LOINC display name : Sample variant allelic frequency;
LOINC long common name : Sample variant allelic frequency [NFr];
LOINC short name : Sample VAF;
LOINC description : The fraction of all reads in a study sample at a given genomic locus that identify
the allele (variant) in question. For homozygotes it will be close to 1.0; for heterozygotes
it will be close to 0.5. It can be less than 0.5 in the case of mosaics or multiple
chromosome, or mixtures of tumor cells and normal cells. This measure is an attribute
of the variant and applies when the method is a Next Generation Sequencing (NGS) or
similar. Such methods provide many reads from the sample for each locus. To report
population allelic frequency, see [LOINC: 92821-8]. Allelic frequency is usually reported
as a decimal fraction for both Sample Variant Allelic Frequency and Population Allelic
Frequency, although it is occasionally reported as a percent. Special care/caution
should be taken when reporting and converting to a decimal fraction.;
Has component