LOINCActiveObservation

LOINC Code 77976-9: Illness or injury end date

77976-9 is a LOINC code used to identify Illness or injury end date 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 Illness or injury end date. 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 Illness or injury end date. 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

  • Illness or injury end date
  • The date when the illness or condition ended.
  • H+P; H+P.HX; P prime; Point in time; QNT; Quan; Quant; Quantitative; Random; Ulcer

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

Illness or injury end dateH&P.HXDatePt^PatientQnPoint in time (spot)

Frequently asked questions

Code details

Code77976-9
SystemLOINC
Display nameIllness or injury end date
Short nameIllness or injury end date
ComponentIllness or injury end date
PropertyDate
TimingPt
System (specimen)^Patient
ScaleQn
ClassH&P.HX
Example unitsMMDDYY
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.52

Part names

Illness or injury end dateDatePt^PatientQnPoint 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 77976-9 | HealthAssure