Recurring concern
Unreliable ambulance call triage and re-triage
First reported 6 Dec 2013•Latest report 11 May 2026
What this concern includes
Includes failures of the ambulance call triage and re-triage process, including initial clinical validation, categorisation, evidence-based category changes, recognition of new or worsening symptoms, timely re-triage and escalation to a more urgent response.
Not included
- Excludes generic ambulance response delays or resource shortages where the triage or re-triage decision is not deficient.
- Excludes failures in communicating dispatch status or expected response times after a triage decision has been made.
- Excludes downstream ambulance attendance, hospital handover or clinical treatment failures that do not concern ambulance call triage or re-triage.
- Excludes non-ambulance triage processes unless the report explicitly identifies the same ambulance call triage concern.
- Reports
- 50
- Individual concerns
- 61
- Date range
- 2013–2026
- Stated actions
- 72
Distinct published reports
A report can raise multiple concerns
First to latest report issue date
Described in published responses
Reports over time
Reports over time
Reports about this concern issued each year.
* 2026 is projected from reports observed to 7 Sep 2026.
Most frequent recipients
Most frequent recipients
Reports about this concern sent to each recipient.
Concerns and responses across reports
Only concerns grouped under this recurring concern are included. Select any concern, action or position to view the source wording.
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Concerns raised1
Insufficient clinician capacity for timely secondary triage of 999 calls
This report raised 3 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
No linked response statementsNo respondent-stated action or position is linked to these concerns in the published data.
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Concerns raised1
Failure of ambulance call-coding algorithms to generate an appropriate Red response for critically injured patients
This report raised 3 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.2
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Action
Lead a complete review of ambulance coding systems, incorporating previous call outcomes and Coroners’ concerns.
Stated by NHS England -
Action
Trial a new ambulance coding system.
Stated by NHS England
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.4
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Position
The AMPDS system correctly coded the incident as Green 2; available evidence indicated the patient was initially conscious, breathing and not time-critical.
Stated by North West Ambulance Service NHS Trust
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Position
The ambulance-call coding algorithms are not considered inaccurate or unfit for purpose based on the available case evidence.
Stated by Department of Health and Social Care -
Position
Concerns about AMPDS design should be directed to its private producer, Priority Dispatch Corporation UK Limited.
Stated by Department of Health and Social Care -
Position
The ambulance coding system is generally fit for purpose; inaccuracies can arise from caller information and staff interpretation.
Stated by NHS England
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Concerns raised1
Lack of a triage tool to recognise agonal or inadequate breathing
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
No linked response statementsNo respondent-stated action or position is linked to these concerns in the published data.
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Concerns raised1
Failure to proactively ask and record the type of fit during triage calls
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
No linked response statementsNo respondent-stated action or position is linked to these concerns in the published data.
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Concerns raised1
Failure to assign red prioritisation to calls regarding unconscious patients
This report raised 1 other concern. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
No linked response statementsNo respondent-stated action or position is linked to these concerns in the published data.
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Concerns raised1
Omission of chest-pain questions from the breathing-difficulties dispatch card
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.2
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Position
AMPDS users must ask Priority Dispatch directly to review and change the system’s call-handling questions.
Stated by Department of Health and Social Care
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Position
The Department cannot provide further help implementing the proposed AMPDS call-handling changes.
Stated by Department of Health and Social Care
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Concerns raised2
Failure to implement or consider automated call recategorisation
Failure to implement or consider clinical re-triaging
This report raised 13 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.1
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Action
Assess the clinical appropriateness and feasibility of automated call re-categorisation.
Stated by London Ambulance Service NHS Trust
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.2
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Position
Automated call recategorisation could increase risk by causing inappropriate ambulance dispatches and reducing protection for patients requiring eight-minute responses.
Stated by London Ambulance Service NHS Trust
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Position
Existing clinical hub staffing, standard operating procedures and surge-management processes are considered sufficient, removing the need for automated call-handling processes.
Stated by London Ambulance Service NHS Trust
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Concerns raised1
Failure to prevent call takers from downgrading calls to lower-acuity pathways
This report raised 1 other concern. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
No linked response statementsNo respondent-stated action or position is linked to these concerns in the published data.
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Concerns raised1
Failure to allocate appropriate priorities to ambulance calls
This report raised 2 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.1
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Action
Transition from AMPDS to the clinically focused NHS Pathways assessment system.
Stated by South Central Ambulance Service NHS Foundation Trust
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.1
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Position
National-level arrangements determine ambulance response allocation through the licensed AMPDS triage system.
Stated by South Central Ambulance Service NHS Foundation Trust
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Concerns raised1
Failure of ambulance call-takers to correctly assess breathing and triage calls
This report raised 2 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.2
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Action
Provide all Emergency Medical Dispatchers with a six-week training course covering procedures, call taking, first aid, paediatric resuscitation and AMPDS.
Stated by North West Ambulance Service NHS Trust -
Action
Require Emergency Medical Dispatchers to provide continuing-education and audit-review evidence to maintain certification.
Stated by North West Ambulance Service NHS Trust
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.1
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Position
Responsibility for selecting and training ambulance call-taking staff rests with the North West Ambulance Service Trust.
Stated by Department of Health and Social Care
Data last updated 7 September 2026