N11.1
Chronic obstructive pyelonephritis
Clinical Classification Guidelines
Inclusion Terms
- Pyelonephritis (chronic) associated with anomaly of pelviureteric junction
- Pyelonephritis (chronic) associated with anomaly of pyeloureteric junction
- Pyelonephritis (chronic) associated with crossing of vessel
- Pyelonephritis (chronic) associated with kinking of ureter
- Pyelonephritis (chronic) associated with obstruction of ureter
- Pyelonephritis (chronic) associated with stricture of pelviureteric junction
- Pyelonephritis (chronic) associated with stricture of ureter
Excludes Type 1
- calculous pyelonephritis (N20.9)
- obstructive uropathy (N13.-)
Medical Intelligence & Overview
Chronic obstructive pyelonephritis is a long-term kidney infection characterized by ongoing inflammation that often results from obstructions or anomalies in the urinary tract. It primarily affects the renal pelvis and surrounding tissues, potentially leading to kidney damage if left untreated. This condition is classified under ICD-10 code N11.1 and is associated with various structural abnormalities and obstructions within the urinary system.
Causes & Symptoms
Clinical Causes: Structural abnormalities such as anomalies at the pelviureteric or pyeloureteric junction Crossing of blood vessels that compress the ureter Kinking or twisting of the ureter impeding urine flow Ureteral obstructions caused by strictures or stones Congenital or acquired narrowing (strictures) of the pelviureteric junction or ureter Urinary tract obstructions due to tumors or external pressure
Key Symptoms: Pain or discomfort in the flank or abdominal area Recurrent urinary infections Fever and chills during flare-ups Pain during urination or a frequent urge to urinate Cloudy or foul-smelling urine Blood in the urine (hematuria) Signs of kidney dysfunction, such as swelling in the legs or high blood pressure
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves a combination of clinical evaluation and imaging tests. Healthcare providers typically perform:
Treatment Protocols: Management of chronic obstructive pyelonephritis focuses on eliminating infection, relieving obstructions, and preventing further kidney damage. Common approaches include:
Clinical Advice & FAQs
Billing Guidance
Is N11.1 a billable ICD-10 code?
Yes, N11.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report N11.1?
Clinical documentation must specify the nature of Chronic obstructive pyelonephritis and any associated comorbidities for accurate reporting.
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