LOINC

LOINC Code 65420-2: Sustained phonation - first AAA for 10 s, then EEE [PhenX]

65420-2 is a LOINC code used to identify Sustained phonation - first AAA for 10 s, then EEE [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 Sustained phonation - first AAA for 10 s, then EEE. 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 Sustained phonation - first AAA for 10 s, then EEE. 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

  • Sustained phonation - first AAA for 10 s, then EEE [PhenX]
  • Sustained phonation - first AAA for 10 s, then EEE
  • Finding; Findings; Ordinal; Point in time; QL; Qual; Qualitative; Random; S prime; Screen

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

Sustained phonation - first AAA for 10 s, then EEE [PhenX]Sustained phonation PhenXSustained phonation - first AAA for 10 s, then EEEPHENXFindPt^Patient

Frequently asked questions

Code details

Code65420-2
SystemLOINC
Display nameSustained phonation - first AAA for 10 s, then EEE [PhenX]
DescriptionSustained phonation - first AAA for 10 s, then EEE
Short nameSustained phonation PhenX
ComponentSustained phonation - first AAA for 10 s, then EEE
PropertyFind
TimingPt
System (specimen)^Patient
ScaleOrd
MethodPhenX
ClassPHENX
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Sustained phonation - first AAA for 10 s, then EEEFindPt^PatientOrdPhenXFindingPoint 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 65420-2 | HealthAssure