Cat-scratch disease
ICD-10 A28.1 is a billable code used to indicate a diagnosis of cat-scratch disease.
Cat-scratch disease (CSD) is a zoonotic infection caused by the bacterium Bartonella henselae, primarily transmitted to humans through scratches or bites from infected cats, particularly kittens. The disease is characterized by the development of lymphadenopathy, fever, fatigue, and in some cases, more severe complications such as bacillary angiomatosis or endocarditis in immunocompromised individuals. The incubation period typically ranges from 3 to 14 days following exposure, with symptoms often resolving spontaneously within a few weeks to months. Diagnosis is primarily clinical, supported by serological testing for antibodies against Bartonella henselae. Public health considerations include awareness of transmission vectors, particularly in households with cats, and the importance of educating pet owners about proper handling and hygiene practices to minimize risk. CSD is generally self-limiting in healthy individuals, but awareness of potential complications is crucial for timely intervention in at-risk populations.
Detailed patient history including exposure to cats, clinical symptoms, and laboratory test results.
Patients presenting with lymphadenopathy and fever after cat exposure.
Consideration of immunocompromised status and potential complications.
History of cat exposure, symptom onset, and any relevant family history.
Children with unexplained fever and lymphadenopathy, particularly those with pets.
Awareness of the higher incidence in children and the need for parental education.
Used when serological testing is indicated for suspected CSD.
Document the clinical rationale for testing and any relevant patient history.
Infectious disease specialists may require additional details on patient history.
Common symptoms include swollen lymph nodes, fever, fatigue, and in some cases, skin lesions or more severe complications in immunocompromised individuals.
Diagnosis is primarily clinical, supported by serological testing for antibodies against Bartonella henselae, especially in cases with atypical presentations.
