LOINC long common name : Genomic allele start-end;
LOINC short name : Gen allele loc ID;
LOINC description : The variant start-end location is the first genomic position in the reference allele
that contains a change from the reference allele. For example, for the simple variant
NM_014049.4(ACAD9):c.1249C T (p.Arg417Cys), the variant exact start-end location is
Chr3: 128906220 on Assembly GRCh38. [http://www.ncbi.nlm.nih.gov/clinvar/variation/30880/];