LOINCActiveObservation

LOINC Code 58681-8: Temperature (U) [Temp]

58681-8 is a LOINC code used to identify Temperature (U) [Temp] 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 Observation. It is commonly used with the system or sample type Urine.

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 Observation. It is commonly used with the system or sample type Urine.

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

  • Temperature of Urine
  • Observation
  • This code is used to report the urine temperature at collection to show that it has not been tampered with (adulteration or swapping a clean urine for a fresh collection for a drug test).
  • Point in time; QNT; Quan; Quant; Quantitative; Random; SPEC; Temperature; UA; UR; Urn

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

Temperature (U) [Temp]Temperature of UrineTemp UrObservationSPECTemperature, UrineTemp

Frequently asked questions

Code details

Code58681-8
SystemLOINC
Display nameTemperature (U) [Temp]
DescriptionObservation
Short nameTemp Ur
ComponentObservation
PropertyTemp
TimingPt
System (specimen)Urine
ScaleQn
ClassSPEC
Example unitsdeg C
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.32
Last changed2.82

Consumer names

Temperature, Urine

Part names

ObservationTempPtUrineQnTemperaturePoint 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 58681-8 | HealthAssure