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HelpTest Code BILITDI Bilirubin, Total and Direct
Additional Codes
LAB168
Collection Method
Venous Collection
Minimum Volume
1ml
Container
Lt Green / Plasma Separator / Lithium Heparin
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (lithium heparin)
Reference or Target Ranges
Total Bilirubin
| Age | Male | Female |
| 0 - 7 days | 0 - 12 | 0 - 12 |
| 8 days - 1 month | 0 - 10 | 0 - 10 |
| > 1 month | 0 - 1.2 | 0 - 1.2 |
Direct Bilirubin
| Age | Male | Female |
| < 1 month | 0.0 - 0.6 | 0.0 - 0.6 |
| > 1 month | 0.0 - 0.3 | 0.0 - 0.3 |
Indirect Bilirubin
| Age | Male | Female |
| < 1 month | 0.6 - 10.5 | 0.6 - 10.5 |
| > 1 month | 0.0 - 1.1 | 0.0 - 1.1 |
Indirect bilirubin (mg/dL) = Total bilirubin (mg/dL) - Direct bilirubin (mg/dL)
Reportable Units
mg/dL
Critical Value
Total Bilirubin
0-15 days old ≥ 15.0 mg/dL
Direct Bilirubin
Not defined for this assay
Reasons for Rejection
Total Bilirubin
| Hemolysis Threshold | 1000 mg/dL |
| Icterus Threshold | N/A |
| Lipemia Threshold | 1000 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type, not protected from light |
Direct Bilirubin
| Hemolysis Threshold | 30 mg/dL |
| Icterus Threshold | N/A |
| Lipemia Threshold | 100 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type, not protected from light |
Specimen Stability
Total Bilirubin
| Ambient | 1 day |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 6 months |
Direct Bilirubin
| Ambient | 2 days |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 6 months |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | Roche Cobas |
CPT Codes
82248, 82247
Last review/edit date
2025
Special Handling
Protect from light
Panel Components
Total Bilirubin
Direct Bilirubin
Indirect Calculation