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.

LOINCActiveObservation

LOINC Code 4629-2: Hemoglobin Zurich Elph pH 6.3 Ql (Bld)

Name: LOINC Code 4629-2: Hemoglobin Zurich Elph pH 6.3 Ql (Bld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:31.117Z

4629-2 is a LOINC code used to identify Hemoglobin Zurich Elph pH 6.3 Ql (Bld) 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 Hemoglobin Zurich. It is commonly used with the system or sample type Bld.

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 Hemoglobin Zurich. It is commonly used with the system or sample type Bld.

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: Observation
Method: Electrophoresis pH 6.3

What it does not mean

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

Key facts

Hemoglobin Zurich [Presence] in Blood by Electrophoresis acid (pH 6.3)
Hemoglobin Zurich
Blood; Elec; Elect; Electr; Electro; Electrophhrs; Electrophrs; Elp; Elph; Elph Acid; Ep; Haemoglobin; Hb; HEMATOLOGY/CELL COUNTS; Hgb; Hgb Zurich; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; WB; Whole blood

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

Hemoglobin Zurich Elph pH 6.3 Ql (Bld)Hemoglobin Zurich [Presence] in Blood by Electrophoresis acid (pH 6.3)Hgb Zurich Bld Ql Elph AcidHemoglobin ZurichHEM/BCHemoglobin Zurich, BloodPrThr

Frequently asked questions

Code details

Code4629-2

SystemLOINC

Display nameHemoglobin Zurich Elph pH 6.3 Ql (Bld)

DescriptionHemoglobin Zurich

Short nameHgb Zurich Bld Ql Elph Acid

ComponentHemoglobin Zurich

PropertyPrThr

TimingPt

System (specimen)Bld

ScaleOrd

MethodElectrophoresis pH 6.3

ClassHEM/BC

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.56

Consumer names

Hemoglobin Zurich, Blood

Part names

Hemoglobin ZurichPrThrPtBldOrdElectrophoresis pH 6.3Presence or ThresholdPoint in time (spot)BloodElectrophoresis acid (pH 6.3)

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.