A66.7
Other manifestations of yaws
Clinical Classification Guidelines
Inclusion Terms
- Juxta-articular nodules of yaws
- Mucosal yaws
Medical Intelligence & Overview
Yaws is a contagious disease caused by the bacterium Treponema pallidum pertenue. It primarily affects children in tropical regions and is transmitted through skin contact with infected lesions. While the common presentation involves skin lesions, certain cases exhibit atypical or less common signs, categorized under 'Other manifestations of yaws' with ICD-10 code A66.7. These manifestations include mucosal lesions and juxta-articular nodules, which can complicate diagnosis and treatment if not properly recognized.
Causes & Symptoms
Clinical Causes: Direct skin contact with an active yaws sore or lesion Persistent infection with Treponema pallidum pertenue bacteria Environmental factors in tropical and humid climates that facilitate transmission Repeated exposure in endemic communities
Key Symptoms: Juxta-articular nodules: Firm lumps located near joints, often painless, which may persist for months Mucosal yaws: Ulcerative lesions or nodules occurring on mucous membranes such as the mouth, nose, or genital areas Skin changes: Skin breaks or ulcers that may be widespread or localized Lymphadenopathy: Swelling of nearby lymph nodes Possible joint swelling and pain if joints are involved
Diagnostic & Treatment
Diagnosis Path: Noticing characteristic nodules near joints and mucosal lesions during physical assessment Serological tests such as non-treponemal tests (e.g., VDRL, RPR) and treponemal tests (e.g., FTA-ABS, TPPA) to detect treponemal infection Microscopic examination or PCR testing of lesions can sometimes identify the bacteria directly Assessment of patient’s travel history and exposure risk in endemic regions
Treatment Protocols: Single intramuscular injection of penicillin G benzathine for uncomplicated cases Alternative antibiotics such as doxycycline or azithromycin in patients allergic to penicillin Follow-up serological testing to monitor treatment effectiveness Supportive care and wound management for skin and mucosal lesions
Clinical Advice & FAQs
Billing Guidance
Is A66.7 a billable ICD-10 code?
Yes, A66.7 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report A66.7?
Clinical documentation must specify the nature of Other manifestations of yaws and any associated comorbidities for accurate reporting.
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