O'nyong-nyong fever
ICD-10 A93.0 is a billable code used to indicate a diagnosis of o'nyong-nyong fever.
O'nyong-nyong fever is an arthropod-borne viral infection caused by the O'nyong-nyong virus, which is primarily transmitted through the bite of infected mosquitoes, particularly Aedes species. This disease is endemic to certain regions of Africa and is characterized by sudden onset of fever, severe joint pain, and rash. The fever typically lasts for about a week, but the arthralgia can persist for months, leading to significant morbidity. Patients may also experience headache, myalgia, and fatigue. The disease is often confused with other arboviral infections such as chikungunya and dengue fever due to overlapping symptoms. Diagnosis is primarily clinical, supported by serological tests to confirm the presence of the virus. Travel history to endemic areas is crucial for diagnosis, as it helps differentiate O'nyong-nyong fever from other febrile illnesses. While the disease is not typically associated with hemorrhagic manifestations, the potential for misdiagnosis with more severe viral hemorrhagic fevers necessitates careful clinical evaluation.
Detailed travel history, symptom onset, and serological test results.
Patients presenting with fever and joint pain after travel to endemic regions.
Consideration of co-infections with other arboviruses.
Thorough assessment of fever, joint pain, and travel history.
Patients presenting with acute febrile illness after travel.
Rapid assessment to rule out more severe conditions.
Used to confirm O'nyong-nyong fever diagnosis.
Document the reason for testing and symptoms.
Infectious disease specialists may order this test.
The primary symptoms include sudden onset of fever, severe joint pain, rash, headache, and myalgia.
Diagnosis is primarily clinical, supported by serological tests to confirm the presence of the O'nyong-nyong virus.
Fever usually lasts about a week, but joint pain can persist for months.
