B78.9 Strongyloidiasis, unspecified

Name of the Condition

• Strongyloidiasis, unspecified

Summary

Strongyloidiasis, unspecified is a parasitic infection caused by the nematode Strongyloides stercoralis. The condition may involve multiple body systems, with gastrointestinal and cutaneous manifestations being common, though the specific site or extent of infection is not detailed in this code.

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

• Disseminated strongyloidiasis, particularly in immunocompromised individuals.
• Severe gastrointestinal or pulmonary involvement.
• Chronic infection leading to malabsorption or weight loss.

Lifestyle & Prevention

• Avoid walking barefoot in endemic areas.
• Wear protective footwear when soil contact is unavoidable.
• Practice good hygiene, including handwashing after outdoor activities.
• Seek prompt treatment if exposure is suspected.

When to Seek Professional Help

Consult a healthcare provider if you experience persistent gastrointestinal symptoms, unexplained skin rashes, or respiratory issues after potential exposure to contaminated soil, especially if you are immunocompromised.

Tips for Medical Coders

Use this code when the specific site or extent of strongyloidiasis is not documented. Ensure documentation supports the diagnosis of Strongyloides stercoralis infection without specifying intestinal, cutaneous, or other localized involvement. Verify that the code aligns with the clinical findings and provider notes to reflect the unspecified nature of the condition.