B83.2
Angiostrongyliasis due to Parastrongylus cantonensis
Clinical Classification Guidelines
Inclusion Terms
- Eosinophilic meningoencephalitis due to Parastrongylus cantonensis
Excludes Type 2
- intestinal angiostrongyliasis (B81.3)
Medical Intelligence & Overview
Angiostrongyliasis, coded as B83.2 in the ICD-10 system, is a parasitic infection caused by the rat lungworm, Parastrongylus cantonensis. This condition often results in eosinophilic meningoencephalitis, an inflammation of the brain and its surrounding membranes characterized by an increased number of eosinophils, a type of white blood cell. People usually acquire this infection through ingestion of contaminated food or water, leading to neurological symptoms that may require prompt medical attention.
Causes & Symptoms
Clinical Causes: Consumption of raw or undercooked snails, slugs, or other intermediate hosts contaminated with Parastrongylus cantonensis larvae Eating unwashed or contaminated vegetables and produce, especially those grown in contaminated soil Ingestion of contaminated freshwater or seafood contaminated with parasite larvae Accidental ingestion of infected paratenic hosts such as freshwater prawns, crabs, or frogs
Key Symptoms: Headache that can be severe and persistent Neck stiffness and pain Nausea and vomiting Neurological symptoms such as tingling, numbness, or weakness in limbs Altered mental status or confusion in severe cases Fever and malaise Sensitivity to light (photophobia)
Diagnostic & Treatment
Diagnosis Path: Diagnosis of angiostrongyliasis involves a combination of clinical evaluation and laboratory tests. Healthcare providers may perform:
Treatment Protocols: Treatment primarily focuses on managing symptoms and controlling inflammation. While there are no specific antiviral or antiparasitic drugs approved solely for angiostrongyliasis, healthcare providers may recommend:
Clinical Advice & FAQs
Billing Guidance
Is B83.2 a billable ICD-10 code?
Yes, B83.2 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report B83.2?
Clinical documentation must specify the nature of Angiostrongyliasis due to Parastrongylus cantonensis and any associated comorbidities for accurate reporting.
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