Screening examination for rickettsial diseases

This code signifies a screening encounter specifically aimed at detecting the presence of rickettsial diseases, such as Rocky Mountain spotted fever or typhus. It indicates that the patient is asymptomatic for rickettsial infection but is undergoing testing due to potential exposure or risk factors.

This code is appropriate for encounters where a patient is screened for rickettsial diseases without presenting any signs or symptoms of infection. This might include individuals who have traveled to endemic areas, have had recent tick bites, or are part of a public health surveillance program.

• Always sequence this code as the primary diagnosis when the sole purpose of the encounter is screening.
• Do not use this code if the patient presents with symptoms suggestive of a rickettsial infection; instead, code the signs/symptoms or the confirmed diagnosis.
• Consider adding a Z-code for exposure (e.g., Z20.828 for exposure to other infectious diseases) if relevant to the screening reason.