LOINC Code 78221-9: IGH rearrangements FISH Ql (Bld/Tiss)

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 IGH gene rearrangements. 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

• IGH gene rearrangements [Presence] in Blood or Tissue by FISH
• IGH gene rearrangements
• This term was created for, but is not limited in use to, the Vysis LSI IGH Dual Color, Break Apart Rearrangement Probe Kit, which is intended for detecting rearrangements in the immunoglobulin heavy chain (IGH) locus on chromosome region 14q32.
• Blood; Fluorescent in situ hybridization; Genetics; Heredity; Heritable; IGH.1@; IGH@; IGHD@; IGHDY1; IGHJ; IGHJ@; IGHV; IGHV@; immunoglobulin heavy locus; Inherited; Molecular pathology; MOLPATH; MOLPATH.REARRANGEMENTS; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Rearr; Rearrangement; Screen; 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

Frequently asked questions