Osmolality, Urine

Test performed at York Hospital Laboratory.

Test Code

CPT Codes

Preferred Specimen
2 mL random urine collected in a transport tube, no preservative

Minimum Volume
0.5 mL

Transport Temperature
Room temperature

Specimen Stability
  • Room temperature: 4 days
  • Refrigerated: 7 days
  • Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Preserved urine

Freezing point depression

Setup Schedule
Daily Report – available same day

Reference Range
50-1200 mOsm/kg

Clinical Significance
For assessing the concentrating ability of the kidney

Performing Laboratory
York Hospital

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.