81749-4
LaboratoryChromosome region 13q14 deletion in Bone marrow by FISH
Definition
Deletions at 13q14 can be detected by FISH and used for the diagnosis of chronic lymphocytic leukemia (CLL), multiple myeloma, non-Hodgkin's lymphoma (NHL) as well as other forms of cancer. Labs will report the number of cells that have the probe deletion out of total number of cells examined (e.g. 80 out of 100 cells, or 80%). Results are 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 13 (13q14) probe, which targets the RB1 gene and flanking regions.
LOINC 6-Axis Classification
Component
Chromosome region 13q14 deletion
Property
Find
Time Aspect
Pt
System
Bone mar
Scale Type
Doc
Method Type
FISH
Details
Class
MOLPATH.DELDUP
Order/Observation
Both
Short Name
Chr 13q14 Del Mar FISH
Display Name
13q14 del FISH Doc (BM)
Related Names
Frequently Asked Questions
What is LOINC code 81749-4?
LOINC code 81749-4 identifies "Chromosome region 13q14 deletion in Bone marrow by FISH". Deletions at 13q14 can be detected by FISH and used for the diagnosis of chronic lymphocytic leukemia (CLL), multiple myeloma, non-Hodgkin's lymphoma (NHL) as well as other forms of cancer. Labs will report the number of cells that have the probe deletion out of total number of cells examined (e.g. 80 out of 100 cells, or 80%). Results are 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 13 (13q14) probe, which targets the RB1 gene and flanking regions.
What does 81749-4 measure?
This code measures Chromosome region 13q14 deletion in Bone mar. 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.