LOINCActiveBoth

LOINC Code 55229-9: Immune stain study

55229-9 is a LOINC code used to identify Immune stain study 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 Immune stain study. 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 Immune stain study. 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

  • Immune stain study
  • DOC.MISC; Document; Finding; Findings; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; MISC; Point in time; Random; St; Stains; Stn; Study report; 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

Immune stain studyDOC.MISCFindPtTissDocImmune stain

Frequently asked questions

Code details

Code55229-9
SystemLOINC
Display nameImmune stain study
Short nameImmune stain study
ComponentImmune stain study
PropertyFind
TimingPt
System (specimen)Tiss
ScaleDoc
MethodImmune stain
ClassDOC.MISC
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.27
Last changed2.72

Part names

Immune stain studyFindPtTissDocImmune stainFindingPoint 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.

LOINC Code 55229-9 | HealthAssure