LOINCActiveObservation

LOINC Code 91389-7: Type of substance abused by Family member

91389-7 is a LOINC code used to identify Type of substance abused by 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 Substance abused. 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 Substance abused. 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

  • Type of substance abused by Family member
  • Substance abused
  • Fam Mem; H+P; H+P.HX; Nominal; P prime; Point in time; Random; Subs; Typ

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

Type of substance abused by Family memberType of substance abused by Fam MemSubstance abusedH&P.HXTypePt^Family member

Frequently asked questions

Code details

Code91389-7
SystemLOINC
Display nameType of substance abused by Family member
DescriptionSubstance abused
Short nameType of substance abused by Fam Mem
ComponentSubstance abused
PropertyType
TimingPt
System (specimen)^Family member
ScaleNom
ClassH&P.HX
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.66
Last changed2.67

Part names

Substance abusedTypePt^Family memberNomPoint 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.