Cleveland HeartLab Standard Laboratory Tests, Test, U

CPT Code: Urinalysis with Microscopic: 81001
Order Code: C916
Includes: Glucose, Protein, Bilirubin, Urobilinogen, pH, Blood, Ketones, Nitrite, Leukocyte esterase, Specific Gravity, Color, Appearance and Microscopic elements if found
ABN Requirement:  No
Synonyms: Urinalysis with Microscopic; UA
Specimen: Urine, Random
Volume:  8.0 mL
Minimum Volume:  3.0 mL
Container: Urine Specimen Tube (Cherry Red/Yellow Top)


  1. Collect urine sample according to standard protocols.
  2. Transfer aliquot from a clean urine cup into a Cherry Red/Yellow Top tube using the vacutainer transfer device included with the Cherry Red/Yellow Top tube.
  3. Gently invert tube 8-10 times
  4. Label sample according to standard protocols.

Patient Preparation:   Patient should be instructed to collect a “clean-catch, midstream” urine specimen.

Transport:   Store urine at 2°C to 8°C after collection and ship the same day per packaging instructions provided with the Cleveland HeartLab shipping box.


Ambient (15-25°C): 2 hours
Refrigerated (2-8°C): 72 hours
Frozen (-20°C): not acceptable
Deep Frozen (-70°C): not acceptable

Causes for Rejection: Grossly bloody or mucoid samples; specimens other than urine in a Cherry Red/Yellow Top tube; improper labeling; samples not stored properly; samples older than stability limits

Methodology: Colorimetric/Automated Microscopic

Turn Around Time: 1 to 3 days

Limitations:  Unusually colored urine due to medication, azo dyes (Pyridium, Azo Gantrisn, and Azo Gantanol) or riboflavin may interfere with any of the urine tests below.

Reference Range: See below

Chemistry Result Reference Range
Glucose <30 mg/dL
Protein ≤20 mg/dL
Bilirubin <0.5 mg/dL
pH 5.0-8.0
Hemoglobin/Blood Negative
Urobilinogen <2 mg/dL
Ketones Negative
Nitrite Negative
Leukocyte Esterase <25 Leu/uL
Specific Gravity 1.005-1.035
Turbidity Clear
Color Colorless to Dark Yellow
Microscopic Result Reference Range
RBC 0-2 cells/HPF
WBC 0-5 cells/HPF
Epithelial Cells 0-5 cells/HPF
Bacteria None HPF
Hyaline Casts <10 cells/LPF

The CPT codes provided 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 payer being billed.