A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Osmolality, Urine

Test Code
LAB420


Alias/See Also
1231100031


CPT Codes
83935

Includes
OSMOLALITY URINE


Preferred Specimen
Urine - Red Top Tube


Minimum Volume
1.0 mL


Transport Temperature
Room Temperature


Specimen Stability
Room Temperature: 2 hours
Refrigerated: 3 days


Methodology
Osmo Pro Max

Reference Range
Males/Females:
280-1200 mOsm/kg


Performing Laboratory
FORT SMITH LABORATORY LITTLE ROCK LABORATORY


Last Updated: August 26, 2026


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.