Urinalysis w/ Microscopic

Test Code

DUM

CPT Codes
81001

Preferred Specimen

Urine

Minimum Volume

15 mL

Transport Container

Sterile cup

Transport Temperature

Refrigerated

Specimen Stability

Room Temperature: 2 hours
Refrigerated: 24 hours
Frozen: Unacceptable

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

Specimens received greater than 48 hours after collection.

Reference Range

Amorphous - Absent
Bacteria - Absent
Bilirubin - Negative
Blood - Negative
Broad casts - Absent
Budding Yeast - Absent
Calcium carbonate crystals - Absent
Calcium oxylate crystals per hpf - Rare
Calcium phosphate crystals - Absent
Cellular casts - Absent
Cystine crystals - Absent
Epithelial casts - Absent
Glucose - Negative
Glucose - Normal
Granular casts - Absent
Hyaline casts per lpf - 0-2
Hyphae Yeast - Absent
Ketone - Negative
Leucine crystals - Absent
Leukocyte Esterase - Negative
Mucus - Absent
Nitrite - Negative
Protein - Negative
RBC casts per lpf - Absent
RBC Clump - Absent
RBC per hpf - 0-2
Renal Epithelial cell - Absent
Sperm - Absent
Squamous Epithelial cells per hpf - 0-5
Transitional Epithelial cells - Absent
Trichomonas - Absent
Triple phosphate crystals per hpf - Rare
Turbidity - Clear
Tyrosine crystals - Absent
Uric acid crystals per hpf - Rare
Waxy casts per lpf - Absent
WBC casts per lpf - Absent
WBC Clump - Absent
WBC per hpf - 0-5

Performing Laboratory
This test is performed at the following locations:

MercyOne Siouxland Medical Laboratory
MercyOne Dakota Dunes Medical Laboratory

Last Updated: April 24, 2025

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.