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Coxsackie A Antibodies, Serum

Test Code


CPT Code(s)

86658 (x6)


Coxsackie Antibodies A2, A4, A7, A9, A10, A16

Preferred Specimen(s)

2 mL serum

Minimum Volume

1 mL

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days


Complement Fixation (CF)

Performing Laboratory

Quest Diagnostics Infectious Disease, Inc.
33608 Ortega Highway, Bldg B-West Wing
San Juan Capistrano, CA 92675-2042

Setup Schedule

Set up: Tue-Sat; Report available: 2-5 days


Culture does not usually support growth of coxsackie A viruses.

Reference Range(s)

Coxsackie A2 Ab <1:8
Coxsackie A4 Ab <1:8
Coxsackie A7 Ab <1:8
Coxsackie A9 Ab <1:8
Coxsackie A10 Ab <1:8
Coxsackie A16 Ab <1:8

Clinical Significance

Panel currently includes testing against 2, 4, 7, 9, 10, and 16 antigens. Although there is cross-reactivity among the enteroviruses by CF, most healthy people do not have titers >1: 8. Therefore, detectable titers, especially those >1: 32, should be considered diagnostic. Confirmed serodiagnosis is made by demonstration of a four-fold change in titers between acute and convalescent sera.

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name
85971260Coxsackie A2 AbPending assignment
85971270Coxsackie A4 AbPending assignment
85971280Coxsackie A7 AbPending assignment
85971290Coxsackie A9 AbPending assignment
85971300Coxsackie A10 AbPending assignment
85971310Coxsackie A16 AbPending assignment

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.