B78 Strongyloidiasis

Name of the Condition

• Strongyloidiasis

Summary

Strongyloidiasis is a parasitic infection caused by the nematode Strongyloides stercoralis. The condition can involve multiple body systems, with gastrointestinal and cutaneous manifestations being common, though the specific site or extent of infection may vary.

Causes

The condition is caused by infection with the Strongyloides stercoralis parasite. Larvae typically enter the body through skin contact with contaminated soil, leading to infection that can persist and spread internally.

Risk Factors

• Residing in or traveling to tropical and subtropical regions.
• Walking barefoot on contaminated soil.
• Immunocompromised state, such as due to HIV/AIDS or long-term corticosteroid use.

Symptoms

• Abdominal pain and bloating
• Diarrhea or constipation
• Skin rash, often at the site of larval penetration
• Cough and wheezing (if larval migration occurs to the lungs)

Diagnosis

Diagnosis involves identifying the parasite through stool samples, skin scrapings, or tissue samples. Microscopic examination may detect larvae, while serological tests can confirm exposure to Strongyloides stercoralis. Molecular tests (PCR) may be used for more accurate detection in difficult cases.

Treatment Options

• Ivermectin is the primary treatment, effectively eradicating the parasite.
• Albendazole can be used as an alternative in some cases.
• Treatments help relieve symptoms and eliminate the parasite from the body.

Prognosis and Follow-Up

With appropriate treatment, the prognosis is generally good. Re-infection can occur; regular follow-up may be necessary for individuals at high risk or with persistent symptoms.

Complications

• Hyperinfection syndrome, particularly in immunocompromised individuals.
• Disseminated infection affecting multiple organs.
• Severe gastrointestinal or respiratory symptoms in untreated cases.

Lifestyle & Prevention

• Avoid walking barefoot in endemic areas.
• Practice good hygiene, including handwashing after soil contact.
• Wear protective footwear in regions with known contamination.

When to Seek Professional Help

Seek medical attention if you experience persistent gastrointestinal symptoms, unexplained skin rashes, or respiratory issues after potential exposure to contaminated soil.

Tips for Medical Coders

Use code B78 for strongyloidiasis when the condition is documented but not specified to a particular site (e.g., intestinal or cutaneous). Ensure documentation supports the diagnosis and consider site-specific codes if applicable. Verify that the code aligns with the clinical presentation and any associated manifestations.