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Chlamydia pneumoniae, IgG and IgM

Chlamydia (Chlamydophila) pneumoniae, IgG and IgM
Chlamydia pneumoniae, IgG and IgM
CPT

86631; 86632

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  • Updated on 01/26/2026

Test Details

Methodology

Micro-immunofluorescence antibody (MIF) assay

Immunofluorescence

Micro-immunofluorescence antibody (MIF) assay

Result Turnaround Time

2 - 4 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

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Use

This test is intended for the qualitative detection and semi-quantitation of human serum IgM and IgG antibodies to Chlamydia pneumoniae to aid in the diagnosis of community-acquired pneumonia caused by Chlamydia pneumoniae in individuals presenting with pneumonia.

This test is intended for the qualitative detection and semi-quantitation of human serum IgM and IgG antibodies to Chlamydia pneumoniae to aid in the diagnosis of community-acquired pneumonia caused by Chlamydia pneumoniae in individuals presenting with pneumonia.

Limitations

Results of this test are labeled for investigational purposes only by the assay's manufacturer. The performance characteristics of this assay have not been established by the manufacturer. The result should not be used for the treatment or for diagnostic purposes without confirmation of the diagnosis by another medically established diagnostic product or procedure. The performance characteristics were determined by Labcorp. All results must be correlated with clinical history, epidemiological data and other clinical data. 

The performance of this assay has not been established for diagnosing non-pneumonia diseases associated with Chlamydia pneumoniae (e.g., bronchitis, sinusitis, otitis, coronary heart disease, asthma and multiple sclerosis). A negative result does not rule out a present acute infection. A positive result does not always indicate a present acute infection as antibodies can persist in some patients for several months or more.

 

This procedure may be considered by Medicare and other carriers as investigational and, therefore, may not be payable as a covered benefit for patients.

Results of this test are labeled for investigational purposes only by the assay's manufacturer. The performance characteristics of this assay have not been established by the manufacturer. The result should not be used for the treatment or for diagnostic purposes without confirmation of the diagnosis by another medically established diagnostic product or procedure. The performance characteristics were determined by Labcorp. All results must be correlated with clinical history, epidemiological data and other clinical data. 

The performance of this assay has not been established for diagnosing non-pneumonia diseases associated with Chlamydia pneumoniae (e.g., bronchitis, sinusitis, otitis, coronary heart disease, asthma and multiple sclerosis). A negative result does not rule out a present acute infection. A positive result does not always indicate a present acute infection as antibodies can persist in some patients for several months or more.

 

Specimen Requirements

Specimen

Serum

Volume

1 mL

Minimum Volume

0.3 mL

Container

Red-top tube or gel-barrier tube

Storage Instructions

Refrigerate.

Per the package insert: Samples are stable at room temperature for eight hours. After eight hours, samples should be refrigerated at 2° to 8°C for up to 48 hours. After 48 hours, freeze samples at -20°C or colder.

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
138338 Chlamydia pneumoniae(IgG/M) 77166-7 139318 Chlamydia pneumoniae IgG 6913-8
138338 Chlamydia pneumoniae(IgG/M) 77166-7 139319 Chlamydia pneumoniae IgM 6914-6
Order Code138338
Order Code NameChlamydia pneumoniae(IgG/M)
Order Loinc77166-7
Result Code139318
Result Code NameChlamydia pneumoniae IgG
UofM
Result LOINC6913-8
Order Code138338
Order Code NameChlamydia pneumoniae(IgG/M)
Order Loinc77166-7
Result Code139319
Result Code NameChlamydia pneumoniae IgM
UofM
Result LOINC6914-6