Z20.7
Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
Clinical Classification Guidelines
Medical Intelligence & Overview
ICD-10 Code Z20.7 pertains to situations where an individual has come into contact with or is suspected of being exposed to pediculosis (lice infestation), acariasis (mites or tick infestations), and other similar infestations. This code is used primarily in healthcare documentation to indicate exposure risk, diagnosis, or suspicion of these parasitic conditions. It does not necessarily mean that an infestation has occurred but highlights potential exposure or contact that may require monitoring or preventive actions.
Causes & Symptoms
Clinical Causes: Close physical contact with individuals already infested with lice, mites, or other parasites Sharing personal items such as clothing, bedding, or hats with infested persons Touching contaminated furniture, upholstery, or infested environments Exposure during travel or in crowded communal settings, such as schools or dormitories Contact with outdoor environments or animals hosting ectoparasites
Key Symptoms: Itching or persistent scratching around the head, neck, or body Rashes or red bumps, particularly in areas where mites or ticks may bite Visible lice or mites on the skin or hair Presence of eggs (nits) attached to hair strands Swollen or irritated skin from scratching or bites In some cases, secondary skin infections from scratching
Diagnostic & Treatment
Diagnosis Path: Diagnosis typically involves a healthcare professional examining the affected area for signs of parasites, eggs, or bites. Visual inspection of hair and skin is often sufficient for lice or mite identification. In some cases, microscopic examination or skin scrapings may be performed to confirm the presence of specific parasites. A detailed patient history regarding recent contact with infested individuals or environments can support diagnosis and help identify potential sources of exposure.
Treatment Protocols: While this description focuses on exposure, management may include steps to prevent or treat confirmed infestations. Common approaches include: - Using medicated topical treatments such as lice shampoos or creams - Cleaning and disinfecting personal items, bedding, and clothing - Vacuuming and cleaning living environments thoroughly - Avoiding direct contact with infested individuals until treatment is complete - Monitoring for recurrent symptoms or reinfestation It is essential to consult healthcare professionals for tailored advice and appropriate management strategies in case of confirmed infestation or ongoing exposure.
Clinical Advice & FAQs
Billing Guidance
Is Z20.7 a billable ICD-10 code?
Yes, Z20.7 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report Z20.7?
Clinical documentation must specify the nature of Contact with and (suspected) exposure to pediculosis, acariasis and other infestations and any associated comorbidities for accurate reporting.
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