LOINCActive

LOINC Code 11377-9: Diastolic blood pressure at First encounter

11377-9 is a LOINC code used to identify Diastolic blood pressure at First encounter 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 Intravascular diastolic. It is commonly used with the system or sample type Arterial system.

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 Intravascular diastolic. It is commonly used with the system or sample type Arterial system.

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

  • Diastolic blood pressure at First encounter
  • Intravascular diastolic
  • 1st; Art sys; Blood pressure; Blood pressure diastolic; BLOOD PRESSURE MEASUREMENTS.MOLEC; BP; BP dias; BP diastolic; Cardio; Cardiology; DBP; Dias; Dias BP; Diast; Diastoli; Encounter; Heart Disease; Intravenous; IV; Pressure; QNT; Quan; Quant; Quantitative

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

Diastolic blood pressure at First encounterBP dias 1st enctrIntravascular diastolicBP.MOLECPresEnctr^frstArterial system

Frequently asked questions

Code details

Code11377-9
SystemLOINC
Display nameDiastolic blood pressure at First encounter
DescriptionIntravascular diastolic
Short nameBP dias 1st enctr
ComponentIntravascular diastolic
PropertyPres
TimingEnctr^frst
System (specimen)Arterial system
ScaleQn
ClassBP.MOLEC
Example unitsmm Hg
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.73

Part names

Intravascular diastolicPresEnctr^frstArterial systemQnPressure

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 11377-9 | HealthAssure