Guide · Systems

Custom electronic medical record: when it makes sense and what it must guarantee

By Renan MeloOct 9, 20268 min read

A custom electronic medical record (EMR) is a record-keeping system designed for the workflow of a specialty, a network or a specific operation, instead of bending the operation to a generic product. There are good off-the-shelf EMRs, and for many clinics they are enough. Custom comes in when the specialty has its own fields and flows, when the record has to talk in a specific way to scheduling, billing and apps, or when it is part of a health tech's product. It is general guidance on technology and operations (here in Brazilian terms), not legal advice or clinical conduct. For clinics, see the NexUnio Health guide (in Portuguese).

When custom makes sense

An off-the-shelf EMR is the right choice when your operation fits its standard. Custom usually shows up in four situations: a specialty with its own workflow (fields, scales and records the product doesn't cover), a network or operation with a standard to replicate across units, deep integration with scheduling, billing or apps, and a health tech that needs the record as part of its product.

There is also a middle path: keep the EMR in use and build around it, integrated, what is missing (management, an app, a dashboard). It is often the lowest-risk route; see off-the-shelf system or custom software.

What an electronic medical record must guarantee

The record is sensitive, with rules on confidentiality, integrity and retention. In product terms this means role-based access control, an audit trail (who viewed and who changed what, and when), secure authentication, backup and retention per the applicable rule. In Brazil, Law 13,787/2018 covers the digitization and use of computerized systems for keeping and handling records, and the CFM has rules on electronic records and system certification.

Because these rules change and depend on the professional category, treat this section as general guidance: the regulatory scope of your record system should be validated with whoever handles legal and compliance for the operation.

Data protection and sensitive data

The record concentrates sensitive personal data par excellence. Under Brazil's LGPD this requires defined purpose, legal basis, restricted access and security. In system design, apply minimization (collect only what is needed), access segregation and access logging, and make the roles of controller (the clinic or hospital) and operator (whoever builds and maintains the system) clear.

Integration with scheduling, billing and apps

An isolated record becomes one more island. The gain is in connecting it to scheduling (the visit starts from the booking), to billing and insurers (the record feeds the invoice) and to apps (patients see what the clinic releases, field teams record offline and sync). See also native, web or hybrid app and telemedicine app.

To start, map the real care workflow with the people who use it and choose a slice for the first cycle: one visit type, one unit, one set of fields. For budget, see how much it costs to develop an app; for NexUnio's work in the area, the healthcare sector.

Frequently asked questions

When is a custom medical record worth building?

When the specialty has its own workflow, a network must replicate a standard, integration with scheduling and billing is deep, or the record is part of a health tech's product. If the operation fits the standard, off-the-shelf is usually enough.

What must an electronic medical record guarantee?

Role-based access, audit trail, secure authentication, backup and retention per the applicable rule. In Brazil, Law 13,787/2018 and CFM rules are starting points. This answer is general guidance, not legal advice.

Can I keep my current record system and build only what's missing?

Yes. It is often the lowest-risk path: build, integrated with the existing record, the management, app or dashboard the off-the-shelf tool doesn't cover.

Does NexUnio define clinical conduct in the record?

No. We work on the technology and operations layer of the record. Clinical content always belongs to the health professional.

Continue exploring
Healthcare sectorAppsOff-the-shelf or customTelemedicine app
Renan Melo
Renan MeloCo-founder & CTO at NexUnio

16 years building custom software; leads NexUnio's AI engineering. Learn about NexUnio · LinkedIn

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