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GlossaryFire and EMS reporting

Medical assist

Medical assist describes medical-related assistance under local rules. Learn the historical NFIRS 311 supporting role and its limits in current data.

Medical assist describes a response providing medical-related assistance, often in support of another responding service. Its exact meaning depends on the agency or reporting system. In historical NFIRS 5.0, code 311 specifically concerns assisting another group or agency that has primary EMS responsibility; it is not a label for every medical response.

A supporting role in a defined system

A fire crew may provide assistance while another EMS organization has the primary care or transport role. The event label can describe that relationship without detailing the patient's condition, every action taken, or the eventual outcome.

The USFA's 2015 NFIRS reference guide defines Medical Assist separately from its general EMS Call category. That distinction is relevant to historical NFIRS files and reports using those codes. A local dispatch system can use similar words with different inclusion rules. NFIRS reference guide, incident types.

Example

Hypothetical example: A fire crew assists an ambulance service with moving a patient, while the ambulance organization retains primary EMS responsibility. In a historical NFIRS record, that supporting activity may fit Medical Assist under the applicable coding rules.

The label does not establish a second patient, a separate transport, or a specific diagnosis. The fire and ambulance records can describe participation in the same event. Counting both as independent emergencies without examining their relationship could overstate incident volume.

Common confusion

Medical assist is not synonymous with mutual aid. Mutual aid concerns assistance arrangements between organizations; the medical-assist label describes a type of activity or role. A response can involve both concepts, but neither implies the other in every system.

It is also different from the job title medical assistant and from medical-assistance benefit programs. In a public-safety activity report, the term refers to the recorded response context.

Read the local definition and year

Check whether the label comes from dispatch, a final incident classification, or a broad public-summary category. Those fields can reflect different stages or purposes. An initial label does not prove what care was ultimately provided.

NFIRS is historical for national incident reporting: USFA states that 2026 incident submissions use NERIS. Do not carry code 311 into a current NERIS dataset as if the code systems were identical. USFA transition guidance.

For a comparison, retain the source's codebook and version, and distinguish event counts from each agency's participation. A short medical-assist entry provides context about recorded activity; it does not replace the patient-care documentation or establish clinical findings.

Sources