# \#allergy

**URL:** https://forum.loinc.org/tag/allergy/8.md

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## [LOINC 7660-4 Rat muliialgro IgE Ab \[Units/volume\] in Serum](https://forum.loinc.org/t/loinc-7660-4-rat-muliialgro-ige-ab-units-volume-in-serum/2414)

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**Author:** [@js050784](https://forum.loinc.org/u/js050784)\
**Replies:** 4\
**Last updated:** [February 6, 2026, 1:49pm UTC](https://forum.loinc.org/t/loinc-7660-4-rat-muliialgro-ige-ab-units-volume-in-serum/2414 "2026-02-06T13:49:41Z")

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https://loinc.org/7660-4/ I was reviewing some of the allergy-related IgE codes and ran across LOINC code 7660-4. I’ve been unable to find what ‘rat muliialgro’ represents. Does anyone happen to know what this represent…