LOINCActiveObservation

LOINC Code 105059-0: Microscopic observation Nom (Specimen)

105059-0 is a LOINC code used to identify Microscopic observation Nom (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 Observation. It is commonly used with the system or sample type XXX.

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 Observation. It is commonly used with the system or sample type XXX.

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

What it does not mean

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

Key facts

  • Microscopic observation [Identifier] in Specimen
  • Observation
  • Identity or presence; Microbiology; Misc; Miscellaneous; Nominal; Other; Point in time; Random; Spec; To be specified in another part of the message; 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

Microscopic observation Nom (Specimen)Microscopic observation [Identifier] in SpecimenSpecObservationMICROMicroscopic observation, SpecimenPrid

Frequently asked questions

Code details

Code105059-0
SystemLOINC
Display nameMicroscopic observation Nom (Specimen)
DescriptionObservation
Short nameSpec
ComponentObservation
PropertyPrid
TimingPt
System (specimen)XXX
ScaleNom
ClassMICRO
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.78
Last changed2.78

Consumer names

Microscopic observation, Specimen

Part names

ObservationPridPtXXXNomPresence 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 105059-0 | HealthAssure