MSH test- is this a "normal insurance" covered lab test?

MSH for hypothalamus, if I spelled it right.

There was some talk about this test here a few months ago.- so they might remember if it was a "kit" from a specialty lab or blood draw for a regular lab.

MSH is part of the CIRS tests... which generally is for mold. I have done it in that grouping. Unfortunately, we have a 10k deductible on our small company insurance, so the payment generally comes out of my pocket...