Author and Publication
Author: Ben Slater, Registered Social Worker, Founder and Managing Director of Nellie Supports
Reviewed by: Kerry Slater, Director of Operations
Last reviewed: 20 July 2026
Citation
1. Department of Health and Social Care (2022) National Framework for NHS Continuing Healthcare and NHS-funded Nursing Care. Available at: https://www.gov.uk/government/publications/national-framework-for-nhs-continuing-healthcare-and-nhs-funded-nursing-care
2. R v North and East Devon Health Authority, ex parte Coughlan [2000] 2 WLR 622.
3. R (Grogan) v Bexley NHS Care Trust and others [2006] EWHC 44 (Admin).
4. Department of Health and Social Care (2022) NHS Continuing Healthcare Decision Support Tool.
Copywright
Copyright © 2026 Nellie Supports Ltd. All rights reserved.
This article is made available for general information, education and professional reference. It may be downloaded, printed and shared for non-commercial purposes, provided that it is reproduced in full, is not altered in any way, and is properly cited as the work of Nellie Supports Ltd. This material must not be edited, adapted, sold, republished, incorporated into commercial products, or used for commercial training, assessment, report-writing or advisory services without prior written permission from Nellie Supports Ltd.
This article does not constitute legal advice, clinical advice or a substitute for a decision-specific professional assessment. Where legislation, government guidance, court forms or external professional materials are referred to, those materials remain subject to their own copyright, licensing and re-use terms.
Abstract
This guide explains the complexity characteristic in NHS Continuing Healthcare decision making. It covers how needs interact, the difficulty of attributing symptoms to a single cause, the skill required to interpret and respond, why a large volume of care is not the same as complexity, examples across the care domains, and how to evidence complexity effectively.
What complexity of need means in a CHC assessment
Complexity is the characteristic most often named without being applied. It is not about how much care is needed. It is about how needs interact with one another, and how difficult that interaction makes them to manage.
What complexity means
Complexity concerns how needs interact and how difficult that interaction makes the care. It captures situations where several conditions pull against each other, where symptoms cannot be attributed confidently to a single cause, or where managing one need makes another harder to manage. It also captures the skill required to interpret what is happening and to adjust care accordingly.
Volume is not complexity
A person may require a great deal of care that is entirely straightforward, each need separate and each response known. That is intensity, not complexity. Conversely a person may need relatively little care that is extremely difficult to get right because their needs interact unpredictably. The distinction is frequently blurred and is worth stating explicitly in a submission.
Interaction is the core
The clearest complexity arises where interventions conflict. Medication for one condition worsens another. Positioning to protect skin increases pain. Encouraging fluid intake raises aspiration risk. Managing distress with medication increases falls risk. Each of these requires a judgement rather than a protocol, and that judgement is the need.
Difficulty of attribution
Complexity also arises where the cause of a change cannot be readily identified. Is the increased confusion an infection, a medication effect, pain that cannot be reported, or progression of the underlying condition? Someone has to work that out, often quickly, and the skill involved in doing so belongs in the assessment.
Examples across the domains
A person with Parkinson's disease whose motor medication precipitates hallucinations. Someone with dementia whose distressed behaviour may be pain they cannot report. A person with both heart failure and renal impairment where fluid management pulls in two directions. In each case the difficulty lies in the interaction, not in any single need.
How to evidence complexity
Describe the interactions explicitly rather than listing conditions. Set out which needs conflict, what judgement is required, who makes it and how often, and what has gone wrong when it was got wrong. Records of multi-team involvement, case conferences and repeated care plan revision all evidence complexity well.
Key takeaway
Complexity is interaction, not volume. Describe which needs conflict, what judgement that requires and who exercises it. Multi-team involvement and repeated care plan revision are strong evidence, and listing diagnoses without describing interaction is not.
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Frequently asked questions
Does having several conditions mean complexity?
Not automatically. Complexity arises where the conditions interact so that managing one makes another harder. Several separate conditions each managed straightforwardly may not be complex at all.
Is a lot of care the same as complexity?
No, that is intensity. Complexity concerns difficulty rather than volume, and a person needing relatively little care can have highly complex needs if those needs interact unpredictably.
What is the clearest example?
Interventions that conflict, such as medication for one condition worsening another, or positioning to protect skin increasing pain. Each requires a judgement rather than a protocol, and that judgement is the need.
Related NHS Continuing Healthcare pages
These links take you to the most relevant Nellie Supports service page and to the supporting guides that explain the surrounding process.
Speak to an independent CHC specialist
Nellie Supports prepares independent needs evidence for NHS Continuing Healthcare assessments, reviews and appeals across England and Wales. Our reports are written by registered social workers on a permanent employed team, with internal peer review before release. Call 0333 987 5118 or send an enquiry and we will talk through where you are in the process.