LOINCActiveObservation

LOINC Code 55783-5: Hemoglobin Barts HPLC Ql (Bld)

55783-5 is a LOINC code used to identify Hemoglobin Barts HPLC 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 Barts. 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 Barts. 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: HPLC

What it does not mean

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

Key facts

  • Hemoglobin Barts [Presence] in Blood by HPLC
  • Hemoglobin Barts
  • Bart; Bart's; Blood; Haemoglobin; Hb; HEMATOLOGY/CELL COUNTS; Hgb; Hgb Barts; High performance liquid chromatography; High pressure liquid chromatography; 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 Barts HPLC Ql (Bld)Hemoglobin Barts [Presence] in Blood by HPLCHgb Barts Bld Ql HPLCHemoglobin BartsHEM/BCHemoglobin barts, BloodPrThr

Frequently asked questions

Code details

Code55783-5
SystemLOINC
Display nameHemoglobin Barts HPLC Ql (Bld)
DescriptionHemoglobin Barts
Short nameHgb Barts Bld Ql HPLC
ComponentHemoglobin Barts
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
MethodHPLC
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.56

Consumer names

Hemoglobin barts, Blood

Part names

Hemoglobin BartsPrThrPtBldOrdHPLCPresence or ThresholdPoint in time (spot)BloodHigh pressure liquid chromatography (HPLC)

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.

LOINC Code 55783-5 | HealthAssure