LOINCActiveObservation

LOINC Code 88877-6: Date vaccination indication effective

88877-6 is a LOINC code used to identify Date vaccination indication effective 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 Date vaccination indication effective. 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 Date vaccination indication effective. 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
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Date vaccination indication effective
  • The date that the indication for vaccination took or will take effect.
  • Date vaccine ind effective; Immunizations; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Date vaccination indication effectiveDate vaccine ind effectiveVACCINDatePt^PatientQn

Frequently asked questions

Code details

Code88877-6
SystemLOINC
Display nameDate vaccination indication effective
Short nameDate vaccine ind effective
ComponentDate vaccination indication effective
PropertyDate
TimingPt
System (specimen)^Patient
ScaleQn
ClassVACCIN
Example unitsMMDDYY
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.64
Last changed2.64

Part names

Date vaccination indication effectiveDatePt^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 88877-6 | HealthAssure