Osmolality, Feces

Test Code
OSMF(968)

Quest Code
968

CPT Codes
84999

Preferred Specimen
1 mL of liquid stool

Minimum Volume
0.2 mL

Instructions
Must be naturally occuring, watery stool.

Transport Temperature
Frozen

Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: Not established

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received thawed • Formed stool samples • Received room temperature • Received refrigerated

Methodology
Freezing Point Depression

Setup Schedule
Mon-Fri

Reference Range
See Laboratory Report

Performing Laboratory
Quest Diagnostics Nichols Institute Chantilly
14225 Newbrook Dr
Chantilly, VA 20153



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.