Rat-bite fever, unspecified
ICD-10 A25.9 is a billable code used to indicate a diagnosis of rat-bite fever, unspecified.
Rat-bite fever is a zoonotic infectious disease caused by the bacteria Streptobacillus moniliformis or Spirillum minus, typically transmitted to humans through bites or scratches from infected rats or contact with their urine or feces. The disease is characterized by fever, chills, headache, and muscle pain, often accompanied by a rash and joint pain. The incubation period ranges from 3 to 10 days following exposure. In severe cases, complications such as endocarditis or meningitis may occur. Diagnosis is primarily clinical, supported by serological tests or culture of the bacteria. Treatment involves antibiotics, with penicillin being the drug of choice. Public health considerations include monitoring rodent populations, educating communities about prevention, and ensuring proper sanitation to reduce the risk of transmission. Awareness of rat-bite fever is crucial in areas with high rodent populations, particularly in urban settings where human-rodent interactions are common.
Detailed patient history including exposure to rodents, symptom onset, and laboratory results.
Patients presenting with fever and a history of rodent exposure.
Ensure that the causative organism is documented if known, as this may affect treatment and coding.
Comprehensive patient history and physical examination findings.
Patients with flu-like symptoms and potential exposure to rats.
Document any preventive measures taken by the patient to avoid rodent exposure.
When a culture is performed to confirm the diagnosis of rat-bite fever.
Document the source of the culture and the clinical indication.
Infectious disease specialists may require additional laboratory tests.
Common symptoms include fever, chills, headache, muscle pain, rash, and joint pain. Symptoms typically appear 3 to 10 days after exposure.
Diagnosis is primarily clinical, supported by serological tests or culture of the bacteria. A history of exposure to infected rats is crucial.
Treatment usually involves antibiotics, with penicillin being the first-line therapy. Early treatment is important to prevent complications.
