Deprecated MTHFR gene p.Ala677Val [Presence] in Blood or Tissue by Molecular genetics method 21710-9
LOINC Code
LOINC code | 21710-9 | ||
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name | Deprecated MTHFR gene p.Ala677Val [Presence] in Blood or Tissue by Molecular genetics method | ||
status | DEPRECATED | ||
status reason | Erroneous - This term was meant to represent the amino acid change at codon 222 that is associated with the C to T nucleotide change at position 677 in the MTHFR gene. However, the term was created erroneously in that the codon was specified as 677, instead of 222, and there is an existing term for the C to T change at 677. | ||
Replacements | alternatives to this code:
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Fully-Specified Name | |||
component | MTHFR gene.p.Ala677Val | ||
property | PrThr = Present or threshold: The Property PrThr stands for “Presence or Threshold”, meaning either a) the actual presence or absence of an analyte, or b) that the amount of analyte detected is over some predetermined threshold. | ||
time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
system | Bld/Tiss Bld = Whole blood Tiss = Tissue, unspecified | ||
scale | Ord = Ordinal: Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive. | ||
method | Molgen = Molecular Genetics: General class of methods used to detect genetic attributes on a molecular basis including RFL, PCR and other methods. | ||
Additional Names | |||
short name | Deprecated MTHFR p.A677V Bld/T Ql | ||
Basic Attributes | |||
class | MOLPATH.MUT | ||
type | 1 Laboratory | ||
order vs. observation | Both | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
first released | |||
last updated | 2.65 | ||
last change type | DEL - delete (deprecate) | ||
change reason | Changed Component name to align with the current HGVS recommendations to use the three letter codes for amnio acids. In the shortname, we kept the single letter codes.; The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016. | ||
Related Names | |||
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