Methicillin susceptible Staphylococcus aureus infection, unspecified site
ICD-10 A49.01 is a billable code used to indicate a diagnosis of methicillin susceptible staphylococcus aureus infection, unspecified site.
Methicillin susceptible Staphylococcus aureus (MSSA) is a type of bacteria that can cause a range of infections, from mild skin infections to more severe conditions such as pneumonia, endocarditis, and sepsis. This code is used when the infection is not specified to a particular site, which can complicate diagnosis and treatment. MSSA is particularly concerning in immunocompromised patients, such as those undergoing chemotherapy, organ transplant recipients, or individuals with HIV/AIDS, as their weakened immune systems make them more susceptible to infections. The clinical presentation can vary widely, and diagnostic challenges arise due to the need for specific cultures and sensitivity testing to confirm the presence of MSSA. In these patients, the infection may present atypically, leading to delays in diagnosis and treatment. Furthermore, the lack of specificity in the site of infection can complicate the coding process, as coders must rely on the documentation provided by healthcare providers to accurately capture the nature of the infection and its implications for treatment.
Detailed clinical notes on the patient's history, physical examination findings, and laboratory results.
Patients presenting with fever, skin lesions, or respiratory symptoms without a clear source.
Ensure that the documentation clearly states the site of infection when possible, and note any immunocompromised status.
Comprehensive records of chemotherapy regimens and any associated complications.
Cancer patients experiencing infections during or after treatment.
Highlight the patient's immunocompromised state and any relevant lab results to support coding.
Used when obtaining cultures to confirm MSSA infection.
Document the source of the culture and the results.
Infectious disease specialists should ensure that culture results are clearly linked to the diagnosis.
Coding MSSA infections accurately is crucial for understanding the epidemiology of these infections, guiding treatment decisions, and ensuring appropriate resource allocation in healthcare settings.
