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.

LOINCActiveOrder

LOINC Code 101447-1: Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel

Name: LOINC Code 101447-1: Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.027Z

101447-1 is a LOINC code used to identify Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel 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 Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel. It is commonly used with the system or sample type Ser/Plas.

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 Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel. It is commonly used with the system or sample type Ser/Plas.

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: Order
Panel type: Panel

What it does not mean

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

Key facts

Contactin-associated protein 1 Ab.IgG and Neurofascin155 Ab.IgG4 panel - Serum or Plasma
Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel
Assoc; CASPR1; CASPR1 Ab; CASPR1 Ab.IgG; CASPR1 IgG & Neurofascin155 IgG4 pnl; i; Immune globulin G; Immunoglobulin G; Pan; PANEL.SEROLOGY; Panl; Pl; Plasma; Plsm; Pnl; Point in time; PR; Prot; Random; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panelContactin-associated protein 1 Ab.IgG and Neurofascin155 Ab.IgG4 panel - Serum or PlasmaCASPR1 IgG + NF155 IgG4 pnl SerPlPANEL.SEROContactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel, Blood-Pt

Frequently asked questions

Code details

Code101447-1

SystemLOINC

Display nameContactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel

Short nameCASPR1 IgG + NF155 IgG4 pnl SerPl

ComponentContactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel

Property-

TimingPt

System (specimen)Ser/Plas

Scale-

ClassPANEL.SERO

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.74

Last changed2.75

Consumer names

Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel, Blood

Part names

Contactin-associated protein 1 Ab.IgG & Neurofascin155 Ab.IgG4 panel-PtSer/PlasPoint in time (spot)Serum or Plasma

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.