Drug Monitoring, Gabapentin, Quantitative, Urine

Test Code

39407

CPT Code(s)

80355 (HCPCS: G0480)

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

Test Code

39407

CPT Code(s)

80355 (HCPCS: G0480)

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

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Drug Monitoring, Gabapentin, Quantitative, Urine - Gabapentin is used as an anticonvulsant in the management of neuropathic pain in adults and as adjunctive therapy in the treatment of partial seizures in patients with epilepsy. The test is a definitive assay using liquid chromatography mass spectroscopy (LC/MS/MS) methodology. Therapeutic urine drug monitoring of gabapentin is important for ensuring compliance to treatment strategies. Urine or oral fluid are the specimens of choice for routine monitoring of patients taking prescription drugs. Use of serum/plasma should be limited to anuretic patients, or where a patient's clinical appearance does ...

Test Resources

Test Summary

Drug Monitoring, Assess Panels, Quantitative, Urine

Test Details

Includes

If you require medMATCH for this order code, you must also order code 39158 - Prescribed Drugs, medMATCH®. If 39158 is ordered, all Drug Monitoring order codes will be treated as medMATCH.
If this test code is not ordered with 39158, all medMATCH result codes will be DNR’d.

Methodology

Mass Spectrometry (MS)

Assay Category

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Reference Range(s)

Gabapentin

<1000 ng/mL

Alternative Name(s)

Pain Management,Prescription Drug Monitoring

LOINC® Codes, Performing Laboratory

Service Area must be determined

Includes

If you require medMATCH for this order code, you must also order code 39158 - Prescribed Drugs, medMATCH®. If 39158 is ordered, all Drug Monitoring order codes will be treated as medMATCH.

If this test code is not ordered with 39158, all medMATCH result codes will be DNR’d.

Methodology

Mass Spectrometry (MS)

Assay Category

Reference Range(s)

Gabapentin

<1000 ng/mL

Alternative Name(s)

Pain Management,Prescription Drug Monitoring

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

3 mL urine

Alternative Specimen(s)

Urine collected in urine collection container

Minimum Volume

2 mL

Transport Container

Clinical drug test transport vial

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days

Reject Criteria

Preserved samples

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

3 mL urine

Alternative Specimen(s)

Urine collected in urine collection container

Minimum Volume

2 mL

Transport Container

Clinical drug test transport vial

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days

Reject Criteria

Preserved samples

Setup Schedule

Service Area must be determined

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection may be available in your area for purchase through Quest Mobile.

Test Details

Clinical Significance

Test Resources

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.

The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.