LOINCActiveObservation

LOINC Code 33738-6: Closest margin Nom (Spec)

33738-6 is a LOINC code used to identify Closest margin Nom (Spec) 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 Closest margin. It is commonly used with the system or sample type Specimen.

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 Closest margin. It is commonly used with the system or sample type Specimen.

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

  • Closest margin
  • Nominal; Pathology; PATHOLOGY PROTOCOLS; PATHOLOGY PROTOCOLS general; Point in time; Random; Spec; Typ

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

Closest margin Nom (Spec)Closest marginPATH.PROTOCOLS.GENERClosest margin, SpecimenTypePtSpecimen

Frequently asked questions

Code details

Code33738-6
SystemLOINC
Display nameClosest margin Nom (Spec)
DescriptionClosest margin
Short nameClosest margin
ComponentClosest margin
PropertyType
TimingPt
System (specimen)Specimen
ScaleNom
ClassPATH.PROTOCOLS.GENER
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.61

Consumer names

Closest margin, Specimen

Part names

Closest marginTypePtSpecimenNomPoint 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 33738-6 | HealthAssure