Test Code IGM Immunoglobulin M

Additional Codes

Epic Ordering Code	LAB72
NBS code	LBC06983
Service code	31614

Specimen Requirements

Submit the following:

Container:

Yellow Top

Processing Requirements

Allow specimen to clot for 30 mins and centrifuge within 2 hours

Specimen type: Serum

Volume: 0.5mL

Specimen Stability

Specimen Type	Serum
Ambient	7 days
Refrigerate	7 days
Frozen	6 months

Specimen Condition

Haemolysis	OK
Icterus	OK
Gross Lipaemia	Alert/Reject
Others	Not applicable

Methodology

Immunoturbidimetry

Days and Times Performed

24 hrs, TAT 1 day

Reference Interval

Age	Male	Female
0 – 14 days	0.1 – 0.4 g/L
15 days – 12 wks	0.1 – 0.7 g/L
13 wks – 1 yr	0.2 – 0.9 g/L
1 – 18 yrs	0.4 – 1.5 g/L	0.5 – 1.9 g/L
≥ 19 yrs	0.2 – 2.4 g/L	0.3 – 2.9 g/L

Testing Laboratory

National University Hospital
Clinical Chemistry, 67724346

Useful For

Detecting or monitoring of monoclonal gammopathies and immune deficiencies.

Update

Last updated 17/07/2026

LOINC Code Information

2472-9

Alias

IgM single test
Immune Competence