LOINCObservation

LOINC Code 23623-2: Doxycycline Slow-growing Mycobacteria [Susc]

23623-2 is a LOINC code used to identify Doxycycline Slow-growing Mycobacteria [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 Doxycycline. 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 Doxycycline. 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: DEPRECATED
  • Order vs observation: Observation
  • Method: Slow-growing Mycobacteria

What it does not mean

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

Key facts

  • Deprecated Doxycycline [Susceptibility] by Method for Slow-growing mycobacteria
  • Doxycycline
  • ANTIBIOTIC SUSCEPTIBILITIES; AST; c206; c216; ID; Infectious Disease; InfectiousDisease; Islt; Isol; Point in time; Random; Sus; Suscept; Susceptibilities; Susceptibility; Susceptibilty; Vibramycin

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

Doxycycline Slow-growing Mycobacteria [Susc]Deprecated Doxycycline [Susceptibility] by Method for Slow-growing mycobacteriaDeprecated Doxycycline Islt SlowMycoDoxycyclineABXBACTSusceptibility to DoxycyclineSusc

Frequently asked questions

Code details

Code23623-2
SystemLOINC
Display nameDoxycycline Slow-growing Mycobacteria [Susc]
DescriptionDoxycycline
Short nameDeprecated Doxycycline Islt SlowMyco
ComponentDoxycycline
PropertySusc
TimingPt
System (specimen)Isolate
ScaleOrdQn
MethodSlow-growing Mycobacteria
ClassABXBACT
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0n
Last changed2.36

Consumer names

Susceptibility to Doxycycline

Part names

DoxycyclineSuscPtIsolateOrdQnSlow-growing MycobacteriaSusceptibility (microorganisms)Point 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 23623-2 | HealthAssure