LOINCActiveObservation

LOINC Code 74024-1: Family member identifier

74024-1 is a LOINC code used to identify Family member identifier 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 Family member identifier. It is commonly used with the system or sample type ^Family member.

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 Family member identifier. It is commonly used with the system or sample type ^Family member.

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

  • Family member identifier
  • The identifier (e.g. hospital ID or other context-specific identifier such as within a family tree) for an individual's father.
  • ADMIN; Fam Mem; Ident; Identifier; Intradermal; Nominal; Point in time; Random

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

Family member identifierFamily member IDADMIN.IDIDPt^Family memberNom

Frequently asked questions

Code details

Code74024-1
SystemLOINC
Display nameFamily member identifier
Short nameFamily member ID
ComponentFamily member identifier
PropertyID
TimingPt
System (specimen)^Family member
ScaleNom
ClassADMIN.ID
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.46
Last changed2.66

Part names

Family member identifierIDPt^Family memberNomIdentifierPoint 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.