LOINCActiveObservation

LOINC Code 4572-4: Hemoglobin Denver Ql (Bld)

4572-4 is a LOINC code used to identify Hemoglobin Denver 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 Denver. 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 Denver. 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

What it does not mean

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

Key facts

  • Hemoglobin Denver [Presence] in Blood
  • Hemoglobin Denver
  • Blood; Haemoglobin; Hb; HEMATOLOGY/CELL COUNTS; Hgb; Hgb Denver; 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 Denver Ql (Bld)Hemoglobin Denver [Presence] in BloodHgb Denver Bld QlHemoglobin DenverHEM/BCHemoglobin denver, BloodPrThr

Frequently asked questions

Code details

Code4572-4
SystemLOINC
Display nameHemoglobin Denver Ql (Bld)
DescriptionHemoglobin Denver
Short nameHgb Denver Bld Ql
ComponentHemoglobin Denver
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.56

Consumer names

Hemoglobin denver, Blood

Part names

Hemoglobin DenverPrThrPtBldOrdPresence 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.

LOINC Code 4572-4 | HealthAssure