N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
Clinical Classification Guidelines
Excludes Type 1
- Hydronephrosis with ureteral stricture with infection (N13.6)
Medical Intelligence & Overview
Hydronephrosis with ureteral stricture, classified under ICD-10 code N13.1, is a condition characterized by swelling of the kidney due to urine buildup caused by a narrowing or blockage in the ureter. The ureter is the tube responsible for carrying urine from the kidney to the bladder. When a stricture—or narrowing—develops, it can impede urine flow, leading to distension of the kidney tissue and potential damage if untreated. This condition can affect one or both kidneys and requires medical attention to prevent further complications.
Causes & Symptoms
Clinical Causes: Infections causing scarring and narrowing of the ureter Kidney stones that obstruct the ureter and lead to secondary stricture formation Previous surgical procedures or injuries to the urinary tract Congenital abnormalities present at birth Tumors or cancers in the urinary tract that compress or invade the ureter Inflammatory conditions such as ureteritis External compression from neighboring organs or masses
Key Symptoms: Flank pain or discomfort, often one-sided Urgency or difficulty when urinating Reduced urine output or intermittent flow Blood in the urine (hematuria) Recurrent urinary tract infections Fever and chills if infection develops Swelling of the abdomen or flank area
Diagnostic & Treatment
Diagnosis Path: Ultrasound imaging to visualize kidney swelling and detect ureteral narrowing Computed tomography (CT) scan providing detailed images of the urinary tract Intravenous pyelogram (IVP) to assess urine flow and identify obstructions Urinalysis to detect signs of infection or blood Blood tests evaluating kidney function, including serum creatinine and blood urea nitrogen (BUN)
Treatment Protocols: Relieving the obstruction, often through procedures like ureteral stenting or balloon dilation Surgical correction to remove or bypass strictures Treating underlying causes such as infections or tumors Lithotripsy or removal of kidney stones causing blockage Monitoring kidney function through follow-up imaging and tests Antibiotics if infections are present
Clinical Advice & FAQs
Billing Guidance
Is N13.1 a billable ICD-10 code?
Yes, N13.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report N13.1?
Clinical documentation must specify the nature of Hydronephrosis with ureteral stricture, not elsewhere classified and any associated comorbidities for accurate reporting.
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