LOINCActiveBoth

LOINC Code 26656-9: HTLV II Ab Ql (S)

26656-9 is a LOINC code used to identify HTLV II Ab Ql (S) 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 HTLV II Ab. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 HTLV II Ab. It is commonly used with the system or sample type Ser.

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

  • HTLV II Ab [Presence] in Serum
  • HTLV II Ab
  • 2; ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Human T-cell Leukemia Virus; Human T-cell Lymphotrophic Virus; ID; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; 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

HTLV II Ab Ql (S)HTLV II Ab [Presence] in SerumHTLV II Ab Ser QlHTLV II AbMICROHTLV II antibody, BloodPrThr

Frequently asked questions

Code details

Code26656-9
SystemLOINC
Display nameHTLV II Ab Ql (S)
DescriptionHTLV II Ab
Short nameHTLV II Ab Ser Ql
ComponentHTLV II Ab
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.73

Consumer names

HTLV II antibody, Blood

Part names

HTLV II AbPrThrPtSerOrdPresence or ThresholdPoint in time (spot)Serum

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 26656-9 | HealthAssure