Rickettsial Disease Panel

Test Code
37478


CPT Codes
86638 (x4), 86757 (x4)

Includes
Rickettsia (RMSF) Antibodies (IgG, IgM) with Reflex to Titers
Rickettsia (Typhus Fever) Antibodies (IgG, IgM) with Reflex to Titers
Q Fever (Coxiella burnetii) Antibodies (IgG, IgM), with Reflex to Titers

If RMSF IgG is Detected, then RMSF IgG Titer will be performed at an additional charge (CPT code(s): 86757).
If RMSF IgM is Detected, then RMSF IgM Titer will be performed at an additional charge (CPT code(s): 86757).

If R. typhi IgG is Detected, then R. typhi IgG Titer will be performed at an additional charge (CPT code(s): 86757).
If R. typhi IgM is Detected, then R. typhi IgM Titer will be performed at an additional charge (CPT code(s): 86757).

If Q Fever IgG Phase I is Positive, then Q Fever IgG Phase I Titer will be performed at an additional charge (CPT code(s): 86638).
If Q Fever IgG Phase II is Positive, then Q Fever IgG Phase II Titer will be performed at an additional charge (CPT code(s): 86638).
If Q Fever IgM Phase I is Positive, then Q Fever IgM Phase I Titer will be performed at an additional charge (CPT code(s): 86638).
If Q Fever IgM Phase II is Positive, then Q Fever IgM Phase II Titer will be performed at an additional charge (CPT code(s): 86638).


Preferred Specimen
2 mL serum


Minimum Volume
0.5 mL


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic


Methodology
See individual tests

Setup Schedule
Set up: Tues-Sat; Report available: 1-4 days


Limitations
Even after infection has been treated, positive results may persist. False-positive reactions may occur during pregnancy.


Reference Range
See individual tests


Clinical Significance
Rickettsiae are gram negative coccobacilli and short bacilli for which humans are incidental hosts except for human louse-borne typhus. Infections include Q Fever, Rocky Mountain Spotted Fever, and many types of typhus.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.