Prolonged Grief Disorder (PGD) | Expert Psychiatric Assessment
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Prolonged Grief Disorder (PGD)
Medico-Legal Expert Reports

Expert psychiatric evaluation for cases involving complicated grief and fatal accidents. Our specialists provide diagnostic clarity using DSM-5-TR and ICD-11 criteria, delivering robust CPR Part 35 compliant evidence for civil litigation and inquests.

DSM-5-TR 309.89 ICD-11 6B42 PG-13-R Assessment Fatal Accident Experts Section 12 Approved

Understanding Prolonged Grief Disorder

What Is Prolonged Grief Disorder?

Prolonged Grief Disorder (PGD), formerly referred to as complicated grief, is a distinct psychiatric condition where an individual experiences intense, persistent yearning and preoccupation with a deceased loved one. Unlike the natural grieving process, PGD involves symptoms that remain severe and disabling long after the bereavement occurred—typically exceeding 12 months for adults and 6 months for children.

Formally recognised in the DSM-5-TR (309.89) and ICD-11 (6B42), PGD is frequently a core component of psychiatric injury claims following fatal road traffic accidents, clinical negligence resulting in death, or workplace fatalities. Expert psychiatric evidence is essential to differentiate PGD from Major Depressive Disorder (MDD) and Post-Traumatic Stress Disorder (PTSD), as the treatment pathways and damages quantification differ significantly.

Diagnostic Criteria (DSM-5-TR)

A diagnosis of PGD requires that the death of a person close to the bereaved occurred at least 12 months ago, with symptoms causing clinically significant impairment in social or occupational functioning:

Core Grief Response

  • Intense yearning or longing for the deceased person
  • Preoccupation with thoughts or memories of the deceased
  • In children, preoccupation may focus on the circumstances of the death
  • Symptoms present most days to a clinically distressing degree

Identity & Social Disruption

  • Identity confusion (feeling a part of oneself has died)
  • Marked sense of disbelief regarding the death
  • Avoidance of reminders that the person is dead
  • Intense emotional pain (anger, bitterness, sorrow)

Emotional Numbing & Detachment

  • Difficulty reintegrating into relationships and activities
  • Emotional numbness (absence or reduction of emotional experience)
  • Feeling that life is meaningless or empty
  • Intense loneliness or feeling detached from others

Functional Impairment

  • Significant disruption in social, occupational, or other areas
  • The duration of the grief response exceeds expected social or cultural norms
  • Symptoms are not better explained by MDD, PTSD, or another disorder

Note: The ICD-11 criteria require symptoms to persist for a minimum of 6 months, while the DSM-5-TR sets the threshold at 12 months for adults.

Prevalence & Medico-Legal Impact

Research suggests that approximately 7–10% of bereaved adults may develop Prolonged Grief Disorder. In the context of “nervous shock” and fatal accident claims, the prevalence is often higher due to the sudden, unexpected, or traumatic nature of the death. Psychiatric experts must carefully assess the “secondary victim” status of claimants and establish a clear causal link between the index event and the onset of pathological grief.

Prolonged Grief Disorder is a critical consideration in fatal accident litigation and dependency claims. Courts rely on expert witnesses to address the complexity of psychiatric injury versus “normal” bereavement:

Threshold: Does the grief response exceed the threshold for a recognised psychiatric injury?
Causation: Is the PGD a direct result of the negligent death or a pre-existing vulnerability?
Differential Diagnosis: Distinguishing PGD from PTSD and Major Depression for accurate pleading.
Functional Impact: How the disorder affects the claimant’s ability to work and care for dependents.
Prognosis: The likely duration of symptoms and the impact of specialist grief therapy.
Treatment Costs: Recommendations for Complicated Grief Therapy (CGT) or targeted CBT.
Secondary Victim Status: Assessing the Alcock criteria in traumatic bereavement cases.
Dependency Claims: Evidence regarding the psychological barriers to returning to the workforce.

Because PGD is a relatively new diagnostic category, instructed experts must be fully conversant with the latest DSM-5-TR updates to ensure reports are legally and clinically robust.

Legal Areas Requiring PGD Assessment

Personal Injury

Fatal RTAs and workplace accidents—secondary victim claims and nervous shock

Clinical Negligence

Deaths resulting from treatment errors, delayed diagnosis, or surgical harm

Inquests & Inquiries

Assessing the psychiatric impact on families following Article 2 inquests

Insurance Claims

Life insurance disputes, income protection, and critical illness claims

CICA Claims

Psychiatric damage following a death caused by a violent crime or assault

Family & Child

Impact of parental bereavement on child welfare and parenting capacity

Military Claims

Service-related fatalities and the impact on surviving family members

Public Law

Human rights claims involving the death of individuals in state custody

Probate Disputes

Assessing the mental state of beneficiaries during high-conflict estate litigation

Employment Law

Constructive dismissal or discrimination related to bereavement leave and PGD

Fatal Accident Act

Evidence for bereavement awards and loss of dependency quantification

Aviation & Travel

Mass casualty events and international fatal accident litigation

Our Assessment Approach

How We Assess

  • Clinical interview focused on bereavement history
  • Validated tools: PG-13-R, ICG (Inventory of Complicated Grief)
  • Screening for comorbid PTSD and Major Depression
  • Review of GP, hospital, and counselling records
  • Evaluation of cultural and social mourning norms
  • Impact on occupational and social role functioning
  • CPR Part 35 compliant expert witness report

Expert Selection

  • Adult General Psychiatrist: PGD, depression, and adjustment disorder—standard civil claims
  • Trauma Specialist: When bereavement is coupled with traumatic witness exposure (PTSD/PGD)
  • Child & Adolescent: Childhood PGD, family proceedings, and dependency assessments
  • Forensic Psychiatrist: Deaths in custody, criminal negligence, and Article 2 inquests
  • Clinical Psychologist: Psychometric testing and specific therapy recommendations

Why Instruct Psychiatry Experts?

UK’s Largest Specialist Panel

Access to 1,500+ experts including specialists in traumatic bereavement and PGD.

Rapid Quote Turnaround

Receive expert CVs, availability, and fixed-fee quotes within 1 hour of enquiry.

Urgent Court Reports

We offer expedited turnaround times (1–4 days) for urgent court deadlines and inquests.

Evidence-Based Diagnosis

Utilising PG-13-R and other validated diagnostic instruments for PGD evaluation.

Nationwide Coverage

Assessments available face-to-face across the UK or via secure remote video link.

CPR Part 35 Compliant

Reports are specifically tailored for court use and withstand rigorous cross-examination.

Frequently Asked Questions

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Other Trauma & Stress Disorders

Post-Traumatic Stress Disorder (PTSD) Complex PTSD (C-PTSD) Acute Stress Disorder Adjustment Disorder Reactive Attachment Disorder (RAD) Disinhibited Social Engagement Disorder (DSED) Trauma-Related Dissociative Disorders
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