LOINCActive

LOINC Code 34020-8: First bone reference [Anatomy] {Dental arch}

34020-8 is a LOINC code used to identify First bone reference [Anatomy] {Dental arch} 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 First bone reference. It is commonly used with the system or sample type {Dental arch}.

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 First bone reference. It is commonly used with the system or sample type {Dental arch}.

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

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • First bone reference [Anatomy] {Dental arch}
  • First bone reference
  • {Dent arch}; 1st bone ref; Anatomy; Dental; Dentistry; Nominal; Point in time; 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

First bone reference [Anatomy] {Dental arch}1st bone ref {Dent arch}First bone referenceDENTALAnatPt{Dental arch}

Frequently asked questions

Code details

Code34020-8
SystemLOINC
Display nameFirst bone reference [Anatomy] {Dental arch}
DescriptionFirst bone reference
Short name1st bone ref {Dent arch}
ComponentFirst bone reference
PropertyAnat
TimingPt
System (specimen){Dental arch}
ScaleNom
ClassDENTAL
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.27

Part names

First bone referenceAnatPt{Dental arch}NomAnatomyPoint 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 34020-8 | HealthAssure