O'nyong-nyong fever
ICD-10 A93 is a billable code used to indicate a diagnosis of o'nyong-nyong fever.
O'nyong-nyong fever is a viral disease caused by the O'nyong-nyong virus, which is transmitted primarily by mosquitoes, particularly Aedes species. The disease is characterized by sudden onset of fever, joint pain, and rash, often resembling chikungunya fever. Symptoms typically appear 3 to 12 days after being bitten by an infected mosquito. Patients may experience high fever, severe arthralgia, myalgia, and a maculopapular rash. The fever usually lasts for about a week, but joint pain can persist for months or even years. O'nyong-nyong fever is endemic in certain regions of Africa, and outbreaks have been reported in various countries, particularly in areas with high mosquito populations. Travel history is crucial for diagnosis, as it helps to identify potential exposure to the virus. Laboratory confirmation can be achieved through serological tests or PCR, but clinical diagnosis is often sufficient in endemic areas. The disease is generally self-limiting, and supportive care is the mainstay of treatment.
Detailed travel history, symptom onset, and laboratory results.
Patients presenting with fever and joint pain after travel to endemic regions.
Consideration of co-infections with other arboviruses.
Thorough history and physical examination, including travel and exposure history.
Patients with febrile illness returning from endemic areas.
Awareness of local outbreaks and differential diagnoses.
Used to confirm O'nyong-nyong virus infection.
Document the reason for testing and patient symptoms.
Infectious disease specialists should ensure comprehensive testing.
The primary symptoms include fever, severe joint pain, rash, and myalgia, typically appearing 3 to 12 days after mosquito exposure.
