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 63217-4: Cyclic citrullinated peptide IgG IA Qn (Body fld)

Name: LOINC Code 63217-4: Cyclic citrullinated peptide IgG IA Qn (Body fld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:42.801Z

63217-4 is a LOINC code used to identify Cyclic citrullinated peptide IgG IA Qn (Body fld) 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 Cyclic citrullinated peptide Ab.IgG. It is commonly used with the system or sample type Body fld.

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 Cyclic citrullinated peptide Ab.IgG. It is commonly used with the system or sample type Body fld.

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: IA

What it does not mean

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

Key facts

Cyclic citrullinated peptide IgG Ab [Units/volume] in Body fluid by Immunoassay
Cyclic citrullinated peptide Ab.IgG
ABS; Aby; Antby; Anti; Antibodies; Antibody; Anti-CCP; Arbitrary concentration; Autoantibodies; Autoantibody; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; cCP; CCP3; Cyclic Citrulinated Peptide; EIA; ELFA; ELISA; Enzyme immunoassay; Fl; Fld; FLU; Fluid; IAA; Immune globulin G; Immunoglobulin G; MEIA; Pept; Point in time; QNT; Quan; Quant; Quantitative; Random; Rheum; Rheumatoid arthritis; Rheumatology; Serology; SUDS

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

Cyclic citrullinated peptide IgG IA Qn (Body fld)Cyclic citrullinated peptide IgG Ab [Units/volume] in Body fluid by ImmunoassaycCP IgG Fld IA-aCncCyclic citrullinated peptide Ab.IgGSEROCyclic citrullinated peptide IgG antibody, Body fluidACnc

Frequently asked questions

Code details

Code63217-4

SystemLOINC

Display nameCyclic citrullinated peptide IgG IA Qn (Body fld)

DescriptionCyclic citrullinated peptide Ab.IgG

Short namecCP IgG Fld IA-aCnc

ComponentCyclic citrullinated peptide Ab.IgG

PropertyACnc

TimingPt

System (specimen)Body fld

ScaleQn

MethodIA

ClassSERO

Example unitsarb U/mL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.73

Consumer names

Cyclic citrullinated peptide IgG antibody, Body fluid

Part names

Cyclic citrullinated peptide Ab.IgGACncPtBody fldQnIACyclic Citrullinated Peptide IgGArbitrary ConcentrationPoint in time (spot)Body fluidImmunoassay

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.