Advancing Neuromuscular, Musculoskeletal, & Electrodiagnostic Medicine

Coding Change Resources

2013 Final Conversion Factor Graph

Analysis for EMG and NCS Coding Changes

CMS has set the 2014 relative value units (RVUs) for electrodiagnostic codes. Although two EMG codes received a positive increase in work RVUs, most CPT codes were impacted by an across-the-board reduction in practice expense RVUs. The table (click on the picture to expand or download it as a PDF) shows the RVU and reimbursement changes for EMG and NCS.
Click here to expand graph

CPT Coding Changes Toolkit

To help EDX providers understand the impact of yearly CPT changes to their practice, the AANEM has developed a coding toolkit that includes several resources, including:

CPT 2015

  • Analysis of the 2015 Physician Fee Schedule

CPT 2014: Code Changes Every EDX Provider Should Know

  • Crosswalk of chemodenervation CPT codes from 2013 to 2014
  • Analysis of the 2014 CMS Physician Fee Schedule: Numerous changes have been made to EDX codes that will go into effect in 2014. This document details the codes and explains the reporting changes.
  • ICD-10 resources

CPT 2013:  RVU and Reimbursement Reductions

  • 2013 Coding Changes Fact Sheet: Learn the latest information, our work with CMS, and outcomes of appeals.
  • RVU Impact Calculator: Determine how RVU changes impact your practice.
  • Medicare Fee Schedule for EDX Codes: Understand RVU and related information used in the determining of Medicare payment amounts.
  • Crosswalk from 2012 to 2013 CPT Codes: Avoid coding mistakes when transitioning from 2012 to 2013 code sets.
  • 2013 Code Changes Webinar: Listen to a free recording of the webinar, download the slide deck, and use questions and answers from attendees.
  • Appeal Letters: Use these letters to appeal claims denials.
This toolkit is accessible to members by logging into your account. It is updated on an ongoing basis.

Visit the toolkit

Coding Guide

The AANEM Online Coding Guide is the most comprehensive source for EDX coding information including: all neuromuscular CPT and diagnosis codes and detailed explanations of how and when to use new EDX codes and CPT modifiers.

Sections include:
  1. Coding basics
  2. Codes, modifiers, and list of nerves
  3. Evaluation and management coding
  4. ICD-9-CM information
  5. Resource-based relative value scale
  6. Sample billing form and appeal letters
  7. Answers to frequently asked questions
Purchase the Coding Guide in the Marketplace.  If you have already purchased it, you may access it here.

Additional Resources

AANEM provides coding resources to support daily practice decisions and business needs and works to ensure that CPT codes accurately reflect the work performed by electrodiagnostic consultants. Increase your coding knowledge and maximize your reimbursement with AANEM coding resources.

List of Nerves
ICD-10 Diagnosis Coding: A "How To" Guide for Every EDX Practice
These documents may be useful when communicating with a payer about a claim denial:
Appeal Letters
Billing for Same Day Evaluation and Management and Electrodiagnostic Testing


The AANEM is working with its partners, including the American Academy of Neurology and the American Academy of Physical Medicine and Rehabilitation, to communicate with Congress the significant impact a decrease in EDX RVUs has on patient access and quality care. AANEM has also partnered with patient groups and others who are affected by the reductions in 2013.

General Advocacy
The AANEM works with national organizations to shape reimbursement policies and advocates for its members through its involvement in the American Medical Association's Current Procedural Terminology (CPT) and Relative Value Scale Update Committees (RUC).

The AANEM Policy Department routinely reviews and comments on Correct Coding Initiative (CCI) edits, physician work values, and proposed and final rules issued by the Centers for Medicare and Medicaid (CMS).

These activities help ensure that CPT codes and reimbursement rates accurately reflect the work performed by electrodiagnostic physicians.