What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 98677-8: Compound muscle action potential area [Area under the curve] Muscle

Name: LOINC Code 98677-8: Compound muscle action potential area [Area under the curve] Muscle
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:31.431Z

98677-8 is a LOINC code used to identify Compound muscle action potential area [Area under the curve] Muscle 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 Compound muscle action potential area. It is commonly used with the system or sample type Muscle.

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 Compound muscle action potential area. It is commonly used with the system or sample type Muscle.

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

Compound muscle action potential area [Area under the curve] Muscle
Compound muscle action potential area
AUC; CMAP area; Musc; Muscl; NEURO; Point in time; QNT; Quan; Quant; Quantitative; 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

Compound muscle action potential area [Area under the curve] MuscleCMAP area AUC MuscleCompound muscle action potential areaNEUROTmElpotPtMuscle

Frequently asked questions

Code details

Code98677-8

SystemLOINC

Display nameCompound muscle action potential area [Area under the curve] Muscle

DescriptionCompound muscle action potential area

Short nameCMAP area AUC Muscle

ComponentCompound muscle action potential area

PropertyTmElpot

TimingPt

System (specimen)Muscle

ScaleQn

MethodNerve conduction

ClassNEURO

Example unitsuV.ms

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.72

Last changed2.72

Part names

Compound muscle action potential areaTmElpotPtMuscleQnNerve conductionArea under the curvePoint 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.