Summary
In negligence, a defendant is liable only for losses falling within the risks against which the duty of care required protection. The scope of duty principle is general. It applies to clinical negligence as well as professional advice causing pure economic loss.
For advice or information, the court identifies the purpose of the service and the risk it was intended and reasonably understood to address. Factual “but for” causation and foreseeability cannot enlarge that scope. A clinician advising on a specific genetic risk does not ordinarily assume responsibility for an unrelated disability arising from the general risks of pregnancy.
The SAAMCO counterfactual may assist but is not universal. It asks whether the same loss would have occurred if the information had been correct while the claimant acted as they did.
Factual background
Ms Meadows consulted a general medical practice to discover whether she carried the haemophilia gene. Dr Khan negligently led her to believe that she was not a carrier. Ms Meadows later gave birth to a son with haemophilia and autism. The autism was unrelated to the haemophilia and was not made more likely by it.
Had correct genetic advice been given, Ms Meadows would have obtained foetal testing and terminated the pregnancy after discovering the haemophilia. Dr Khan admitted liability for the additional costs attributable to haemophilia but denied liability for the much larger costs attributable to autism.
Yip J, in [2017] EWHC 2990 (QB); [2018] 4 WLR 8, awarded £9m for both conditions. The Court of Appeal, in [2019] EWCA Civ 152; [2019] 4 WLR 26, reduced the award to £1.4m. The central issue was whether the autism-related costs fell within the scope of the risk against which Dr Khan owed a duty of care.
Held
Appeal dismissed unanimously. Lord Hodge and Lord Sales delivered the majority judgment, with which Lord Reed, Lady Black and Lord Kitchin agreed. Dr Khan was liable only for the costs attributable to haemophilia. Lord Burrows and Lord Leggatt agreed in the result in separate judgments.
The scope of duty principle is a general principle of the law of damages. It is not confined to commercial transactions or pure economic loss and applies to clinical negligence. A defendant is liable only for consequences falling within the risks against which the duty of care required protection.
The majority offered a helpful, non-exclusive six-question model: actionability, scope of duty, breach, factual causation, duty nexus and legal responsibility. The scope question asks what risks of harm the defendant was required to protect the claimant against. Where advice or information contributes only part of the claimant’s decision-making, the court must identify the purpose of the service and separate losses attributable to the risk for which responsibility was undertaken.
Factual “but for” causation and reasonable foreseeability do not answer the scope question. Foreseeability may be relevant, but the nature and purpose of the service are principal considerations. Nor was it necessary to ask separately whether liability was fair, just and reasonable, because established negligence principles governed the case: Robinson v Chief Constable of West Yorkshire Police [2018] UKSC 4.
The SAAMCO counterfactual is an analytical tool rather than a universal test. It assumes that the claimant acted as they actually did and asks whether the same loss would have occurred had the information been correct. It may confirm the allocation of risk, but the scope of duty can sometimes be determined without it.
Dr Khan’s service concerned the specific risk that Ms Meadows might give birth to a child with haemophilia. It did not concern unrelated risks inherent in any pregnancy. Although Dr Khan’s negligence factually caused the continuation of the pregnancy and autism was foreseeable, the autism-related costs lacked the necessary connection with the subject matter of her duty. Had the advice been correct, the child would still have been born with autism.
Lord Burrows preferred a conventional seven-question structure and emphasised fair allocation of risk. Lord Leggatt considered the wider analysis of negligence unnecessary. He framed the inquiry as whether the loss was causally connected with the subject matter for which the professional undertook responsibility. He also observed that a doctor’s duty may extend to an unrequested matter posing a material risk which the doctor ought to recognise. These differences did not affect the disposition.
The court’s approach to earlier authorities
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Appellate history
- United Kingdom Supreme Court: In Khan v Meadows [2021] UKSC 21 , unanimously dismissed Ms Meadows’ appeal and left the Court of Appeal’s £1.4m award undisturbed.
- Court of Appeal: In [2019] EWCA Civ 152 ; [2019] 4 WLR 26 , allowed Dr Khan’s appeal, held that autism-related costs fell outside her duty and reduced the award from £9m to £1.4m.
