LOINCActive

LOINC Code 59777-3: Latest date to give immunization

59777-3 is a LOINC code used to identify Latest date to give immunization 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 Latest date to give immunization. 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 Latest date to give immunization. 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

  • Latest date to give immunization
  • Some vaccine series should not be given to patients past a certain age (e.g. not older than five years old for HIB vaccine). This term indicates the date (baed on patient age) past which the immunization should not be given.
  • Immunization status; Point in time; QNT; Quan; Quant; Quantitative; 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

Latest date to give immunizationVACCINDatePt^PatientQnPoint in time (spot)

Frequently asked questions

Code details

Code59777-3
SystemLOINC
Display nameLatest date to give immunization
Short nameLatest date to give immunization
ComponentLatest date to give immunization
PropertyDate
TimingPt
System (specimen)^Patient
ScaleQn
ClassVACCIN
Example unitsMMDDYY
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.32
Last changed2.68

Part names

Latest date to give immunizationDatePt^PatientQnPoint 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 59777-3 | HealthAssure