NIH Common Data Elements (CDE) Repository

Value	Code Name	Code	Code System
1	> 6 mV	LA15059-1	LOINC
2	4.0-5.9 mV	LA15060-9	LOINC
3	2.0-3.9 mV	LA15061-7	LOINC
4	0.1-1.9 mV	LA15062-5	LOINC
5	Absent	LA9634-2	LOINC

Designations:

Definition:: The Compound muscle action potential (CMAP) or Compound motor action potential is an electromyography investigation (electrical study of muscle function). The CMAP idealizes the summation of a group of almost simultaneous action potentials from several muscle fibers in the same area. These are usually evoked by stimulation of the motor nerve. Source: Wikipedia, CMAP Definition
Tags:: Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details.

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Related Names

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Related Codes

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Code System	Code	Code Text	Code Version
https://www.phenxtoolkit.org	PX130201080000	PX130201_CMAP

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Fully-Specified Name

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Component	Property	Time	System	Scale	Method
Ulnar compound muscle action potential - CMAP	Find	Pt	^Patient	Nom	PhenX

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Basic Attributes

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Class	Type	First Released	Last Updated	Change Reason
PHENX	Clinical	Version 2.36	Version 2.65	Updated the PhenX ID from "PhenX." to "PX" in Survey Question Source field to align with the variable identifier used in the PhenX Toolkit.

Key:: Third Party Copyright
Value:: This material includes SNOMED Clinical Terms® (SNOMED CT®) which is used by permission of the International Health Terminology Standards Development Organisation (IHTSDO) under license. All rights reserved. SNOMED CT® was originally created by The College of American Pathologists. "SNOMED" and "SNOMED CT" are registered trademarks of the IHTSDO. This material includes content from the US Edition to SNOMED CT, which is developed and maintained by the U.S. National Library of Medicine and is available to authorized UMLS Metathesaurus Licensees from the UTS Downloads site at https://uts.nlm.nih.gov. Use of SNOMED CT content is subject to the terms and conditions set forth in the SNOMED CT Affiliate License Agreement. It is the responsibility of those implementing this product to ensure they are appropriately licensed and for more information on the license, including how to register as an Affiliate Licensee, please refer to http://www.snomed.org/snomed-ct/get-snomed-ct or info@snomed.org<mailto:info@snomed.org>. This may incur a fee in SNOMED International non-Member countries.

Key:: LOINC Copyright
Value:: This material includes SNOMED Clinical Terms® (SNOMED CT®) which is used by permission of the International Health Terminology Standards Development Organisation (IHTSDO) under license. All rights reserved. SNOMED CT® was originally created by The College of American Pathologists. "SNOMED" and "SNOMED CT" are registered trademarks of the IHTSDO. This material includes content from the US Edition to SNOMED CT, which is developed and maintained by the U.S. National Library of Medicine and is available to authorized UMLS Metathesaurus Licensees from the UTS Downloads site at https://uts.nlm.nih.gov. Use of SNOMED CT content is subject to the terms and conditions set forth in the SNOMED CT Affiliate License Agreement. It is the responsibility of those implementing this product to ensure they are appropriately licensed and for more information on the license, including how to register as an Affiliate Licensee, please refer to http://www.snomed.org/snomed-ct/get-snomed-ct or info@snomed.org<mailto:info@snomed.org>. This may incur a fee in SNOMED International non-Member countries.