Comprehensive Metabolic Panel with FIB-4 Index with Reflex to ELF Score
Test Code
12736
80053, 85049
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Clinical Significance
Comprehensive Metabolic Panel with FIB-4 Index with Reflex to 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 PanelTest Details
Comprehensive Metabolic Panel: Albumin, Albumin/Globulin Ratio (calculated), Alkaline Phosphatase, ALT, AST, BUN/Creatinine Ratio (calculated), Calcium, Carbon Dioxide, Chloride, Creatinine with GFR Estimated, Globulin (calculated), Glucose, Potassium, Sodium, Total Bilirubin, Total Protein, Urea Nitrogen
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)
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
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
Room temperature
Specimen Stability
- Serum
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Plasma
Room temperature: 48 hours
Reject Criteria
See individual tests
Setup Schedule
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
Room temperature
Serum
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Plasma
Room temperature: 48 hours
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Plasma
Room temperature: 48 hours
See individual tests