LOINCActiveBoth

LOINC Code 91818-5: Bacteria identified Anaer cx Nom (Upper resp)

91818-5 is a LOINC code used to identify Bacteria identified Anaer cx 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 Bacteria. 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 Bacteria. 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: Anaerobic culture

What it does not mean

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

Key facts

  • Bacteria identified in Upper respiratory specimen by Anaerobe culture
  • Bacteria
  • Anaero; Anaerobe; Anaerobe Cult; Bact; Breathing; C&S; Cult; Cultures; Identity or presence; Lungs; Microbiology; Nominal; Point in time; Random; RS; Spec; 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

Bacteria identified Anaer cx Nom (Upper resp)Bacteria identified in Upper respiratory specimen by Anaerobe cultureBacteria Upper resp Anaerobe CultBacteriaMICROBacterial culture, Upper respiratoryPrid

Frequently asked questions

Code details

Code91818-5
SystemLOINC
Display nameBacteria identified Anaer cx Nom (Upper resp)
DescriptionBacteria
Short nameBacteria Upper resp Anaerobe Cult
ComponentBacteria
PropertyPrid
TimingPt
System (specimen)Respiratory system specimen.upper
ScaleNom
MethodAnaerobic culture
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Bacterial culture, Upper respiratory

Part names

BacteriaPridPtRespiratory system specimen.upperNomAnaerobic culturePresence or IdentityPoint in time (spot)Upper respiratory specimenAnaerobe culture

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 91818-5 | HealthAssure