- High Court: Yip J, in [2017] EWHC 2990 (QB) ; [2018] 4 WLR 8 , held Dr Khan liable for the additional costs associated with both haemophilia and autism and awarded £9m inclusive of interest.
Appeal route
- Appealed from[2019] EWCA Civ 152This appealappeal dismissed (unanimously)
- This judgment [2021] UKSC 21 United Kingdom Supreme Court
Key cases cited
18 authorities cited.
- Manchester Building Society v Grant Thornton UK LLP [2021] UKSC 20
- Robinson v Chief Constable of West Yorkshire Police [2018] UKSC 4
- BPE Solicitors and another v Hughes-Holland [2017] UKSC 21
- Johnston (Original Appellant and Cross-respondent) v. NEI International Combustion Limited (Original Respondents and Cross-appellants)Rothwell (Original Appellant and Cross-respondent) v. Chemical and Insulating Company Limited and others (Original Respondents and Cross-appellants)Topping (Original Appellant and Cross-respondent) v. Benchtown Limited (formerly Jones Bros Preston Limited (Original Respondents and Cross-appellants)(Conjoined Appeals)Grieves (Appellant) v. F T Everard & Sons and others (Respondents) [2007] UKHL 39
- Kuwait Airways Corporation v Iraqi Airways Company and Other Kuwait Airways Corporation v Iraqi Airways Company and Other (Consolidated Appeals [2002] UKHL 19
- Aneco Reinsurance Underwriting Limited v. Johnson & Higgins [2001] UKHL 51
- Platform Home Loans Ltd v Oyston Shipways Ltd [2000] 2 AC 190
- Nykredit Mortgage Bank plc v Edward Erdman Group Ltd (formerly Edward Erdman) (No 2) [1997] 1 WLR 1627
- Banque Bruxelles Lambert SA v Eagle Star Insurance Co Ltd (BNP Mortgages Ltd v Goadsby & Harding Ltd, BNP Mortgages Ltd v Key Surveyors Nationwide Ltd, United Bank of Kuwait Plc v Prudential Property Services Ltd, South Australia Asset Management Corpn v York Montague Ltd) [1997] AC 191
- Caparo Industries plc v Dickman [1990] 2 AC 605
- Hughes v Lord Advocate [1963] AC 837
- Groom v Selby [2001] EWCA Civ 1522
- Parkinson v St James and Seacroft University Hospital NHS Trust [2001] EWCA Civ 530
- Roe v Minister of Health [1954] 2 QB 66
- March v Stramare (1991) 171 CLR 506
- Sutherland Shire Council v Heyman (1985) 157 CLR 424
- Overseas Tankship (UK) Ltd v Miller Steamship Co Pty (The Wagon Mound (No 2)) (The Wagon Mound) [1967] 1 AC 617
- Overseas Tankship (UK) Ltd v Morts Dock & Engineering Co Ltd (The Wagon Mound) [1961] AC 388
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Cases citing this case
22 later cases · 14 positive · 6 neutral · 1 caution · 1 negative
Most senior citing decisions:
- URS Corporation Ltd v BDW Trading Ltd [2025] UKSC 21 applied
- Armstead v Royal & Sun Alliance Insurance Company Ltd [2024] UKSC 6 not applied
- Paul and another v Royal Wolverhampton NHS Trust [2024] UKSC 1 applied
- Charles B Lawrence & Associates v Intercommercial Bank Limited (Trinidad and Tobago) [2021] UKPC 30
- Manchester Building Society v Grant Thornton UK LLP [2021] UKSC 20
- Afan Valley Ltd & Ors v Lupton Fawcett LLP [2026] EWCA Civ 2
- Anan Kasei Co Limited & Anor v Neo Chemicals & Oxides (Europe) Limited & Ors [2023] EWCA Civ 11
- Spire Property Development LLP & Anor. v Withers LLP [2022] EWCA Civ 970
- Lorna Armstead v Royal Sun Alliance Insurance Company Limited [2022] EWCA Civ 497
- Rushbond PLC v The JS Design Partnership LLP [2021] EWCA Civ 1889
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