LOINCActiveObservation

LOINC Code 96609-3: Diastolic blood pressure mean

96609-3 is a LOINC code used to identify Diastolic blood pressure mean 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
  • Order vs observation: Observation

What it does not mean

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

Key facts

Diastolic blood pressure mean
Intravascular diastolic
Average (mean) Blood Pressure (systolic and diastolic) is the average of two or more blood pressure (BP) readings in a specified time period or according to a specified algorithm or protocol. During clinical encounters 2 or more BPs should be averaged to more accurately assess a person's BP status. When patients are self-monitoring blood pressure (SMBP), the American Heart Association recommends a minimum of 12 readings collected over at least 3 days should be averaged to more accurately assess a person's BP status (https//www.ahajournals.org/doi/10.1161/HYP.0000000000000087, PMID: 30827125). According to the European Society of Hypertension , "The adverse cardiovascular consequences of hypertension, including events and mortality, largely depend on increased average BP values. Thus, decision-making in hypertension is based on average values of several BP readings obtained in and out of the office" (https://journals.lww.com/jhypertension/Fulltext/2021/07000/2021_European_Society_of_Hypertension_practice.5.aspx, PMID: 33710173).
?Tm; Art sys; Average; Avg; Blood pressure; Blood pressure diastolic; Blood pressure mean; BLOOD PRESSURE MEASUREMENTS.MOLEC; BP; BP dias; BP diastolic; BP mean; DBP; Dias; Dias BP; Diast; Diastoli; Intravenous; IV; MBP; 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 meanBP Dias AvgIntravascular diastolicBP.MOLECPresXXX^meanArterial system

Frequently asked questions

Code details

Code96609-3
SystemLOINC
Display nameDiastolic blood pressure mean
DescriptionIntravascular diastolic
Short nameBP Dias Avg
ComponentIntravascular diastolic
PropertyPres
TimingXXX^mean
System (specimen)Arterial system
ScaleQn
ClassBP.MOLEC
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.69
Last changed2.73

Part names

Intravascular diastolicPresXXX^meanArterial 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 96609-3 | HealthAssure