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 6864-3: Hemoglobin S Solubility test Ql (Bld)

Name: LOINC Code 6864-3: Hemoglobin S Solubility test Ql (Bld)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

6864-3 is a LOINC code used to identify Hemoglobin S Solubility test 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 S. It is commonly used with the system or sample type Bld.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 S. 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: Both
Method: Solubility test

What it does not mean

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

Key facts

Hemoglobin S [Presence] in Blood by Solubility test
Hemoglobin S
Blood; Haemoglobin; Hb; HBs; HEMATOLOGY/CELL COUNTS; Hgb; Hgb S; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; S prime; Screen; Sickle cell; Sickle cell screen; Sickle cells; Sickledex; Sicklequik; Soly; UniversalLabOrders; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Hemoglobin S Solubility test Ql (Bld) (6864-3)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Hemoglobin S Solubility test Ql (Bld)Hemoglobin S [Presence] in Blood by Solubility testHgb S Bld Ql SolyHemoglobin SHEM/BCHemoglobin S, BloodPrThr

Frequently asked questions

Code details

Code6864-3

SystemLOINC

Display nameHemoglobin S Solubility test Ql (Bld)

DescriptionHemoglobin S

Short nameHgb S Bld Ql Soly

ComponentHemoglobin S

PropertyPrThr

TimingPt

System (specimen)Bld

ScaleOrd

MethodSolubility test

ClassHEM/BC

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0h(2)

Last changed2.73

Consumer names

Hemoglobin S, Blood

Part names

Hemoglobin SPrThrPtBldOrdSolubility testPresence or ThresholdPoint 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.