Microsporidia Exam : 3562

Test Code
MSPORA or 3562

CPT Codes

Smear and Concentration (if performed)

1. Stool and duodenal aspirates fixed in 10% formalin or Total-Fix
2. Urine sediments, CSF, BAL/Nasal secretions: preferred in sterile container, acceptable on microscope slide, methanol (or 10% formalin).
3. Conjunctival/corneal scrapings, preferred on microscope slide, methanol (or 10% formalin).

Transport Container
Preferred Specimen: 5 grams or 5 mL stool preserved in 10% formalin or Total-Fix transport vial
Alternative Specimens: Duodenal aspirate, CSF, Conjunctival/corneal scrapings, BAL/Nasal secretions, Urine sediments

Transport Temperature
Preserved or fixed: Room temperature
Raw specimens other than stool: Refrigerated

Specimen Stability
Preserved or fixed:
Room temperature: 30 days; Refrigerated: 30 days; Frozen: Unacceptable
Raw specimens:
Room temperature: Unacceptable; Refrigerated: 7 days; Frozen: Unacceptable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unpreserved stool; Stool in Cary Blair or Polyvinyl Alcohol (PVA); Received frozen


Setup Schedule
Monday - Friday

Report Available
1-3 days (From receipt at performing laboratory)

Reference Range
Not detected

Clinical Significance
Microsporidia infection was first recognized as a cause of chronic diarrhea in patients infected with HIV. Microsporidia may also cause pneumonia, acute bilateral keratoconjunctivitis, and infection of the biliary and pancreatic ducts.

Performing Laboratory
Quest Diagnostics

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.