Update Type: Test Discontinued
Test Updated: 10/05/2022
Test Overview
Test Methodology

Colorimetric (Vanadate Oxidation)

Test Usage

Liver function test useful in the diagnosis of jaundice due to liver disease, hemolytic anemia, and ABO/Rh incompatability.

Reference Range *

DIRECT BILIRUBIN: < 0.3 mg/dL. TOTAL BILIRUBIN: 1-11 years: 0.2 - 1.0 mg/dL; 12-150 years: 0.2 - 1.2 mg/dL; 0-1 month: Critical Value >=15 mg/dL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

4 hours

Soft Order Code
MiChart Code
Bilirubin, Fractionated
  • TBIL
  • IBIL
  • DBIL
  • Bilirubin, Direct
  • Bilirubin, Indirect
Chemical Pathology
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. Protect specimen from light (place in brown plastic bag or aliquot into brown tube).

Special Handling

Protect specimen from light.

Alternate Specimen
Red top or Green top (sodium or lithium heparin) tube. [rev 11/09]
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Additional Information

Test includes direct bilirubin, total bilirubin, and indirect bilirubin (calculated).
Testing for neonates (NDBIL, NIBIL, NTBIL) less than 1 yr old will be performed on the diazo-based method. see order group NBILI for patients less than 1 yr old.

CPT Code
82247, 82248
Fee Code
20511 TBIL, 20535 DBIL