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ICD-10 Guide
ICD-10 CodesN13.731

N13.731

Billable

Vesicoureteral-reflux with reflux nephropathy with hydroureter, unilateral

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

Code Description

ICD-10 N13.731 is a billable code used to indicate a diagnosis of vesicoureteral-reflux with reflux nephropathy with hydroureter, unilateral.

Key Diagnostic Point:

Vesicoureteral reflux (VUR) is a condition where urine flows backward from the bladder into the ureters and potentially into the kidneys. This backward flow can lead to recurrent urinary tract infections (UTIs) and can cause damage to the kidneys, known as reflux nephropathy. In cases where VUR is accompanied by hydroureter, there is dilation of the ureter due to the increased pressure from the refluxing urine. This condition is often unilateral, affecting one side of the urinary tract. Patients may present with symptoms such as flank pain, fever, and signs of infection. Pyelonephritis, an infection of the kidney, can occur as a complication of VUR, leading to interstitial nephritis, which is inflammation of the kidney interstitium. Chronic VUR can also result in hydronephrosis, where the kidney becomes swollen due to the buildup of urine. Management often includes antibiotic prophylaxis to prevent UTIs and may require surgical intervention in severe cases. Understanding the interplay between these conditions is crucial for effective treatment and coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of multiple related conditions (VUR, reflux nephropathy, hydroureter)
  • Differentiation between unilateral and bilateral conditions
  • Potential for co-morbidities such as pyelonephritis and interstitial nephritis
  • Need for precise documentation of symptoms and diagnostic tests

Audit Risk Factors

  • Inadequate documentation of symptoms and diagnostic findings
  • Failure to specify unilateral vs. bilateral involvement
  • Misclassification of related conditions (e.g., pyelonephritis)
  • Inconsistent coding of recurrent UTIs

Specialty Focus

Medical Specialties

Urology

Documentation Requirements

Detailed history of urinary symptoms, imaging studies (e.g., ultrasound, VCUG), and treatment plans.

Common Clinical Scenarios

Management of recurrent UTIs, surgical intervention for severe VUR, and monitoring of kidney function.

Billing Considerations

Ensure documentation reflects the severity of reflux and any associated complications.

Pediatrics

Documentation Requirements

Growth and development assessments, family history of urinary issues, and detailed symptomatology.

Common Clinical Scenarios

Evaluation of infants and children with recurrent UTIs and VUR.

Billing Considerations

Consider age-specific factors and developmental milestones in documentation.

Coding Guidelines

Inclusion Criteria

Use N13.731 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition's severity and any associated complications
  • Include details on the patient's history of UTIs and any imaging results that support the diagnosis

Exclusion Criteria

Do NOT use N13.731 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

52332CPT Code

Cystourethroscopy with injection of bulking agent

Clinical Scenario

Used in the treatment of VUR to prevent reflux.

Documentation Requirements

Document the indication for the procedure and any pre-operative evaluations.

Specialty Considerations

Urology specialists should ensure detailed operative notes are provided.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like vesicoureteral reflux, enabling better tracking of patient outcomes and resource allocation. The granularity of ICD-10 codes helps in understanding the complexities of conditions and their management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like vesicoureteral reflux, enabling better tracking of patient outcomes and resource allocation. The granularity of ICD-10 codes helps in understanding the complexities of conditions and their management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like vesicoureteral reflux, enabling better tracking of patient outcomes and resource allocation. The granularity of ICD-10 codes helps in understanding the complexities of conditions and their management.

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 is the significance of coding N13.731 accurately?

Accurate coding of N13.731 is crucial for proper reimbursement, tracking of patient outcomes, and ensuring that the complexity of the patient's condition is reflected in their medical record.