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Eosinophil Count, Urine

Test Code


CPT Code(s)


Preferred Specimen(s)

8 mL urine - Urinalysis transport tube (yellow-top, blue fill line, preservative tube)

Minimum Volume

1 mL

Alternative Specimen(s)

Refrigerated unpreserved pediatric sample

Collection Instructions

Encourage clean catch mid stream samples to minimize contamination and improve accuracy. Label the sample appropriately and store at room temperature until pick up.

Transport Container

Yellow-top, blue fill line urinalysis transport tube

Transport Temperature

Preserved: Room temperature
Pediatric Unpreserved: Refrigerated (cold packs)

Specimen Stability

Room temperature: 3 days; preserved specimen
Refrigerated: 1 day; unpreserved pediatric specimen

Reject Criteria

Unpreserved specimen (adults)


Microscopic Examination/Wright's Stain

Performing Laboratory

Quest Diagnostics-Cincinnati
6700 Steger Drive
Cincinnati, OH 45237-3046

Setup Schedule

Set up: Mon-Sun a.m.; Report available: 3 days

Reference Range(s)

No normals established

Clinical Significance

The presence of eosinophils has been noted in pyelonephritis, transplant rejection and drug-induced acute interstitial cystitis.

Alternative Name(s)

Urine for Eosinophils, EOS, Urine

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name
30030100EOSINOPHIL COUNT (U)12210-1Eosinophils/100 leukocytes

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

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.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.