LOINCActiveObservation

LOINC Code 13046-8: Variant lymphocytes/Leukocytes (Bld)

13046-8 is a LOINC code used to identify Variant lymphocytes/Leukocytes (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 Lymphocytes.variant/Leukocytes. 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 Lymphocytes.variant/Leukocytes. 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

  • Variant lymphocytes/Leukocytes in Blood
  • Lymphocytes.variant/Leukocytes
  • CLSI (formerly NCCLS) document "Reference Leukocyte Differential Count (Proportional) and Evaluation of Instrumental Methods", 1992, recommend the use of variant lymphocytes rather than atypical or reactive lymphocytes.
  • Atypical lymphocytes; Blood; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Lymp; Lymph; Lympho; Lymphocyte; Lymphs; Lymphs%; Number fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Reactive lymphocytes; Variant lymphocytes; Variant Lymphs; WB; WBC; WBCs; White blood cell; White blood cells; 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

Variant lymphocytes/Leukocytes (Bld)Variant lymphocytes/Leukocytes in BloodVariant Lymphs NFr BldLymphocytes.variant/LeukocytesHEM/BCVariant lymphocytes/White Blood Cells, BloodNFr

Frequently asked questions

Code details

Code13046-8
SystemLOINC
Display nameVariant lymphocytes/Leukocytes (Bld)
DescriptionLymphocytes.variant/Leukocytes
Short nameVariant Lymphs NFr Bld
ComponentLymphocytes.variant/Leukocytes
PropertyNFr
TimingPt
System (specimen)Bld
ScaleQn
ClassHEM/BC
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.79

Consumer names

Variant lymphocytes/White Blood Cells, Blood

Part names

Lymphocytes.variant/leukocytesNFrPtBldQnNumber 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 13046-8 | HealthAssure