LOINCActiveObservation

LOINC Code 81955-7: Time of death [ClockTime]

81955-7 is a LOINC code used to identify Time of death [ClockTime] 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 Time of death. 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 Time of death. 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

  • Time of death [ClockTime]
  • Time of death
  • Clock time; H+P; H+P.HX; P prime; Point in time; QNT; Quan; Quant; Quantitative; Random

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

Time of death [ClockTime]Time of death Clock timeTime of deathH&P.HXClockTimePt^Patient

Frequently asked questions

Code details

Code81955-7
SystemLOINC
Display nameTime of death [ClockTime]
DescriptionTime of death
Short nameTime of death Clock time
ComponentTime of death
PropertyClockTime
TimingPt
System (specimen)^Patient
ScaleQn
ClassH&P.HX
Example unitsClock time
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.56

Part names

Time of deathClockTimePt^PatientQnClock 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.

LOINC Code 81955-7 | HealthAssure