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LOINC Code 81706-4: Phosphatase and tensin homolog (PTEN) protein Ag Immune stain Ql (Cancer specimen)

81706-4 is a LOINC code used to identify Phosphatase and tensin homolog (PTEN) protein Ag Immune stain Ql (Cancer specimen) 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 Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN Ag. It is commonly used with the system or sample type Cancer specimen.

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 Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN Ag. It is commonly used with the system or sample type Cancer specimen.

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: Observation
  • Method: Immune stain

What it does not mean

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

Key facts

  • Phosphatase and tensin homolog (PTEN) protein Ag [Presence] in Cancer specimen by Immune stain
  • Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN Ag
  • Antigen; Antigens; aPI; CA; Ca spec; IHC; III; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Ordinal; PATHOLOGY; Phos; Phosph PTEN Ag; Phosphatidyl Inositol; Phosphtase; PI; Point in time; PR; Prot; PTEN protein; Ql; Qual; Qualitative; Random; Screen; Spec; St; Stains; Stn

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

Phosphatase and tensin homolog (PTEN) protein Ag Immune stain Ql (Cancer specimen)Phosphatase and tensin homolog (PTEN) protein Ag [Presence] in Cancer specimen by Immune stainPTEN protein Ag Ca spec Ql ImStnPhosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN AgPATHPhosphatase and Tensin Homolog (PTEN) Protein antigen, Cancer specimenPrThr

Frequently asked questions

Code details

Code81706-4
SystemLOINC
Display namePhosphatase and tensin homolog (PTEN) protein Ag Immune stain Ql (Cancer specimen)
DescriptionPhosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN Ag
Short namePTEN protein Ag Ca spec Ql ImStn
ComponentPhosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN Ag
PropertyPrThr
TimingPt
System (specimen)Cancer specimen
ScaleOrd
MethodImmune stain
ClassPATH
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.82

Consumer names

Phosphatase and Tensin Homolog (PTEN) Protein antigen, Cancer specimen

Part names

Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN AgPrThrPtCancer specimenOrdImmune stainPresence or ThresholdPoint in time (spot)

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.