LOINCActiveBoth

LOINC Code 73910-2: PAX8 Ag Immune stain Ql (Tiss)

73910-2 is a LOINC code used to identify PAX8 Ag Immune stain Ql (Tiss) 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 PAX8 Ag. It is commonly used with the system or sample type Tiss.

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 PAX8 Ag. It is commonly used with the system or sample type Tiss.

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: Immune stain

What it does not mean

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

Key facts

  • PAX8 Ag [Presence] in Tissue by Immune stain
  • PAX8 Ag
  • The result of this cytology stain is usually included as part of, or as an addenda to, a pathology report to aid in interpretation.
  • Antigen; Antigens; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Ordinal; PATHOLOGY; Point in time; PR; QL; Qual; Qualitative; Random; Screen; St; Stains; Stn; Tissue; Tissue, unspecified

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

PAX8 Ag Immune stain Ql (Tiss)PAX8 Ag [Presence] in Tissue by Immune stainPAX8 Ag Tiss Ql ImStnPAX8 AgPATHPAX8 antigen, TissuePrThr

Frequently asked questions

Code details

Code73910-2
SystemLOINC
Display namePAX8 Ag Immune stain Ql (Tiss)
DescriptionPAX8 Ag
Short namePAX8 Ag Tiss Ql ImStn
ComponentPAX8 Ag
PropertyPrThr
TimingPt
System (specimen)Tiss
ScaleOrd
MethodImmune stain
ClassPATH
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.44
Last changed2.73

Consumer names

PAX8 antigen, Tissue

Part names

PAX8 AgPrThrPtTissOrdImmune stainPresence or ThresholdPoint in time (spot)Tissue and Smears

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.