LOINCActiveObservation

LOINC Code 74023-3: Disease of interest in family member

74023-3 is a LOINC code used to identify Disease of interest in family member 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 Disease of interest. 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 Disease of interest. 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

Disease of interest in family member
Disease of interest
This observation is used to report a disease of interest (e.g. malignant tumor of the breast) in the patient's family. The disease may or may not be present in a family member. The term is paired with a negation indicator [LOINC74022-5] to indicate whether the health history for a given family member is negative for the disease. Although similar in nature to LOINC 54116-9 (History of diseases in family member), this code does not indicate a disease in a family member. This term was created for, but not limited in use to, the clinical observation in the Family History section of the V2 VMR based on the Family History Standard Implementation Guide (US Realm) 2012. The recommended code system for answer values is SNOMED CT.
Dis; Diseases; Dz; Fam Mem; Finding; Findings; H+P; H+P.HX; Nominal; P prime; 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

Disease of interest in family memberDisease of interest Fam MemDisease of interestH&P.HXFindPt^Family member

Frequently asked questions

Code details

Code74023-3
SystemLOINC
Display nameDisease of interest in family member
DescriptionDisease of interest
Short nameDisease of interest Fam Mem
ComponentDisease of interest
PropertyFind
TimingPt
System (specimen)^Family member
ScaleNom
ClassH&P.HX
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Disease of interestFindPt^Family memberNomFindingPoint 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.