Paratyphoid fever A

This code identifies an acute systemic infection caused by Salmonella Paratyphi A. It presents similarly to typhoid fever but is generally milder, characterized by fever, headache, malaise, and sometimes a rose spot rash or gastrointestinal symptoms. The infection is typically acquired through contaminated food or water.

Assign this code when documentation confirms a diagnosis of paratyphoid fever specifically due to Salmonella Paratyphi A. This diagnosis is usually established through positive blood, stool, or urine cultures identifying the specific serotype. Clinical suspicion alone is insufficient without laboratory confirmation.

• Differentiate carefully from typhoid fever (A01.0) and other paratyphoid fevers (A01.2, A01.3).
• Ensure the documentation specifies "Paratyphoid A" or "Salmonella Paratyphi A" for accurate code assignment.
• Do not use this code for unspecified paratyphoid fever; use the appropriate unspecified code if the specific serotype is not documented.