Albumin, Timed Urine : 8280

Test Code
24MAAU or 8280

CPT Codes

Specify total volume and duration of collection on container and test requisition.

Note: Exercise within 24 hours, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values.

Transport Container
Preferred Specimen
5 mL urine aliquot from a well-mixed timed urine collection - no preservative

Alternative Specimen
Urinalysis transport tube (yellow-top, blue fill line, preservative tube)

Minimum Volume
2 mL

Transport Temperature
Room temperature.

Specimen Stability
Room temperature: 7 days; Refrigerated: 14 days; Frozen: 6 months

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


Setup Schedule
Sunday - Saturday

Report Available
1 day

Reference Range
Reference Range

Albumin, Excretion Rate <20 mcg/min 


The ADA defines abnormalities in albumin excretion as follows:

Category                         Result (mcg/min)

Normal                             <20

Microalbuminuria             20-199

Clinical albuminuria         ≥200


The ADA recommends that at least two of three specimens collected within a 3-6 month period be abnormal before considering a patient to be within a diagnostic category.

Clinical Significance
Albumin excreted in the urine (Microalbumin) is a sensitive marker of nephropathy. It is used to screen for early renal disease in diabetic patients.

Performing Laboratory
med fusion

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.