LOINCActiveBoth

LOINC Code 78237-5: Chr 8 copy number/nucleus FISH (Bld/Tiss) [Entitic number]

78237-5 is a LOINC code used to identify Chr 8 copy number/nucleus FISH (Bld/Tiss) [Entitic number] 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 Chromosome 8 copy number/nucleus. 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 Chromosome 8 copy number/nucleus. 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

  • Chromosome 8 copy number/nucleus in Blood or Tissue by FISH
  • Chromosome 8 copy number/nucleus
  • This term was created for, but is not limited in use to, the CEP 8 SpectrumOrange DNA Probe Kit, which detects AT rich alpha satellite sequences in the centromere region of chromosome 8 in order to identify chromosome 8 copy number. This test is used as an adjunct to routine diagnostic cytogenetic testing involving chromosome 8.
  • Blood; CEP8; Chr 8 copy num; Chromosom; Chromosomes; Entitic; Entitic number; Fluorescent in situ hybridization; Genetics; Heredity; Heritable; Inherited; Molecular pathology; MOLPATH; MOLPATH.TRISOMY; No; Num; Point in time; QNT; Quan; Quant; Quantitative; Random; Tissue; Tissue, unspecified; Ts; 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

Chr 8 copy number/nucleus FISH (Bld/Tiss) [Entitic number]Chromosome 8 copy number/nucleus in Blood or Tissue by FISHChr 8 copy num/nucleus EntNum Bld/T FISHChromosome 8 copy number/nucleusMOLPATH.TRISOMYChromosome 8 copy number/nucleus, Blood or tissue specimenEntNum

Frequently asked questions

Code details

Code78237-5
SystemLOINC
Display nameChr 8 copy number/nucleus FISH (Bld/Tiss) [Entitic number]
DescriptionChromosome 8 copy number/nucleus
Short nameChr 8 copy num/nucleus EntNum Bld/T FISH
ComponentChromosome 8 copy number/nucleus
PropertyEntNum
TimingPt
System (specimen)Bld/Tiss
ScaleQn
MethodFISH
ClassMOLPATH.TRISOMY
Example units#
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.66

Consumer names

Chromosome 8 copy number/nucleus, Blood or tissue specimen

Part names

Chromosome 8 copy number/nucleusEntNumPtBld/TissQnFISHEntitic numberPoint 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.