteronephrosis is a medical condition characterized by the dilation of the ureter and renal pelvis due to blockage or obstruction. Proper diagnosis and coding of this condition are essential for accurate healthcare management.

Here are some commonly used ICD-10 codes for Hydroureteronephrosis, along with their clinical descriptions:

N13.30 - Hydroureteronephrosis, unspecified

This code is used when the exact cause of the hydroureteronephrosis is not specified. It indicates the presence of dilated ureter and renal pelvis without a specific underlying cause.

N13.31 - Hydroureteronephrosis with ureteral stricture, not elsewhere classified

This code is assigned when hydroureteronephrosis is caused by a stricture or narrowing of the ureter, resulting in the dilation of the renal pelvis and ureter.

N13.32 - Hydroureteronephrosis with renal and ureteral calculous obstruction, unspecified

This code indicates the presence of hydroureteronephrosis caused by an obstruction in the renal pelvis and ureter due to calculi or stones.

N13.39 - Other secondary hydronephrosis and hydroureter

This code is assigned when hydroureteronephrosis is caused by factors other than those mentioned above, such as tumors, trauma, or congenital abnormalities.

N13.70 - Unspecified obstructive and reflux uropathy with hydroureter

This code is used when an unspecified obstructive and reflux uropathy leads to hydroureteronephrosis without further specifying the underlying cause.

N13.71 - Unilateral obstructive uropathy with hydroureter

This code is used when an obstruction in a single kidney causes hydroureteronephrosis.

N13.72 - Bilateral obstructive uropathy with hydroureter

This code is used when both kidneys are affected by obstructive uropathy leading to hydroureteronephrosis.

N13.79 - Other obstructive uropathy with hydroureter

This code is assigned when hydroureteronephrosis is caused by obstructive uropathy due to factors not specified by other codes, such as neoplasms or external compression.

N13.9 - Obstructive and reflux uropathy, unspecified

This code is used when the exact type or cause of obstructive and reflux uropathy leading to hydroureteronephrosis is not specified.

N28.89 - Other specified disorders of kidney and ureter

This code is assigned when there are other specified disorders of the kidney and ureter, resulting in hydroureteronephrosis, not covered by other specific codes.

Are these codes billable?

Yes, all the above codes are billable and should be selected based on the specific clinical findings and diagnostic results. Accurate documentation of the underlying cause, laterality, and any associated conditions is crucial for proper coding and reimbursement.

Clinical information

Hydroureteronephrosis involves the swelling of the ureter and kidney pelvis due to urine flow obstruction often affecting the genitourinary system. This can result from conditions like renal and ureteral stones, ureteropelvic junction obstruction, and vesicoureteral reflux. Infections can complicate the condition, leading to obstructive pyelonephritis or infection obstructive uropathy, both of which require prompt diagnosis and treatment.

Other causes include:

  • Ureteral stricture
  • Tumors or external compression
  • Congenital obstructive defects

Symptoms of hydroureteronephrosis may include flank pain, hematuria, urinary tract infections, blood in the urine, frequent urination, and decreased urine output.

Diagnosis typically involves a combination of medical history review, physical examination, imaging tests (such as ultrasound, CT scan, or MRI), and urodynamic studies. Management depends on the underlying cause and may include surgical intervention, stenting, or addressing infections.

Timely diagnosis and appropriate management are crucial to prevent complications such as kidney damage, chronic kidney disease, urinary tract infections, sepsis, and renal failure. Multidisciplinary collaboration between urologists, nephrologists, radiologists, and other healthcare professionals is essential for a comprehensive evaluation, treatment planning, and ongoing care of patients with hydroureteronephrosis.

Synonyms include:

  • Ureterohydronephrosis
  • Dilated ureter and renal pelvis
  • Hydronephrosis of the ureter and kidney
  • Ureteropelvic junction obstruction
  • Obstructive uropathy leading to the renal pelvis and ureter dilation

Commonly asked questions

ICD codes provide a standardized way of documenting and coding medical conditions. For Hydroureteronephrosis, ICD codes allow for accurate identification, tracking, and classification of cases, which is crucial for proper diagnosis, treatment planning, reimbursement, and statistical analysis.

Healthcare providers assign appropriate ICD codes to patients' medical records based on the diagnosis and documented information. These codes are then used for various purposes, including billing, insurance claims, research, public health reporting, and healthcare management.

Yes, the ICD-10 coding system provides specific codes for different causes of Hydroureteronephrosis, such as ureteral strictures, calculous obstruction, tumors, obstructive uropathy, and reflux uropathy. These codes allow for precise documentation and classification of the condition's underlying cause.

Related ICDs

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