ICD-10-CM Billable Code

A18.85

Tuberculosis of spleen

Clinical Classification Guidelines

Medical Intelligence & Overview

Tuberculosis of the spleen is a rare form of extrapulmonary tuberculosis that primarily affects the spleen, an organ involved in the immune system and blood filtration. This condition occurs when the tuberculosis bacteria infect the spleen, leading to inflammation and tissue damage. Though uncommon, it often occurs in individuals with weakened immune systems or those with disseminated tuberculosis affecting multiple organs. Recognizing this condition is important for timely diagnosis and management.

Causes & Symptoms

Clinical Causes: Spread of tuberculosis bacteria from other infected sites in the body, such as the lungs Reactivation of latent tuberculosis infection within the spleen Immune system suppression due to conditions like HIV/AIDS, cancer, or immunosuppressive therapies Direct inoculation, though very rare

Key Symptoms: Persistent fever and night sweats Unexplained weight loss Abdominal pain or discomfort, particularly in the upper left area Enlargement of the spleen (splenomegaly) Fatigue and general malaise Possible signs of other disseminated tuberculosis

Diagnostic & Treatment

Diagnosis Path: Diagnosis typically involves a combination of clinical evaluation and laboratory testing. Imaging studies like ultrasound or CT scans can reveal an enlarged, abnormal spleen. Blood tests may show signs of infection or inflammation. Confirmatory diagnosis often requires:

Treatment Protocols: Treatment mainly involves a lengthy course of anti-tuberculosis medications, typically including combinations of drugs such as isoniazid, rifampin, ethambutol, and pyrazinamide. Treatment duration usually ranges from six months to a year. In some cases, surgical intervention may be necessary if there is abscess formation or significant spleen damage. Regular monitoring for treatment response is essential.

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is A18.85 a billable ICD-10 code?
Yes, A18.85 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report A18.85?
Clinical documentation must specify the nature of Tuberculosis of spleen and any associated comorbidities for accurate reporting.

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