What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 88438-7: CPR start time

Name: LOINC Code 88438-7: CPR start time
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:16.697Z

88438-7 is a LOINC code used to identify CPR start time 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 Cardiopulmonary resuscitation start time. 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 Cardiopulmonary resuscitation start time. 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
Order vs observation: Observation

What it does not mean

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

Key facts

CPR start time
Cardiopulmonary resuscitation start time
CARD.PROC; Cardio; Cardiology; Clock time; CPR; CPR start time; Heart Disease; Point in time; QNT; Quan; Quant; Quantitative; Random; Started

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

CPR start timeCPR start time Clock timeCardiopulmonary resuscitation start timeCARD.PROCClockTimePt^Patient

Frequently asked questions

Code details

Code88438-7

SystemLOINC

Display nameCPR start time

DescriptionCardiopulmonary resuscitation start time

Short nameCPR start time Clock time

ComponentCardiopulmonary resuscitation start time

PropertyClockTime

TimingPt

System (specimen)^Patient

ScaleQn

ClassCARD.PROC

Example unitsClock time

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.64

Last changed2.70

Part names

Cardiopulmonary resuscitation start timeClockTimePt^PatientQnCPR start timeClock timePoint 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.