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LOINC Code 84922-4: Cells.chromosome 7 monosomy/Cells counted FISH (Bld/Tiss)

84922-4 is a LOINC code used to identify Cells.chromosome 7 monosomy/Cells counted FISH (Bld/Tiss) in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Cells.chromosome 7 monosomy/Cells counted. It is commonly used with the system or sample type Bld/Tiss.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Cells.chromosome 7 monosomy/Cells counted. It is commonly used with the system or sample type Bld/Tiss.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Both
  • Method: FISH

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

Cells.chromosome 7 monosomy/Cells counted in Blood or Tissue by FISH
Cells.chromosome 7 monosomy/Cells counted
The percent of cells in blood or tissue containing a single copy of chromosome 7 (monosomy 7) can be detected by FISH based on the number of chromosome 7 probe signals and used for the diagnosis of acute myeloid leukemia or myelodysplastic syndrome. This term is used to report the number of cells that have a chromosome 7 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 [LOINC62356-1]. This term is based, but not limited in use to, the Vysis LSI D7S486(7q31)/CEP 7(7p11.1-q11.1) probe kit. To report percentage results for the 7q31 (D7S486) probe deletion, used [LOINC: 84921-6].
Blood; Cell; Cells.Chr Mono 7; Cellularity; Chromosom; Chromosomes; Fluorescent in situ hybridization; Genetics; Heredity; Heritable; Inherited; Molecular pathology; MOLPATH; MOLPATH.DELDUP; Number Fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Tissue; Tissue, unspecified; WB; Whole blood; Whole blood or Tissue

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Cells.chromosome 7 monosomy/Cells counted FISH (Bld/Tiss)Cells.chromosome 7 monosomy/Cells counted in Blood or Tissue by FISHCells.Chr Mono 7/Cells NFr Bld/T FISHCells.chromosome 7 monosomy/Cells countedMOLPATH.DELDUPCells.chromosome 7 monosomy/Cells Counted, Blood or tissue specimenNFr

Frequently asked questions

Code details

Code84922-4
SystemLOINC
Display nameCells.chromosome 7 monosomy/Cells counted FISH (Bld/Tiss)
DescriptionCells.chromosome 7 monosomy/Cells counted
Short nameCells.Chr Mono 7/Cells NFr Bld/T FISH
ComponentCells.chromosome 7 monosomy/Cells counted
PropertyNFr
TimingPt
System (specimen)Bld/Tiss
ScaleQn
MethodFISH
ClassMOLPATH.DELDUP
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.58
Last changed2.61

Consumer names

Cells.chromosome 7 monosomy/Cells Counted, Blood or tissue specimen

Part names

Cells.chromosome 7 monosomy/Cells countedNFrPtBld/TissQnFISHNumber FractionPoint in time (spot)Blood or TissueFluorescent in situ hybridization (FISH)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.