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ICD-10 Guide
ICD-10 CodesN13.9

N13.9

Billable

Obstructive and reflux uropathy, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N13.9 is a billable code used to indicate a diagnosis of obstructive and reflux uropathy, unspecified.

Key Diagnostic Point:

Obstructive and reflux uropathy refers to conditions that impede the normal flow of urine, leading to potential kidney damage. This can occur due to anatomical abnormalities, such as ureteral strictures or congenital malformations, or functional issues like vesicoureteral reflux (VUR). The condition can result in complications such as pyelonephritis, which is an infection of the kidney, and hydronephrosis, characterized by the swelling of a kidney due to a build-up of urine. Interstitial nephritis may also develop as a result of prolonged obstruction or infection. Drug-induced nephropathy can occur when nephrotoxic medications are used in the presence of obstructive uropathy. Patients may present with urinary tract infections (UTIs) due to stagnant urine, which can further complicate their condition. Management often involves antibiotic therapy to treat infections, alongside addressing the underlying obstruction through surgical or non-surgical interventions. Accurate coding of N13.9 is crucial for proper treatment planning and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes (anatomical vs. functional)
  • Potential for multiple co-existing conditions (e.g., infections, nephropathies)
  • Need for precise documentation of symptoms and diagnostic tests
  • Variability in treatment approaches based on etiology

Audit Risk Factors

  • Inadequate documentation of the underlying cause of obstruction
  • Failure to document associated infections or complications
  • Misclassification of the type of uropathy (obstructive vs. reflux)
  • Lack of clarity in treatment plans and outcomes

Specialty Focus

Medical Specialties

Urology

Documentation Requirements

Detailed history of urinary symptoms, imaging studies, and treatment plans.

Common Clinical Scenarios

Patients presenting with recurrent UTIs, hydronephrosis, or renal impairment.

Billing Considerations

Ensure documentation reflects the specific type of obstruction and any surgical interventions performed.

Nephrology

Documentation Requirements

Comprehensive renal function tests, history of drug use, and assessment of kidney damage.

Common Clinical Scenarios

Patients with chronic kidney disease secondary to obstructive uropathy.

Billing Considerations

Document any nephrotoxic medications and their potential impact on kidney function.

Coding Guidelines

Inclusion Criteria

Use N13.9 When
  • Follow official ICD
  • CM guidelines for coding and reporting, ensuring to document the specific type of obstruction and any associated conditions
  • Include relevant diagnostic tests and treatment plans in the medical record

Exclusion Criteria

Do NOT use N13.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

52332CPT Code

Cystourethroscopy with ureteral catheterization

Clinical Scenario

Used in cases of obstructive uropathy to assess and potentially treat the obstruction.

Documentation Requirements

Document indications for the procedure, findings, and any interventions performed.

Specialty Considerations

Urology specialists should ensure that the procedure is linked to the diagnosis of obstructive uropathy.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of uropathy conditions, improving the ability to capture the complexity of cases and ensuring appropriate reimbursement for services rendered.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of uropathy conditions, improving the ability to capture the complexity of cases and ensuring appropriate reimbursement for services rendered.

Reimbursement & Billing Impact

reimbursement for services rendered.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What are the common causes of obstructive uropathy?

Common causes include ureteral stones, tumors, strictures, and congenital anomalies that impede urine flow.

How is obstructive uropathy diagnosed?

Diagnosis typically involves imaging studies such as ultrasound or CT scans, urinalysis, and renal function tests.

What are the potential complications of untreated obstructive uropathy?

Complications can include pyelonephritis, hydronephrosis, chronic kidney disease, and acute renal failure.