What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveOrder

LOINC Code 85421-6: Bacterial identification and susceptibility panel (Isol)

Name: LOINC Code 85421-6: Bacterial identification and susceptibility panel (Isol)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:13.315Z

85421-6 is a LOINC code used to identify Bacterial identification and susceptibility panel (Isol) 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 Bacterial identification & susceptibility panel. It is commonly used with the system or sample type Isolate.

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 Bacterial identification & susceptibility panel. It is commonly used with the system or sample type Isolate.

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: Order
Panel type: Panel

What it does not mean

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

Key facts

Bacterial identification and susceptibility panel - Isolate

Bacterial identification & susceptibility panel

This term is used to order bacterial identification and susceptibility testing for a single bacterial isolate. Results will be reported independently as the bacteria identified [LOINC43409-2] and susceptibility [LOINC: 29576-6], but ordering them together as one panel will allow appropriate grouping of the results in systems that otherwise would be unable to keep them synchronous.

Bact; Bact ID + susc Pnl; ID; Infectious Disease; InfectiousDisease; Islt; Isol; Microbiology; Pan; PANEL.MICROBIOLOGY; Panl; Pnl; Point in time; Random; Sus; Susc; Suscept; Susceptibilities; Susceptibilty

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

Bacterial identification and susceptibility panel (Isol)Bacterial identification and susceptibility panel - IsolateBact ID + susc Pnl IsltBacterial identification & susceptibility panelPANEL.MICROBacterial identification and Susceptibility panel-

Frequently asked questions

Code details

Code85421-6

SystemLOINC

Display nameBacterial identification and susceptibility panel (Isol)

DescriptionBacterial identification & susceptibility panel

Short nameBact ID + susc Pnl Islt

ComponentBacterial identification & susceptibility panel

Property-

TimingPt

System (specimen)Isolate

Scale-

ClassPANEL.MICRO

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.61

Last changed2.61

Consumer names

Bacterial identification and Susceptibility panel

Part names

Bacterial identification & susceptibility panel-PtIsolateBacterial identification and susceptibility panelPoint 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.