A18.39
Retroperitoneal tuberculosis
Clinical Classification Guidelines
Inclusion Terms
- Tuberculosis of mesenteric glands
- Tuberculosis of retroperitoneal (lymph glands)
Medical Intelligence & Overview
Retroperitoneal tuberculosis is a rare form of tuberculosis that affects the lymph nodes located in the retroperitoneal space, which is situated behind the abdominal cavity. It mainly involves the lymph glands, such as the mesenteric and retroperitoneal lymph nodes, leading to swelling and other complications. This condition is caused by the spread of Mycobacterium tuberculosis and often presents with non-specific symptoms, making diagnosis challenging without medical testing.
Causes & Symptoms
Clinical Causes: Infection with Mycobacterium tuberculosis bacteria Spread from a primary tuberculosis site, such as the lungs Hematogenous dissemination, where bacteria spread through the bloodstream Lymphatic spread from adjacent infected tissues Immunosuppression, which increases susceptibility to infection
Key Symptoms: Persistent abdominal pain or discomfort Unexplained weight loss Fever and night sweats Enlargement of abdominal lymph nodes General fatigue or weakness Possible palpable abdominal mass
Diagnostic & Treatment
Diagnosis Path: Diagnosis relies on a combination of medical history, physical examinations, and various investigational procedures. Imaging techniques such as abdominal ultrasound, computed tomography (CT) scans, or magnetic resonance imaging (MRI) can reveal enlarged lymph nodes. Definitive diagnosis often requires tissue biopsy or aspiration to identify Mycobacterium tuberculosis through microscopy, culture, or molecular assays like PCR. Blood tests and tuberculosis screening methods may support the diagnosis but are not conclusive on their own.
Treatment Protocols: Treatment generally involves a prolonged course of multi-drug anti-tuberculous therapy, often lasting six months or longer. The standard regimen includes medications such as isoniazid, rifampicin, ethambutol, and pyrazinamide. Supportive care may be necessary to manage symptoms and complications. Surgical intervention is typically reserved for cases with extensive tissue destruction or complications requiring drainage or removal. Monitoring response to therapy is essential to ensure complete eradication of the infection.
Clinical Advice & FAQs
Billing Guidance
Is A18.39 a billable ICD-10 code?
Yes, A18.39 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report A18.39?
Clinical documentation must specify the nature of Retroperitoneal tuberculosis and any associated comorbidities for accurate reporting.
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