LOINCActiveObservation

LOINC Code 41612-3: Tube number Nom (Pleur fld) [ID]

41612-3 is a LOINC code used to identify Tube number Nom (Pleur fld) [ID] 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 Tube number. It is commonly used with the system or sample type Plr fld.

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 Tube number. It is commonly used with the system or sample type Plr fld.

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

  • Tube number of Pleural fluid
  • Tube number
  • Ident; Identifier; No; Nominal; Num; Pleural; Pleural fluid; Point in time; Random; SPEC; thoracentesis fluid; Tube #

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

Tube number Nom (Pleur fld) [ID]Tube number of Pleural fluidTube # PlrTube numberSPECTube number, Pleural fluidID

Frequently asked questions

Code details

Code41612-3
SystemLOINC
Display nameTube number Nom (Pleur fld) [ID]
DescriptionTube number
Short nameTube # Plr
ComponentTube number
PropertyID
TimingPt
System (specimen)Plr fld
ScaleNom
ClassSPEC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.16
Last changed2.19

Consumer names

Tube number, Pleural fluid

Part names

Tube numberIDPtPlr fldNomIdentifierPoint in time (spot)Pleural fluid

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.