Kidney Profile with eGFR (Creatinine-Cystatin C)

Test code

18360

CPT code(s)*

82043, 82565, 82570, 82610

**CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

Not offered in Quest Nichols Institute - Chantilly, VA | Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano | Quest Nichols Institute -San Juan Capistrano, CA. Please provide Service Area Information to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Clinical significance

Kidney Profile with eGFR (Creatinine-Cystatin C) - This profile combines guideline-recommended tests and calculations for staging and monitoring Chronic Kidney Disease (CKD) [1]. These calculations include estimated glomerular filtration rate (eGFR) based on serum creatinine (eGFRcr), eGFR based on serum cystatin C (eGFRcys), eGFR based on combined creatinine and cystatin C (eGFRcr-cys), and urine albumin-creatinine ratio (uACR).Renal function is assessed by measuring the rate at which the blood is cleaned of waste. This is called the "glomerular filtration rate" or "GFR". GFR can be estimated by testing for either of two substances produced by the body:…

Test resources

Test guide

Laboratory Testing for Chronic Kidney Disease Diagnosis and Management

Details

Test details

Includes

Estimated Glomerular Filtration Rate (eGFR) with Creatinine and Cystatin C
Albumin, Random Urine with Creatinine

Methodology

See individual tests

Specimen requirements
Patient preparation	See individual tests
Preferred specimen(s)	3 mL serum and 10 mL random urine collected in plastic urine container
Alternative specimen(s)	Urine collected in: Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Minimum volume	1 ml serum • 2 mL random urine
Collection instructions	See individual tests
Transport container	Transport tube and Plastic urine container
Transport temperature	Room temperature
Specimen stability	Room temperature: 7 days Refrigerated: 7 days Frozen: 28 days
Reject criteria	Serum: Grossly icteric • anticoagulants other than heparin Urine: Acid preserved tube

Reference range(s)

See Laboratory Report

LOINC® codes

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Service Area Information

Performing lab & setup schedule

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Service Area Information

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 guidance 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.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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