LOINCObservation

LOINC Code 71464-2: Date first prescribed Medication

71464-2 is a LOINC code used to identify Date first prescribed Medication 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 first prescribed. It is commonly used with the system or sample type Medication.

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 first prescribed. It is commonly used with the system or sample type Medication.

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: TRIAL
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Date first prescribed Medication
  • Date first prescribed
  • Date and time; ESRD; ESRD survey; Med; Point in time; QNT; Quan; Quant; Quantitative; Random; Survey; Time stamp; Timestamp

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 first prescribed MedicationDate first prescribedSURVEY.ESRDTmStpPtMedicationQn

Frequently asked questions

Code details

Code71464-2
SystemLOINC
Display nameDate first prescribed Medication
DescriptionDate first prescribed
ComponentDate first prescribed
PropertyTmStp
TimingPt
System (specimen)Medication
ScaleQn
ClassSURVEY.ESRD
StatusTRIAL
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.40
Last changed2.67

Part names

Date first prescribedTmStpPtMedicationQnTime Stamp (Date and Time)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 71464-2 | HealthAssure