What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 30364-4: Lymphocytes FC (Bld) [#/Vol]

Name: LOINC Code 30364-4: Lymphocytes FC (Bld) [#/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

30364-4 is a LOINC code used to identify Lymphocytes FC (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 Lymphocytes. 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 Lymphocytes. 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
Method: Flow cytometry

What it does not mean

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

Key facts

Lymphocytes [#/volume] in Blood by Flow cytometry (FC)
Lymphocytes
#; ABS; absolute; absolutes; Blood; CELL MARKERS; Cnt; Count; Count/volume; CT; Dynamic; FC; Lymp; Lymph; Lympho; Lymphocyte; Lymphs; Lymphs%; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Lymphocytes FC (Bld) [#/Vol] (30364-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Lymphocytes FC (Bld) [#/Vol]Lymphocytes [#/volume] in Blood by Flow cytometry (FC)Lymphocytes # Bld FCLymphocytesCELLMARKLymphocytes, BloodNCnc

Frequently asked questions

Code details

Code30364-4

SystemLOINC

Display nameLymphocytes FC (Bld) [#/Vol]

DescriptionLymphocytes

Short nameLymphocytes # Bld FC

ComponentLymphocytes

PropertyNCnc

TimingPt

System (specimen)Bld

ScaleQn

MethodFlow cytometry

ClassCELLMARK

Example units10*3/uL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.04

Last changed2.73

Consumer names

Lymphocytes, Blood

Part names

LymphocytesNCncPtBldQnFlow cytometryNumber ConcentrationPoint in time (spot)BloodFlow cytometry (FC)

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.