What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 90927-5: RET rearrangements FISH Doc (Bld/Tiss)

Name: LOINC Code 90927-5: RET rearrangements FISH Doc (Bld/Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:20.875Z

90927-5 is a LOINC code used to identify RET rearrangements FISH Doc (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 RET gene rearrangements. 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 RET 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

RET gene rearrangements in Blood or Tissue by FISH
RET gene rearrangements
Blood; CDHF12; CDHR16; C-RET; Document; Finding; Findings; Fluorescent in situ hybridization; Genetics; Heredity; Heritable; HSCR1; Inherited; MEN2A; MEN2B; Molecular pathology; MOLPATH; MOLPATH.REARRANGEMENTS; MTC1; Multiple endocrine neoplasia type IIa; Multiple endocrine neoplasia type IIb; Point in time; PTC; Random; Rearr; Rearrangement; ret proto-oncogene; RET51; RET-ELE1; 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

RET rearrangements FISH Doc (Bld/Tiss)RET gene rearrangements in Blood or Tissue by FISHRET gene rearrange Bld/T FISHRET gene rearrangementsMOLPATH.REARRANGERET rearrangements, Blood or tissue specimenFind

Frequently asked questions

Code details

Code90927-5

SystemLOINC

Display nameRET rearrangements FISH Doc (Bld/Tiss)

DescriptionRET gene rearrangements

Short nameRET gene rearrange Bld/T FISH

ComponentRET gene rearrangements

PropertyFind

TimingPt

System (specimen)Bld/Tiss

ScaleDoc

MethodFISH

ClassMOLPATH.REARRANGE

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.65

Last changed2.65

Consumer names

RET rearrangements, Blood or tissue specimen

Part names

RET gene rearrangementsFindPtBld/TissDocFISHFindingPoint 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.