LOINCActiveBoth

LOINC Code 34690-8: CV2 Ab Ql

34690-8 is a LOINC code used to identify CV2 Ab Ql 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 CV2 Ab. 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 CV2 Ab. 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: Both

What it does not mean

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

Key facts

  • CV2 Ab [Presence] in Serum or Plasma
  • CV2 Ab
  • Paraneoplastic associated autoantibody
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Collapsin response mediator protein 5; Collapsin response mediator protein 5 Ab; CRMP5; CRMP-5; Ordinal; Pl; Plasma; Plsm; Point in time; POP66; PR; QL; Qual; Qualitative; Random; Screen; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; ULIP

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

CV2 Ab QlCV2 Ab [Presence] in Serum or PlasmaCV2 Ab SerPl QlCV2 AbSEROCV2 antibody, BloodPrThr

Frequently asked questions

Code details

Code34690-8
SystemLOINC
Display nameCV2 Ab Ql
DescriptionCV2 Ab
Short nameCV2 Ab SerPl Ql
ComponentCV2 Ab
PropertyPrThr
TimingPt
System (specimen)Ser/Plas
ScaleOrd
ClassSERO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.11
Last changed2.73

Consumer names

CV2 antibody, Blood

Part names

CV2 AbPrThrPtSer/PlasOrdPresence or ThresholdPoint 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.

LOINC Code 34690-8 | HealthAssure