# LOINC 2.83 Components Containing "plexA" Clarification

**URL:** <https://forum.loinc.org/t/loinc-2-83-components-containing-plexa-clarification/3157>\
**Category:** General\
**Created:** [September 28, 2026, 9:07pm UTC](https://forum.loinc.org/t/loinc-2-83-components-containing-plexa-clarification/3157 "2026-09-28T21:07:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![js050784](https://forum.loinc.org/letter_avatar_proxy/v4/letter/j/a9a28c/32.png) [@js050784](https://forum.loinc.org/u/js050784)\
**Post date:** [September 28, 2026, 9:07pm UTC](https://forum.loinc.org/t/loinc-2-83-components-containing-plexa-clarification/3157/1 "2026-09-28T21:07:26Z")

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Does “plexA” represent multiplex testing? If not, could you describe what it does represent?  
Please see the examples below for reference.

| 114501-0 | Gastrointestinal pathogens 11-plexA DNA and RNA panel - Stool |
| --- | --- |
| 114488-0 | Gastrointestinal pathogens 22-plexA DNA and RNA panel - Stool by NAA with non-probe detection |
| 114498-9 | Pharyngeal pathogens 14-plexA DNA and RNA panel - Throat |
| 114489-8 | Pharyngeal pathogens 15-plexA DNA and RNA panel - Throat by NAA with non-probe detection |
| 114482-3 | Pharyngeal pathogens 5-plexA DNA and RNA panel - Throat |
| 114483-1 | Pharyngeal pathogens 6-plexA DNA and RNA panel - Throat |
| 114493-0 | Respiratory pathogens 15-plexA DNA and RNA panel - Nasopharynx |
| 114499-7 | Respiratory pathogens 23-plexA DNA and RNA panel - Nasopharynx |
| 114500-2 | Respiratory pathogens 24-plexA DNA and RNA panel - Nasopharynx |
| 114487-2 | Respiratory pathogens 33-plexA DNA and RNA panel - Lower respiratory specimen |
| 114484-9 | Respiratory pathogens 34-plexA DNA and RNA panel - Lower respiratory specimen |
| 112279-5 | Respiratory pathogens 5-plexA DNA and RNA panel - Nasopharynx by NAA with non-probe detection |