LOINCActiveBoth

LOINC Code 51584-1: Immature granulocytes (Bld) [#/Vol]

51584-1 is a LOINC code used to identify Immature granulocytes (Bld) [#/Vol] 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 Granulocytes.immature. 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 Granulocytes.immature. 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

What it does not mean

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

Key facts

  • Immature granulocytes [#/volume] in Blood
  • Granulocytes.immature
  • #; ABS; absolute; absolutes; Blood; Cnt; Count; Count/volume; CT; Gran; Grans; Granulocyte; Granulocytes; HEMATOLOGY/CELL COUNTS; Imm; Imm Granulocytes; Immat; Number concentration; Number Concentration (count/vol); 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

Immature granulocytes (Bld) [#/Vol]Immature granulocytes [#/volume] in BloodImm Granulocytes # BldGranulocytes.immatureHEM/BCImmature granulocytes, BloodNCnc

Frequently asked questions

Code details

Code51584-1
SystemLOINC
Display nameImmature granulocytes (Bld) [#/Vol]
DescriptionGranulocytes.immature
Short nameImm Granulocytes # Bld
ComponentGranulocytes.immature
PropertyNCnc
TimingPt
System (specimen)Bld
ScaleQn
ClassHEM/BC
Example units10*9/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.73

Consumer names

Immature granulocytes, Blood

Part names

Granulocytes.immatureNCncPtBldQnImmature granulocytesNumber ConcentrationPoint 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 51584-1 | HealthAssure