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HelpTest Code HCY Homocysteine
Additional Codes
| Epic Ordering Code | LAB93 |
| NBS code | LBC04530 |
| Service code | 31053 |
Specimen Requirements
Submit the following:
| Preferred: |
| Purple Top |
Processing Requirements
Send sample on ice to laboratory immediately. Centrifuge within 2 hrs.
Specimen type: Plasma
Volume: 0.5 mL
Specimen Stability
| Specimen Type | Plasma |
|---|---|
| Ambient | Reject |
| Refrigerate | 6 hours (on ice) / 14 days (2 - 8°C) |
| Frozen | 1 year |
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
Monday and Thursday, TAT 6 days
Reference Interval
5.1 – 15.4 umol/L
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of coronary heart disease (CHD) risk, obstetric complication and neural tube defects.
Update
Last updated 17/07/2026
LOINC Code Information
13965-9