Version 2.80

Part Description

LP20029-2   CD21
Found on mature B-cells.
Associated with some mature B-cell neoplasms, including B-cell CLL and Follicular lymphoma Source: Regenstrief LOINC

Fully-Specified Name

Component
Cells.CD21-/Cells.CD19
Property
NFr
Time
Pt
System
Bld
Scale
Qn
Method

Additional Names

Long Common Name
CD21- cells/Cells.CD19 in Blood
Short Name
CD21- cells/Cells.CD19 NFr Bld
Display Name
CD21- cells/Cells.CD19 (Bld)
Consumer Name Alpha Get Info
CD21- cells/Cells.CD19, Blood

Basic Attributes

Class
CELLMARK
Type
Laboratory
First Released
Version 2.64
Last Updated
Version 2.79 (NAM)
Change Reason
Release 2.79: COMPONENT: Triggered by Coll w SCT: This is a specific fraction case where the denominator is percentage or /100. Because the logic is that the percentage piece is captured by Property: NFr (Numeric Fraction), and by Unit: %, therefore, it is redundant to include "100" in the component;
Order vs. Observation
Both

Member of these Panels

LOINC Long Common Name
90414-4 B-cell phenotyping panel - Blood
90416-9 Lymphocyte subset and B-cell phenotyping panel - Blood

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) Células CD21-/Porcentaje de células CD19:Fracción numérica:Punto temporal:Sangre:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Cells.CD21- / 100 Cells.CD19:Fracción numérica:Punto temporal:Sangre:Cuantitativo:
fr-FR French (France) CD21-/100 cellules CD19:Fraction de nombres:Ponctuel:Sang:Numérique:
it-IT Italian (Italy) Cellule.CD21-/Cellule.CD19:NFr:Pt:Sangue:Qn:
Synonyms: Cellule CD19 Cellule CD21 Cellule CD21- Cellule.CD19 Frazione numerica Modelli di superficie cellulare Punto nel tempo (episodio) Sangue
zh-CN Chinese (China) 细胞.CD21-/细胞.CD19:计数型分数:时间点:全血:定量型:
Synonyms: B2 B-2 B4;B-4;HD-37;Leu12;Leu-12 C3d 受体 CD19细胞 CD21细胞 CR2 EBV-R Epstein Barr 病毒受体（Epstein Barr virus receptor，EBV-R，EB 病毒受体） 发现于成熟 B-细胞之上。与某些成熟 B-细胞肿瘤相关，包括 B-细胞慢性淋巴细胞白血病以及滤泡性淋巴瘤。 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 数量型分数;数量或计数型分数;数量型分数或计数型分数 时刻;随机;随意;瞬间 细胞含量;细胞性;细胞性质;细胞构成;细胞类 细胞标志物 血;血液

Example Units

Unit Source
% Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=89355-2