LOINCActiveBoth

LOINC Code 91808-6: Microscopic observation Gram stain Nom (Upper resp)

91808-6 is a LOINC code used to identify Microscopic observation Gram stain Nom (Upper resp) 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 Respiratory system specimen.upper.

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 Respiratory system specimen.upper.

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: Gram stain

What it does not mean

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

Key facts

  • Microscopic observation [Identifier] in Upper respiratory specimen by Gram stain
  • Observation
  • Breathing; Gram Stn; Identity or presence; Lungs; Microbiology; Nominal; Point in time; Random; RS; Spec; St; Stains; Stn; Up; Upper resp

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 Gram stain Nom (Upper resp)Microscopic observation [Identifier] in Upper respiratory specimen by Gram stainGram Stn Upper respObservationMICROMicroscopic observation, Upper respiratoryPrid

Frequently asked questions

Code details

Code91808-6
SystemLOINC
Display nameMicroscopic observation Gram stain Nom (Upper resp)
DescriptionObservation
Short nameGram Stn Upper resp
ComponentObservation
PropertyPrid
TimingPt
System (specimen)Respiratory system specimen.upper
ScaleNom
MethodGram stain
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.66
Last changed2.78

Consumer names

Microscopic observation, Upper respiratory

Part names

ObservationPridPtRespiratory system specimen.upperNomGram stainPresence or IdentityPoint in time (spot)Upper respiratory specimen

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 91808-6 | HealthAssure