LOINC

LOINC Code 64003-7: What was the main reason you last visited the dentist [PhenX]

64003-7 is a LOINC code used to identify What was the main reason you last visited the dentist [PhenX] 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 What was the main reason you last visited the dentist. 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 What was the main reason you last visited the dentist. 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: TRIAL
  • Method: PhenX

What it does not mean

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

Key facts

  • What was the main reason you last visited the dentist [PhenX]
  • What was the main reason you last visited the dentist
  • Finding; Findings; Nominal; Past; Point in time; Random; Reason last visited dentist

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

What was the main reason you last visited the dentist [PhenX]Reason last visited dentist PhenXWhat was the main reason you last visited the dentistPHENXFindPt^Patient

Frequently asked questions

Code details

Code64003-7
SystemLOINC
Display nameWhat was the main reason you last visited the dentist [PhenX]
DescriptionWhat was the main reason you last visited the dentist
Short nameReason last visited dentist PhenX
ComponentWhat was the main reason you last visited the dentist
PropertyFind
TimingPt
System (specimen)^Patient
ScaleNom
MethodPhenX
ClassPHENX
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.65

Part names

What was the main reason you last visited the dentistFindPt^PatientNomPhenXFindingPoint 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.