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Test Name

Bilirubin, Direct

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CPT Code(s)**

82248
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.

Methodology

Spectrophotometry (SP)

Reference Range(s)

≤0.2 mg/dL

Clinical Significance

Measurement of the levels of bilirubin is used in the diagnosis and treatment of liver, hemolytic, hematologic, and metabolic disorders, including hepatitis and gall bladder obstruction. The assessment of direct bilirubin is helpful in the differentiation of hepatic disorders. The increase in total bilirubin associated with obstructive jaundice is primarily due to the direct (conjugated) fraction. Both direct and indirect bilirubin are increased in the serum with hepatitis.

Alternative Name(s)

Conjugated Bilirubin

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 guidelines 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.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

285
285
285
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285
113Q
19687W
19687W
285
19687W
19687W
285
285
285
285
19687W
19687W
285X
19687W
285
285
285
285
18882
285
Bilirubin, Direct
285