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This is a clinician-written, evidence-based summary aligned to the 2026 MLA Content Map. It is intended for medical students and junior doctors preparing for the UKMLA. Always cross-reference with NICE guidance, local protocols, and clinical judgement.
Key points
- Medical Certificate of Cause of Death (MCCD): issued by a doctor who attended the patient in their last illness. Must be completed within 5 days of death (or referred to coroner)
- Part I of MCCD: disease/condition directly leading to death (Ia), due to (Ib), due to (Ic). Part II: other significant conditions contributing but not directly causing death
- Refer to coroner if: cause of death unknown, death unnatural/violent/suspicious, death during/after surgery or anaesthesia, death in custody/state detention, death related to industrial disease, death within 24h of admission (some areas), or not seen by a doctor within 28 days before death
- Medical Examiner (ME): independent scrutiny of all non-coronial deaths — statutory system since 2024
- Cremation forms: cremation requires additional medical scrutiny to prevent destruction of evidence. Medical Examiner now replaces the old Form 5 cremation form system
Overview
When a person dies, a registered medical practitioner who attended the patient during their last illness issues a Medical Certificate of Cause of Death (MCCD). The cause of death is recorded using the WHO International Form, with Part I detailing the causal sequence and Part II listing other significant conditions. If the cause of death is unknown, unnatural, or falls within certain categories, the death must be reported to the coroner. The Coroners and Justice Act 2009 governs coronial investigations. Since 2024, all non-coronial deaths must be scrutinised by a Medical Examiner — a senior doctor independent of the treating team who provides an additional layer of oversight and discusses the cause of death with the bereaved.
Epidemiology
Approximately 550,000 deaths occur in England and Wales each year. Around 40% are referred to the coroner, and the coroner opens an inquest in approximately 15% of referred cases. Post-mortem examination is performed in roughly 25% of coronial cases. The Medical Examiner system was introduced following recommendations from the Shipman Inquiry (2005) and the Francis Report (2013), both of which identified failures in death certification oversight.
When to Refer to the Coroner
Symptoms
Cause of death is unknown
Death was violent, unnatural, or suspicious (including accidents, suicide, homicide)
Death occurred during or shortly after surgery or anaesthesia
Death occurred during or shortly after an invasive procedure
Death may be related to an industrial disease or occupational exposure
Death occurred in custody or state detention (prison, immigration centre, police custody, under DoLS)
Deceased was not seen by a doctor within 28 days before death
Death may be related to neglect (including self-neglect)
Death occurred as a result of an abortion
Death may have been caused by poisoning or a controlled drug
Signs
A death should be referred to the coroner if the doctor cannot write a confident and accurate cause of death on the MCCD
If in doubt — refer. The coroner will decide whether further investigation is needed
Death Certification Process
First-line
Verification of deathConfirm death: absent central pulse, absent heart sounds, absent breath sounds, fixed dilated pupils, no response to central stimulus. Document time of confirmation, not time of death (unless witnessed)
MCCD completionPart Ia: disease/condition directly causing death (e.g. pulmonary embolism). Part Ib: due to (e.g. metastatic lung cancer). Part Ic: due to (e.g. primary lung cancer). Part II: other contributing conditions (e.g. COPD, type 2 diabetes)
Second-line
Medical Examiner scrutinyIndependent review of proposed cause of death. ME reviews medical records, discusses with treating clinician, and speaks with the bereaved to address any concerns. Can refer to coroner if needed
Registration of deathInformant (usually next of kin) takes MCCD to registrar within 5 days. Registrar issues death certificate and burial/cremation permit
Specialist
Coroner's investigationCoroner may order: post-mortem examination (to determine cause of death), inquest (public hearing to establish who died, when, where, and how). Inquest may return a narrative conclusion or short-form conclusion (natural causes, accident, suicide, unlawful killing, open)
Post-mortem typesInvasive (traditional autopsy) or non-invasive/minimally invasive (CT-based — increasingly available). Consent NOT required for coroner-ordered post-mortem. Hospital (consented) post-mortem requires family agreement
Management
Coroners and Justice Act 2009; Notification of Deaths Regulations 2019; Medical Examiner guidance1
Completing the MCCD
- Must be completed by a registered medical practitioner who attended the patient during their last illness
- The cause of death should be the doctor's best medical opinion — it does not need to be histologically confirmed
- Use the WHO International Form: Ia → Ib → Ic is a causal chain. Part II is for contributing conditions
- Avoid vague or unacceptable terms: "old age" is acceptable ONLY if patient is >80 and no specific cause identifiable. "Cardiac arrest", "respiratory failure", and "cachexia" alone are NOT acceptable as Ia — they are modes of dying, not causes
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Medical Examiner system
- Statutory since 2024 — all non-coronial deaths must be scrutinised by an ME
- ME is a senior doctor not involved in the patient's care
- ME contacts the bereaved to discuss the proposed cause of death and address concerns
- ME can accept, amend, or refer the death to the coroner
- Replaces the old cremation Form 5 system — all deaths (burial and cremation) now scrutinised equally
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Referring to the coroner
- Phone the coroner's office and provide: patient details, circumstances of death, brief medical history, concerns
- The coroner decides whether to accept the case or return it for MCCD completion
- If the coroner accepts: do NOT issue an MCCD. The coroner will issue the necessary documentation
- If the coroner declines: the doctor issues the MCCD as normal
Complications
- Inaccurate certification: Incorrect cause of death leads to inaccurate public health data and may mask unlawful deaths
- Failure to refer to coroner: Missing an unnatural or suspicious death — professional and legal consequences
- Delay in certification: Distress for bereaved family, delays to funeral arrangements
- Shipman case: Dr Harold Shipman murdered an estimated 250+ patients — exposed catastrophic failures in death certification oversight, leading to the Medical Examiner system
UKMLA Exam Tips
- 1"Cardiac arrest" and "respiratory failure" are modes of dying, NOT causes of death — never write them alone as Ia
- 2Old age is ONLY acceptable as a cause of death if the patient is >80 with no identifiable specific cause — otherwise you must give a disease diagnosis
- 3Death during surgery, in custody, or from unknown/unnatural causes = MUST refer to coroner
- 4The coroner's role is to establish WHO died, WHEN, WHERE, and HOW — NOT to determine criminal liability (that is the court's role)
- 5Medical Examiner is independent of the treating team — provides oversight and discusses with bereaved. Statutory since 2024
- 6Consent is NOT required for a coroner-ordered post-mortem (but IS required for a hospital post-mortem)
- 7Part I MCCD: causal chain (Ia caused by Ib caused by Ic). Part II: contributing but not causal conditions
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