FIB-4 Index Panel with Reflex to Enhanced Liver Fibrosis (ELF) Score

FIB-4 Index Panel with Reflex to Enhanced Liver Fibrosis (ELF) Score

Test Code

12734
84450, 84460, 85049
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
12734
84450, 84460, 85049
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 may be available in your area for purchase through Quest Mobile.

Clinical Significance

FIB-4 Index Panel with Reflex to Enhanced Liver Fibrosis (ELF) Score - This reflex provides a cost-effective, medically justified, and guideline supported approach to evaluating a patient at risk of NAFLD with liver fibrosis. If the FIB-4 index is ≥1.30, the ELF score is performed.

Test Resources

Test Summary

Liver Fibrosis, Fibrosis-4 (FIB-4) Index Panel

Test Details

Includes

  • Aspartate Aminotransferase (AST)
    Alanine Aminotransferase (ALT)
    Platelet Count
    FIB 4 Index

    If FIB-4 Index is ≥1.30, then Enhanced Liver Fibrosis (ELF) Score will be performed at an additional charge (CPT code(s): 81517)

Methodology

Electronic Cell Sizing/Counting/Cytometry/Microscopy • Spectrophotometry (SP)

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Calculation, FIB4, NASH, NAFLD, Nonalcoholic, Fatty, Steatosis, Steatohepatitis

LOINC® Codes, Performing Laboratory

Service Area must be determined
Aspartate Aminotransferase (AST)
Alanine Aminotransferase (ALT)
Platelet Count
FIB 4 Index

If FIB-4 Index is ≥1.30, then Enhanced Liver Fibrosis (ELF) Score will be performed at an additional charge (CPT code(s): 81517)

Methodology

Electronic Cell Sizing/Counting/Cytometry/Microscopy • Spectrophotometry (SP)

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Calculation, FIB4, NASH, NAFLD, Nonalcoholic, Fatty, Steatosis, Steatohepatitis
Service Area must be determined

Preferred Specimen(s)

1 mL serum collected in a serum separator tube (SST) and one full tube whole blood collected in an EDTA (lavender-top) tube

Minimum Volume

0.5 mL serum • 1 mL EDTA whole blood or 0.5 mL microtainer-lavender

Transport Container

Serum separator tube (SST) and EDTA (lavender-top) tube

Transport Temperature

⁠⁠⁠⁠⁠⁠⁠Serum: Refrigerated (cold packs)
Whole blood: Room temperature

Specimen Stability

  • ⁠⁠⁠⁠⁠⁠⁠Serum
    Room temperature: 72 hours
    Refrigerated: 5 days
    Frozen: Unacceptable

    Whole blood
    Room temperature: 48 hours
    Refrigerated: Unacceptable
    Frozen: Unacceptable

Reject Criteria

See individual tests

Setup Schedule

Service Area must be determined
1 mL serum collected in a serum separator tube (SST) and one full tube whole blood collected in an EDTA (lavender-top) tube
0.5 mL serum • 1 mL EDTA whole blood or 0.5 mL microtainer-lavender
Serum separator tube (SST) and EDTA (lavender-top) tube
⁠⁠⁠⁠⁠⁠⁠Serum: Refrigerated (cold packs)
Whole blood: Room temperature
⁠⁠⁠⁠⁠⁠⁠Serum
Room temperature: 72 hours
Refrigerated: 5 days
Frozen: Unacceptable

Whole blood
Room temperature: 48 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
See individual tests
Service Area must be determined
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 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.

Customize the test information for your Service Area