Primary genital syphilis
ICD-10 A66.0 is a billable code used to indicate a diagnosis of primary genital syphilis.
Primary genital syphilis is the initial stage of syphilis infection, characterized by the appearance of a single sore, known as a chancre, at the site of infection. This sore is typically painless and can occur on the genitals, anus, or mouth. The chancre usually appears about three weeks after exposure to the Treponema pallidum bacterium, which is the causative agent of syphilis. If left untreated, primary syphilis can progress to secondary syphilis, which involves systemic manifestations such as rashes and flu-like symptoms. The disease is primarily transmitted through sexual contact, and its prevalence varies geographically, with higher rates often found in areas with limited access to healthcare and education about sexually transmitted infections (STIs). In endemic regions, such as parts of sub-Saharan Africa and some urban areas in the United States, the incidence of syphilis remains a public health concern, necessitating ongoing surveillance and intervention efforts.
Detailed patient history, physical examination findings, and laboratory test results.
Diagnosis and management of syphilis in patients presenting with genital ulcers.
Consideration of co-infections and comprehensive STI screening.
Clinical notes on genital examination and any relevant imaging or lab tests.
Evaluation of patients with genital lesions and differential diagnosis of STIs.
Need for clear documentation to differentiate between syphilis and other urogenital conditions.
Used when testing for syphilis in patients presenting with genital lesions.
Document the reason for testing and the patient's clinical presentation.
Infectious disease specialists should ensure comprehensive STI screening.
The primary symptom is a painless sore (chancre) at the site of infection, which may be accompanied by swollen lymph nodes.
