LOINCActive

LOINC Code 18685-8: First Blood pressure special circumstances

18685-8 is a LOINC code used to identify First Blood pressure special circumstances 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 Blood pressure special circumstances. 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 Blood pressure special circumstances. 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

What it does not mean

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

Key facts

  • First Blood pressure special circumstances
  • Blood pressure special circumstances
  • 1st; ATTACH; ATTACH.ED; BP; BP special circumstances; DEEDS; Emergency Department; EMERGENCY DEPARTMENT (DEEDS); Encounter; Nominal; 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

First Blood pressure special circumstancesBlood pressure special circumstancesATTACH.EDTypeEnctr^frst^PatientNom

Frequently asked questions

Code details

Code18685-8
SystemLOINC
Display nameFirst Blood pressure special circumstances
DescriptionBlood pressure special circumstances
ComponentBlood pressure special circumstances
PropertyType
TimingEnctr^frst
System (specimen)^Patient
ScaleNom
ClassATTACH.ED
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.21

Part names

Blood pressure special circumstancesTypeEnctr^frst^PatientNom

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 18685-8 | HealthAssure