LOINCActiveObservation

LOINC Code 98628-1: Sensory nerve action potential amplitude Left ulnar nerve

98628-1 is a LOINC code used to identify Sensory nerve action potential amplitude Left ulnar nerve 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 Sensory nerve action potential amplitude. It is commonly used with the system or sample type Ulnar nerve.left.

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 Sensory nerve action potential amplitude. It is commonly used with the system or sample type Ulnar nerve.left.

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
  • Method: Nerve conduction

What it does not mean

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

Key facts

  • Sensory nerve action potential amplitude Left ulnar nerve
  • Sensory nerve action potential amplitude
  • Electrical potential; L; L ulnar n; LT; NEURO; Point in time; QNT; Quan; Quant; Quantitative; Random; SNAP amplitude; Voltage

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

Sensory nerve action potential amplitude Left ulnar nerveSNAP amplitude L ulnar nSensory nerve action potential amplitudeNEUROElpotPtUlnar nerve.left

Frequently asked questions

Code details

Code98628-1
SystemLOINC
Display nameSensory nerve action potential amplitude Left ulnar nerve
DescriptionSensory nerve action potential amplitude
Short nameSNAP amplitude L ulnar n
ComponentSensory nerve action potential amplitude
PropertyElpot
TimingPt
System (specimen)Ulnar nerve.left
ScaleQn
MethodNerve conduction
ClassNEURO
Example unitsmV
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.72
Last changed2.72

Part names

Sensory nerve action potential amplitudeElpotPtUlnar nerve.leftQnNerve conductionElectrical Potential (Voltage)Point in time (spot)Left ulnar nerve

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.