LOINC

LOINC Code 10356-4: Microscopic observation Trichrome stain Nom (Stl)

10356-4 is a LOINC code used to identify Microscopic observation Trichrome stain Nom (Stl) 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 Microscopic observation. It is commonly used with the system or sample type Stool.

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 Microscopic observation. It is commonly used with the system or sample type Stool.

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: DEPRECATED
  • Method: Trichrome stain

What it does not mean

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

Key facts

  • Deprecated Microscopic observation [Identifier] in Stool by Trichrome stain
  • Microscopic observation
  • Bowel movement; Faecal; Faeces; Fecal; Feces; Gastro; Gastroenterology; GI; ID; Identity or presence; Infectious Disease; InfectiousDisease; Microbiology; Nominal; Point in time; Random; St; Stains; Stl; Stn; Stool = Fecal; Tri 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

Microscopic observation Trichrome stain Nom (Stl)Deprecated Microscopic observation [Identifier] in Stool by Trichrome stainDeprecated Tri Stn StlMicroscopic observationMICROMicroscopic observation, StoolPrid

Frequently asked questions

Code details

Code10356-4
SystemLOINC
Display nameMicroscopic observation Trichrome stain Nom (Stl)
DescriptionMicroscopic observation
Short nameDeprecated Tri Stn Stl
ComponentMicroscopic observation
PropertyPrid
TimingPt
System (specimen)Stool
ScaleNom
MethodTrichrome stain
ClassMICRO
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.36

Consumer names

Microscopic observation, Stool

Part names

Microscopic observationPridPtStoolNomTrichrome stainPresence or IdentityPoint 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.

LOINC Code 10356-4 | HealthAssure