LOINCActiveObservation

LOINC Code 412-7: Piperacillin+Tazobactam MIC [Susc]

412-7 is a LOINC code used to identify Piperacillin+Tazobactam MIC [Susc] 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 Piperacillin+Tazobactam. 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 Piperacillin+Tazobactam. 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: Observation
  • Method: MIC

What it does not mean

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

Key facts

  • Piperacillin+Tazobactam [Susceptibility] by Minimum inhibitory concentration (MIC)
  • Piperacillin+Tazobactam
  • ANTIBIOTIC SUSCEPTIBILITIES; AST; ID; Infectious Disease; InfectiousDisease; Islt; Isol; Minimum inhibitory concentration; Pip+Tazo; Piper; PIPJ; Pipracil; Point in time; Random; Sus; Suscept; Susceptibilities; Susceptibility; Susceptibilty; Tazobac; Tazocilline; Tazocin; Zosyn

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

Piperacillin+Tazobactam MIC [Susc]Piperacillin+Tazobactam [Susceptibility] by Minimum inhibitory concentration (MIC)Pip+Tazo Islt MICPiperacillin+TazobactamABXBACTSusceptibility to Piperacillin+TazobactamSusc

Frequently asked questions

Code details

Code412-7
SystemLOINC
Display namePiperacillin+Tazobactam MIC [Susc]
DescriptionPiperacillin+Tazobactam
Short namePip+Tazo Islt MIC
ComponentPiperacillin+Tazobactam
PropertySusc
TimingPt
System (specimen)Isolate
ScaleOrdQn
MethodMIC
ClassABXBACT
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

Susceptibility to Piperacillin+Tazobactam

Part names

Piperacillin+TazobactamSuscPtIsolateOrdQnMICSusceptibility (microorganisms)Point in time (spot)Minimum inhibitory concentration (MIC)

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 412-7 | HealthAssure