84921-6
LaboratoryCells.chromosome region 7q31 deletion/Cells counted in Blood or Tissue by FISH
Definition
The percent of cells in blood or tissue containing the 7q31 deletion can be detected by FISH and used for the diagnosis of acute myeloid leukemia or myelodysplastic syndrome. This term is used to report the number of cells that have the 7q31 deletion out of total number of cells examined (e.g. 80 out of 100 cells, or 80%). Results are also typically reported in ISCN (International System for Human Cytogenetic Nomenclature) format [LOINC: 62356-1]. This term is based, but not limited in use to, the Vysis LSI D7S486/CEP 7 probe kit. To report percentage results for the CEP7 probe, used [LOINC: 84922-4].
LOINC 6-Axis Classification
Component
Cells.chromosome region 7q31 deletion/Cells counted
Property
NFr
Time Aspect
Pt
System
Bld/Tiss
Scale Type
Qn
Method Type
FISH
Details
Class
MOLPATH.DELDUP
Order/Observation
Both
Short Name
Cells.7q31 Del/Cells NFr Bld/T FISH
Display Name
Cells.chromosome region 7q31 del/Cells counted FISH (Bld/Tiss)
Related Names
Frequently Asked Questions
What is LOINC code 84921-6?
LOINC code 84921-6 identifies "Cells.chromosome region 7q31 deletion/Cells counted in Blood or Tissue by FISH". The percent of cells in blood or tissue containing the 7q31 deletion can be detected by FISH and used for the diagnosis of acute myeloid leukemia or myelodysplastic syndrome. This term is used to report the number of cells that have the 7q31 deletion out of total number of cells examined (e.g. 80 out of 100 cells, or 80%). Results are also typically reported in ISCN (International System for Human Cytogenetic Nomenclature) format [LOINC: 62356-1]. This term is based, but not limited in use to, the Vysis LSI D7S486/CEP 7 probe kit. To report percentage results for the CEP7 probe, used [LOINC: 84922-4].
What does 84921-6 measure?
This code measures Cells.chromosome region 7q31 deletion/Cells counted in Bld/Tiss. It belongs to the MOLPATH.DELDUP class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.