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NEMSIS 101

Welcome to the NEMSIS 101 page. Here you will find various resources and links that will help you to understand various aspects of NEMSIS including development, implementation and support of the National EMS Data Standard.

If you have questions that are not reflected on this resource page, please reach out to the NEMSIS Technical Assistance Center at nemsis@hsc.utah.edu and we will be happy to connect you to the knowledge and support material you need.

This video provides a concise introduction to NEMSIS. Feel to use and share as needed!

Annual Meeting Resources

Annual Meeting and Boot Camp (2021) – When registration links, a list of topics, and times for the 20201 events become available, they will be posted here.

Annual Meeting and Boot Camp (2020) – Find all of the documents, presentations, and links to recordings of the NEMSIS Annual Meeting and Boot Camp from 2020.

Maintaining the Data Standard

The National EMS data standard is established as the universal standard for the collection, sharing, and assessment of pre-hospital patient encounter documentation throughout the United States and Territories. Regular revisions, updates, and critical patches are necessary to reflect the evolving needs of the broader EMS industry and developing standards for health information exchange.

Data Standard Revision Guide 2020 – Read about the process to maintain and update the data standard.
NEMSIS Versioning Schedule v8 – Review the timeline for version schedule, duration between releases, and version lifespan.

Data Consistency

Pertinent Negatives and Not Values – These are the different methods utilized when a data element is not applicable to a specific EMS activation.
Schematron Errors and Warnings – Learn about the distinction between errors (causing record failures) and warnings (impacting data quality).

State Specific Tools

State/Territory EMS Data Managers are offered personal one-on-one training and assistance in developing and supporting EMS data collection. Additional resources include:

NEMSIS TAC Version 3 On-Boarding Process for States and Territories – Dec 2017 – Review the necessary steps for successful web service submission of data to the NEMSIS TAC.
v3 Version Change Checklist for States and Territories – This checklist is for states and territories that have already implemented a version of NEMSIS V3 and need to implement a new version of NEMSIS V3 (for example, states that have implemented NEMSIS v3.4.0 and need to implement NEMSIS v3.5.0).
State/Territory Data Managers and Vendors – At the request of Data Managers, the TAC has compiled a list of State/Territory Data Managers and the state-level Receive & Process Software Vendor that they use.  (Updated April 5, 2021) (For informational purposes only.)

Understanding NEMSIS v3.5

A revision of the EMS data standard includes support tools and documentation.

Role and Scope of UUID in v3.5.0 – Read about the purpose of Universally Unique Identifiers to track ePCR’s and agency resources over time.
ACS NASEMSO Joint Linkage Policy Statement – This policy statement has as its principal objective, outlining the foundation for linking pre-hospital EMS data to hospital trauma registry data for injured patients at the local, state, and national levels. (4/8/2021)
Patient and Incident Disposition in v3.5.0 – Learn about the adjustment of eDisposition.12 from one element to four elements to more accurately describe the EMS activation.
Harmonizing NEMSIS and CARES in v3.5.0 – Learn about the alignment of NEMSIS and CARES elements to strengthen out-of-hospital cardiac arrest data and reduce documentation redundancy.

Additional information about NEMSIS v3.5 is located here.

Training Opportunities

In addition to twice monthly v3 Implementation Calls and regular State and Public Trainings, NEMSIS offers an Annual Boot Camp and the Annual v3 Implementation Meeting.

Bidirectional Data Exchange

EMS agencies nationwide still widely report that hospitals and other healthcare providers refuse to share patient information with them, citing Health Insurance Portability and Accountability Act (HIPAA) concerns.  Misconceptions about HIPAA create artificial barriers to legitimate, approved bidirectional data exchange between EMS and other providers.  As a result, many healthcare systems are missing a critical opportunity to improve patient outcomes and advance evidence-based practices in prehospital care.

To conclusively answer this question, the NEMSIS Technical Assistance Center collaborated with Page, Wolfberg & Wirth to provide an expert legal opinion regarding the bidirectional sharing of patient information between EMS and other healthcare providers.

HIPAA: An Imaginary Barrier to Data Exchange – Please share and use this White Paper as needed.
Legal Opinion: Sharing Patient Data Bidirectionally Under HIPAA – This brief Legal Opinion describes how bidirectional data sharing of patient information is not only allowed but encouraged under HIPAA. It is developed specifically for healthcare administrators, legal counsel, and risk management.

Custom Data Elements

The NEMSIS TAC collaborates with EMS stakeholders to identify needed National Custom Elements to respond to the COVID-19 pandemic. These custom elements are made available to EMS agencies and States in an effort to standardize the documentation and coding of recent travel and potential exposures related to an infectious disease, like COVID-19.

Infectious Disease National Custom Elements (updated 02/01/2021)
Immunization and Vaccination National Custom Data Elements (Updated 01/13/2021)

Defined Lists

The transition from suggested to Defined Lists is implemented in NEMSIS v3.5. It does not impact previous versions.

Suggested to Defined Lists General Overview – This PowerPoint presentation is a general overview of the transition from suggested to Defined Lists for v3.5.0. (Updated 04/16/2021)
Suggested to Defined Lists Info-Sheet – This info-sheet addresses many frequently asked questions about the purpose and impact of Defined Lists. (Updated 04/22/2021)
Outline of the Process Moving NEMSIS Suggested Lists to Defined Lists – This is the updated PowerPoint presentation detailing the finalized approach to Defined Lists.
Use of Defined Lists for Specific NEMSIS Elements – This fact sheet identifies the history, related issues and potential solutions for Suggested Lists.

ET3: Emergency Triage, Treat and Transport Model Click Here