SDTMIG-3.2 is based on SDTM model 1.4.
So if VSORNRHI is not in the IG, you need to look into the corresponding model, which in your case is 1.4.
For --ORNRHI in SDTM model 1.4, the label is "Normal Range Upper Limit-Original Units".
Please start learning how to use the CDISC Library: there you can find the anwers to such questions in less than a minute!
For example, in your case, use: https://library.cdisc.org/browser/#/mdr/sdtm/1-4/classes/Findings
Using the CDISC-Library API, you can also automate such processes.
I am getting below mentioned issue related to the model permissible Reference Range variables i have added in Vital sign domain but the label for the variable is going correct. how to resolve this issue are there any other labels present
VSORNRHI, Reference Range Upper Limit in Orig Unit SD0063A SDTM/dataset variable label mismatch
VSORNRLO, Reference Range Lower Limit in Orig Unit SD0063A SDTM/dataset variable label mismatch
VSSTNRHI, Reference Range Upper Limit-Std Units SD0063A SDTM/dataset variable label mismatch
VSSTNRLO, Reference Range Lower Limit-Std Units SD0063A SDTM/dataset variable label mismatch