Modernising the Child Health Information System is about making sure services can see children clearly enough to provide the care and support they need. Within this lies a big technical challenge. When information sits across disconnected systems, children can become harder to track, harder to support and easier to miss. 

As the Technology Director for Health at Hippo, I have seen the challenges that need to be addressed and the potential architectures across health and education that will help resolve them. In this blog, I’ll examine why this visibility gap exists, how current policy supports a more joined-up approach and why a real-time population register matters for services wanting to make their processes around prevention, continuity and early intervention air tight.

The challenge with siloed child health data

Parents, midwives and health visitors carry out a wide range of screenings and developmental checks in a child’s early years. The information from those interactions often sits across separate local systems or, in some cases, on paper. Without a clear way of bringing that information together, services struggle to build a complete picture of a child’s health.

The Healthy Children – Transforming Child Health Information framework highlights the importance of population management across a national cohort, so that no child is denied access to preventative services. Where that joined-up view does not exist, gaps begin to appear.

  • Children can miss immunisations or developmental checks when they move between regions and their records do not move with them in a usable way.
  • Safeguarding interventions can be delayed when information is not visible to the right people at the right time.
  • Frontline staff spend time reconciling records manually, rather than focusing on care.

A real time population register would address this by creating a continuous, shared view of a child’s health journey. It would not remove complexity, but it would make that complexity more manageable and more visible.

Policy context: Best Start in Life and the NHS 10 Year Health Plan

The direction of travel is already clear in government policy. Strategies such as Best Start in Life and the NHS 10 Year Health Plan both point toward more integrated, preventative and digitally enabled care.

Best Start in Life sets out the introduction of a Best Start digital service within the NHS app’s My Children section. This is intended to give families access to trusted guidance and local services, while supporting three broader shifts: from hospital to community, from analogue to digital and from sickness to prevention.

The NHS 10 Year Health Plan reinforces the same direction. It focuses on reducing administrative burden, improving access to services and making interactions as straightforward as those people experience in other parts of their digital lives. It also emphasises prevention, rather than relying on intervention once problems have escalated.

Together, these policies create both a mandate and a level of urgency. They set out what good looks like, but delivery depends on whether underlying systems can support that vision in practice.

Building an integrated population register: CHIS and data interoperability

To support this shift, CHIS needs to move beyond its current role and act as a population register that brings together children’s health data across services. This is not a replacement to services like the PDS (Personal Demographics Service), that would remain as the central index for demographic information and NHS numbers.

  • Failsafe population management would ensure that every child is invited to the right preventative programmes and that clinicians are prompted when interventions are due.
  • A core record dataset would provide a shared source of truth for both parents and professionals.
  • Digitising the Personal Child Health Record would create a structured set of events that services can respond to.

Delivering this requires more than a single system. It depends on data interoperability and a model that allows services to share and respond to information in real time. An event driven approach, where updates trigger actions across connected systems, would allow services to respond as a child’s circumstances change.

At the same time, the experience of using these services matters. Whether someone is a parent managing appointments or a professional working across multiple systems, the design needs to reduce effort rather than add to it. Clear steps, simple flows and the ability to pause and return to a task all help make complex processes more manageable.

Empowering parents through digital child health: the digital front door

The Best Start digital service points toward a more connected experience for families, linking a population register to the NHS app.

For parents and carers, this creates a single place to manage appointments, receive reminders and access health records. In practice, that could include:

  • A single portal for appointments, reminders and health records, reducing the need to remember multiple logins.
  • Proxy access so carers can manage dependants’ records and receive notifications when vaccinations or screenings are due.
  • Upfront checklists of required documents or vaccinations, helping families prepare for appointments.
  • Self service features that let families update contact details or raise concerns without waiting for an appointment.

These features reduce friction, help people prepare and make it easier to stay engaged with a child’s care.

These changes are not just about convenience. They support a shift toward preventative care by making it easier for families to take action at the right time.

Overcoming technical barriers in legacy systems

Moving from the current state to a real-time population register involves addressing a number of long-standing challenges:

Challenge Impact Approach
Fragmented data standards Inconsistent data fields across regions make it harder to share and interpret information consistently. Adopt national schemas and open APIs to support more consistent data exchange.
Outdated architectures Existing systems often rely on manual notifications and paper based workflows. Move toward an event-driven, publish-and-subscribe model that supports real time updates.
Privacy and consent Data sharing needs to be lawful, proportionate and trusted. Implement role based access, consent frameworks and consistent security standards.
Data quality Duplicate, confused or outdated records can undermine confidence in the system. De-duplicate historical data and validate inputs at the point of capture. Reduce manual data entry where possible.
Cognitive burden Complex interfaces increase mental effort for both staff and parents. Use simple flows, clear progress indicators and save and resume functionality to make tasks more manageable.

Addressing these issues means adopting shared data standards, moving toward more responsive system architectures and designing services that are clear and manageable to use. It also requires ongoing attention to governance, data quality and the realities of how services operate day to day.

What this kind of delivery requires

Building a real time population register is not just a matter of connecting systems. It means designing something that works across services, supports the people using it and holds up in the complexity of live delivery.

That requires clear service design, strong data foundations and an understanding of how people move through health systems in practice. For parents and caregivers, that may mean simpler journeys, clearer prompts and fewer points where they have to repeat information or work out what to do next. For professionals, it means having the right information available at the right time, without relying on manual workarounds.

It also means working across organisational boundaries. Different parts of the system hold different information and operate under different constraints. Any meaningful change has to take that into account, rather than assuming a single, unified model.

Done well, this creates the conditions for better preventative care, earlier intervention and more consistent support across a child’s journey.

Closing the visibility gap

If services cannot see children’s data clearly, they cannot support them consistently. That is the underlying issue behind fragmented child health data. Gaps in visibility do not just create inefficiency. They create risk, delay and missed opportunities for early intervention.

Modernising CHIS into a real time population register would help address this by creating a more connected view of children’s health, improving continuity across services and supporting preventative care in practice. It aligns with the direction already set by policy, but requires focused delivery to make it real.

That means improving interoperability, reducing reliance on outdated processes and building systems that are usable, trusted and able to support people across organisational boundaries.

Ultimately, it means that children will no longer fall through the cracks of public services and will receive the best possible care throughout their lives.