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.

LOINCActiveBoth

LOINC Code 63297-6: Nuclear Ab Hep2 substrate (CSF) [Titer]

Name: LOINC Code 63297-6: Nuclear Ab Hep2 substrate (CSF) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:42.802Z

63297-6 is a LOINC code used to identify Nuclear Ab Hep2 substrate (CSF) [Titer] 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 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 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: ACTIVE
Order vs observation: Both
Method: Hep2 substrate

What it does not mean

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

Key facts

Nuclear Ab [Titer] in Cerebral spinal fluid by Hep2 substrate
Nuclear Ab
ABS; Aby; ANA; ANF; Antby; Anti; Antibodies; Antibody; Antinuclear antibody; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; Dilution factor; Dilution Factor (Titer); NA; Neuro; Neurology; Nuc; Point in time; Random; Serology; SmQn; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; Titer; Titered; Titre; Ttr

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

Nuclear Ab Hep2 substrate (CSF) [Titer]Nuclear Ab [Titer] in Cerebral spinal fluid by Hep2 substrateANA Titr CSF HEp2 substNuclear AbSERONuclear antibody, Spinal fluidTitr

Frequently asked questions

Code details

Code63297-6

SystemLOINC

Display nameNuclear Ab Hep2 substrate (CSF) [Titer]

DescriptionNuclear Ab

Short nameANA Titr CSF HEp2 subst

ComponentNuclear Ab

PropertyTitr

TimingPt

System (specimen)CSF

ScaleSemiQn

MethodHep2 substrate

ClassSERO

Example unitstiter

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.75

Consumer names

Nuclear antibody, Spinal fluid

Part names

Nuclear AbTitrPtCSFSemiQnHep2 substrateTiterPoint in time (spot)Cerebral 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.