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.

LOINCObservation

LOINC Code 20492-5: Hemoglobin pattern imp Elph (Bld) [Interp]

Name: LOINC Code 20492-5: Hemoglobin pattern imp Elph (Bld) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:28.848Z

20492-5 is a LOINC code used to identify Hemoglobin pattern imp Elph (Bld) [Interp] 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 pattern imp. 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 pattern imp. 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: DEPRECATED
Order vs observation: Observation
Method: Electrophoresis

What it does not mean

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

Key facts

Deprecated Hemoglobin pattern [interpretation] in Blood by Electrophoresis Narrative
Hemoglobin pattern imp
Blood; Elec; Elect; Electr; Electro; Electrophhrs; Electrophrs; Elp; Elph; Ep; Haemoglobin; Hb; HEMATOLOGY/CELL COUNTS; Hgb; Hgb Fract; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Point in time; QNT; Quan; Quant; Quantitative; Random; 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 pattern imp Elph (Bld) [Interp]Deprecated Hemoglobin pattern [interpretation] in Blood by Electrophoresis NarrativeDeprecated Hgb Bld Elph-ImpHemoglobin pattern impHEM/BCHemoglobin Pattern Imp, BloodImp

Frequently asked questions

Code details

Code20492-5

SystemLOINC

Display nameHemoglobin pattern imp Elph (Bld) [Interp]

DescriptionHemoglobin pattern imp

Short nameDeprecated Hgb Bld Elph-Imp

ComponentHemoglobin pattern imp

PropertyImp

TimingPt

System (specimen)Bld

ScaleQn

MethodElectrophoresis

ClassHEM/BC

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.36

Consumer names

Hemoglobin Pattern Imp, Blood

Part names

Hemoglobin pattern impImpPtBldQnElectrophoresisImpression/interpretation of studyPoint in time (spot)Blood

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.