A18.11
Tuberculosis of kidney and ureter
Clinical Classification Guidelines
Medical Intelligence & Overview
Tuberculosis of the kidney and ureter, classified under ICD-10 code A18.11, is a specific form of tuberculosis that affects the urinary system. This condition occurs when the bacteria Mycobacterium tuberculosis infects the kidneys and the ureters, the tubes that carry urine from the kidneys to the bladder. Although primarily a lung disease, tuberculosis can spread to other parts of the body, including the urinary tract, via the bloodstream or lymphatic system. Recognizing this disease is important as it can cause long-term damage if left untreated.
Causes & Symptoms
Clinical Causes: Infection with Mycobacterium tuberculosis bacteria Spread from a primary tuberculosis infection elsewhere in the body, particularly the lungs Contagious contact with an infected person, especially through inhalation of airborne bacteria
Key Symptoms: Frequent urination and discomfort during urination Blood in the urine (hematuria) Pain in the lower back or flank Unexplained weight loss Fever and night sweats Fatigue and general malaise Urine that is cloudy or foul-smelling
Diagnostic & Treatment
Diagnosis Path: Diagnosing tuberculosis of the kidney and ureter involves a combination of medical history, physical examination, and testing. Diagnostic procedures include urinalysis to detect abnormal cells or bacteria, urine cultures for Mycobacterium tuberculosis, imaging studies such as ultrasound or CT scans to identify structural abnormalities, and sometimes tissue biopsy. Tuberculin skin tests or blood tests like interferon-gamma release assays may support the diagnosis of tuberculosis infection.
Treatment Protocols: Treatment typically involves a prolonged course of combination antibiotic therapy targeting Mycobacterium tuberculosis. The regimen usually lasts from 6 to 12 months and may include drugs such as isoniazid, rifampin, ethambutol, and pyrazinamide. Management also includes supportive care to address any renal impairment and vigilant monitoring for drug side effects. In some cases, surgical intervention may be needed to remove damaged tissue or drain abscesses. Regular follow-up is essential to ensure complete eradication of the infection and prevent relapse.
Clinical Advice & FAQs
Billing Guidance
Is A18.11 a billable ICD-10 code?
Yes, A18.11 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report A18.11?
Clinical documentation must specify the nature of Tuberculosis of kidney and ureter and any associated comorbidities for accurate reporting.
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