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 4557-5: Hemoglobin Abruzzo Elph pH 8.9 Ql (Bld)

Name: LOINC Code 4557-5: Hemoglobin Abruzzo Elph pH 8.9 Ql (Bld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:31.115Z

4557-5 is a LOINC code used to identify Hemoglobin Abruzzo Elph pH 8.9 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 Abruzzo. 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 Abruzzo. 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 8.9

What it does not mean

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

Key facts

Hemoglobin Abruzzo [Presence] in Blood by Electrophoresis alkaline (pH 8.9)
Hemoglobin Abruzzo
Blood; Elec; Elect; Electr; Electro; Electrophhrs; Electrophrs; Elp; Elph; Elph Alk; Ep; Haemoglobin; Hb; HEMATOLOGY/CELL COUNTS; Hgb; Hgb Abruz; 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 Abruzzo Elph pH 8.9 Ql (Bld)Hemoglobin Abruzzo [Presence] in Blood by Electrophoresis alkaline (pH 8.9)Hgb Abruz Bld Ql Elph AlkHemoglobin AbruzzoHEM/BCHemoglobin Abruzzo, BloodPrThr

Frequently asked questions

Code details

Code4557-5

SystemLOINC

Display nameHemoglobin Abruzzo Elph pH 8.9 Ql (Bld)

DescriptionHemoglobin Abruzzo

Short nameHgb Abruz Bld Ql Elph Alk

ComponentHemoglobin Abruzzo

PropertyPrThr

TimingPt

System (specimen)Bld

ScaleOrd

MethodElectrophoresis pH 8.9

ClassHEM/BC

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.56

Consumer names

Hemoglobin Abruzzo, Blood

Part names

Hemoglobin AbruzzoPrThrPtBldOrdElectrophoresis pH 8.9Presence or ThresholdPoint in time (spot)BloodElectrophoresis alkaline (pH 8.9)

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.