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 34600-7: HC rearrangements Molgen Ql (CSF)

Name: LOINC Code 34600-7: HC rearrangements Molgen Ql (CSF)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:22.385Z

34600-7 is a LOINC code used to identify HC rearrangements Molgen Ql (CSF) 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 Immunoglobulin heavy chain gene rearrangements. It is commonly used with the system or sample type CSF.

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 Immunoglobulin heavy chain gene rearrangements. It is commonly used with the system or sample type CSF.

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: Molgen

What it does not mean

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

Key facts

HC gene rearrangements [Presence] in Cerebral spinal fluid by Molecular genetics method
Immunoglobulin heavy chain gene rearrangements
Arbitrary; B-cell Clonality; Cerebral spinal fluid; Cerebrospinal Fl; Chains; Chn; Clonality; Genetics; HC gene Rear; Heredity; Heritable; IgH; Immune globulin; Immuno; Immunoglob; Immunoglobin; Imunoglbon; Imunoglobn; Inherited; Leukemia; Lymphoma; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.REARRANGEMENTS; Neuro; Neurology; Ordinal; PCR; Point in time; QL; Qual; Qualitative; Random; Rearr; Rearrangement; Screen; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid

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

HC rearrangements Molgen Ql (CSF)HC gene rearrangements [Presence] in Cerebral spinal fluid by Molecular genetics methodHC gene Rear CSF QlImmunoglobulin heavy chain gene rearrangementsMOLPATH.REARRANGEHC rearrangements, Spinal fluidArb

Frequently asked questions

Code details

Code34600-7

SystemLOINC

Display nameHC rearrangements Molgen Ql (CSF)

DescriptionImmunoglobulin heavy chain gene rearrangements

Short nameHC gene Rear CSF Ql

ComponentImmunoglobulin heavy chain gene rearrangements

PropertyArb

TimingPt

System (specimen)CSF

ScaleOrd

MethodMolgen

ClassMOLPATH.REARRANGE

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.11

Last changed2.73

Consumer names

HC rearrangements, Spinal fluid

Part names

Immunoglobulin heavy chain gene rearrangementsArbPtCSFOrdMolgenHC gene rearrangementsArbitraryPoint in time (spot)Cerebral spinal fluidMolecular genetics

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.