LOINCActiveBoth

LOINC Code 89358-6: CD27 cells/Cells.CD19 (Bld)

89358-6 is a LOINC code used to identify CD27 cells/Cells.CD19 (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 Cells.CD27/Cells.CD19. 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 Cells.CD27/Cells.CD19. 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

  • CD27 cells/Cells.CD19 in Blood
  • Cells.CD27/Cells.CD19
  • B cells expressing CD19 as a percent of total lymphocytes; B4; B-4; Blood; CD19 Cells; CD27 Cells; CD27- cells; Cell; CELL MARKERS; Cells.CD27+; Cellularity; HD-37; Leu12; Leu-12; Number fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; S152; T14; 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

CD27 cells/Cells.CD19 (Bld)CD27 cells/Cells.CD19 in BloodCD27 Cells/Cells.CD19 NFr BldCells.CD27/Cells.CD19CELLMARKCD27 cells/Cells.CD19, BloodNFr

Frequently asked questions

Code details

Code89358-6
SystemLOINC
Display nameCD27 cells/Cells.CD19 (Bld)
DescriptionCells.CD27/Cells.CD19
Short nameCD27 Cells/Cells.CD19 NFr Bld
ComponentCells.CD27/Cells.CD19
PropertyNFr
TimingPt
System (specimen)Bld
ScaleQn
ClassCELLMARK
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.64
Last changed2.79

Consumer names

CD27 cells/Cells.CD19, Blood

Part names

Cells.CD27/Cells.CD19NFrPtBldQnNumber FractionPoint 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 89358-6 | HealthAssure