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.

LOINCOrder

LOINC Code 109744-3: Smith extractable nuclear Ab (CSF) [Measurement]

Name: LOINC Code 109744-3: Smith extractable nuclear Ab (CSF) [Measurement]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:21.043Z

109744-3 is a LOINC code used to identify Smith extractable nuclear Ab (CSF) [Measurement] 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 Smith extractable nuclear Ab. It is commonly used with the system or sample type CSF.

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 Smith extractable nuclear Ab. It is commonly used with the system or sample type CSF.

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: TRIAL
Order vs observation: Order

What it does not mean

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

Key facts

Smith extractable nuclear Ab [Measurement] in Cerebral spinal fluid

Smith extractable nuclear Ab

This term is intended to collate similar measurements for the LOINC SNOMED CT Collaboration in an ontological view. Additionally, it can be used to communicate a laboratory order, either alone or in combination with specimen or other information in the order. It may NOT be used to report back the measured patient value. [https//lo.inc/ce2mb6]

ABS; Aby; ANA; ANF; Antby; Anti; Antibodies; Antibody; Antinuclear antibody; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; ENA; ENA SM; Lab orders; Msmt; NA; Nuc; SM; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid

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

Smith extractable nuclear Ab (CSF) [Measurement]Smith extractable nuclear Ab [Measurement] in Cerebral spinal fluidENA SM Ab Msmt CSFSmith extractable nuclear AbLABORDERS.ONTOLOGYSmith extractable nuclear antibody, Spinal fluid{Measurement}

Frequently asked questions

Code details

Code109744-3

SystemLOINC

Display nameSmith extractable nuclear Ab (CSF) [Measurement]

DescriptionSmith extractable nuclear Ab

Short nameENA SM Ab Msmt CSF

ComponentSmith extractable nuclear Ab

Property{Measurement}

Timing-

System (specimen)CSF

Scale-

ClassLABORDERS.ONTOLOGY

StatusTRIAL

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.81

Last changed2.81

Consumer names

Smith extractable nuclear antibody, Spinal fluid

Part names

Smith extractable nuclear Ab{Measurement}-CSFMeasurementCerebral spinal fluid

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.