ICD Code N13.2

ICD code N13.2 is a medical classification used to describe a condition where there is swelling of the kidney (hydronephrosis) due to a blockage caused by kidney stones (calculi) in both the kidney and the ureter. This code is utilized by healthcare providers to accurately document and communicate this specific diagnosis for billing, treatment planning, and statistical purposes.

1. Presence of Hydronephrosis: Confirmed swelling of one or both kidneys due to a build-up of urine. This condition is often detected through imaging studies such as an ultrasound, CT scan, or MRI.

2. Renal Calculi (Kidney Stones): Identification of calculi within the renal pelvis or calyces. These stones can be detected through imaging techniques like X-rays, CT scans, or ultrasounds.

3. Ureteral Calculi (Ureter Stones): Detection of stones located within the ureter, which can cause obstruction. This is typically confirmed through imaging studies.

4. Obstructive Uropathy: Evidence of obstruction in the urinary tract, specifically due to the presence of calculi, leading to impaired urine flow from the kidney to the bladder.

5. Symptoms of Urinary Obstruction: Patients may present with symptoms such as flank pain, hematuria (blood in urine), nausea, vomiting, and urinary tract infections. These symptoms are often indicative of an obstructive process.

6. Imaging Confirmation: Use of diagnostic imaging to confirm the presence of hydronephrosis and the location of calculi causing obstruction. Imaging is crucial for accurate diagnosis and treatment planning.

7. Clinical Evaluation: Comprehensive assessment by a healthcare provider to rule out other potential causes of the symptoms and confirm the diagnosis based on clinical findings and patient history.

For the ICD code N13.2, which pertains to hydronephrosis with renal and ureteral calculous obstruction, the relevant CPT codes that may be applicable for treatment include:

1. CPT 50080 - Percutaneous nephrolithotomy or pyelolithotomy, with or without dilation, endoscopy, lithotripsy, stenting, or basket extraction; up to 2 cm.

2. CPT 50081 - Percutaneous nephrolithotomy or pyelolithotomy, with or without dilation, endoscopy, lithotripsy, stenting, or basket extraction; over 2 cm.

3. CPT 50590 - Lithotripsy, extracorporeal shock wave.

4. CPT 52356 - Cystourethroscopy, with ureteroscopy and/or pyeloscopy; with lithotripsy (ureteral catheterization is included).

5. CPT 52352 - Cystourethroscopy, with ureteroscopy and/or pyeloscopy; with removal or manipulation of calculus (ureteral catheterization is included).

6. CPT 52353 - Cystourethroscopy, with ureteroscopy and/or pyeloscopy; with lithotripsy (ureteral catheterization is included).

These CPT codes are typically used for procedures that address the obstruction and removal of calculi in the renal and ureteral areas. It's important for healthcare providers to select the appropriate CPT code based on the specific procedure performed and the clinical scenario.

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