Mycoplasma pneumoniae Antibodies, IgG, IgM

CPT: 86738(x2)
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  • Atypical Pneumonia
  • PPLO Antibodies

Expected Turnaround Time

1 - 5 days

Related Documents

Specimen Requirements




1 mL

Minimum Volume

0.5 mL


Red-top tube or gel-barrier tube

Storage Instructions

Maintain specimen at room temperature.

Stability Requirements



Room temperature

14 days


14 days


14 days

Freeze/thaw cycles

Stable x3

Causes for Rejection

Hemolysis; lipemia; gross bacterial contamination

Test Details


Aid in the diagnosis of atypical pneumonia, which is a cause of community-acquired pneumonia. Primary infection usually occurs in children and reinfection in adults is common. Results must be interpreted in light of each patient's history, physical examination, and other diagnostic findings.


Enzyme immunoassay (EIA)

Reference Interval

Negative: IgG: <100 units/mL, IgM: <770 units/mL

Additional Information

A positive result indicates prior exposure to Mycoplasma. A single positive IgG result may be present in the absence of any clinical symptoms as specific IgG antibodies may remain elevated long after initial infection. Recent or acute infection can only be documented by a positive Mycoplasma IgM result and/or a significant increase in the IgG value between sera drawn two to four weeks apart. Specific IgM antibodies may persist for several months after infection or be absent during reinfection.


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
163758 Mycoplasma pneu. IgG/IgM Abs 58733-7 163743 M pneumoniae IgG Abs U/mL 5255-5
163758 Mycoplasma pneu. IgG/IgM Abs 58733-7 163213 M pneumoniae IgM Abs U/mL 5256-3

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