LOINCActive

LOINC Code 55272-9: Corynebacterium diphtheriae immunization status

55272-9 is a LOINC code used to identify Corynebacterium diphtheriae immunization status 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 Corynebacterium diphtheriae immunization status. It is commonly used with the system or sample type ^Patient.

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 Corynebacterium diphtheriae immunization status. It is commonly used with the system or sample type ^Patient.

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

What it does not mean

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

Key facts

  • Corynebacterium diphtheriae immunization status
  • C diphtheriae; C diphtheriae immunization status; Diphtheria; Diptheria; H+P; H+P.HX; History; Immunization status; Nominal; P prime; Point in time; Random; Vaccination; Vaccinations; Vaccine

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

Corynebacterium diphtheriae immunization statusC diphtheriae immunization statusH&P.HXHxPt^PatientNom

Frequently asked questions

Code details

Code55272-9
SystemLOINC
Display nameCorynebacterium diphtheriae immunization status
Short nameC diphtheriae immunization status
ComponentCorynebacterium diphtheriae immunization status
PropertyHx
TimingPt
System (specimen)^Patient
ScaleNom
ClassH&P.HX
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.27
Last changed2.27

Part names

Corynebacterium diphtheriae immunization statusHxPt^PatientNomHistoryPoint 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 55272-9 | HealthAssure