Electronic Signature in Healthcare: GDPR & HDS

Introduction: Digital transformation of healthcare facilities

The healthcare sector is one of the most demanding environments in terms of data security and regulatory compliance. By 2026, more than 73% of French healthcare facilities report having initiated their document dematerialization (source: ANS 2025 report). However, electronic signature in the healthcare sector remains underutilized, hindered by legitimate questions about GDPR compliance, health data hosting (HDS), and eIDAS Regulation requirements. This article provides you with a comprehensive framework to understand the issues, choose the right signature level, and deploy a sovereign solution adapted to healthcare specificities.

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1. Why electronic signature has become essential in healthcare

1.1 Massive and constraining document volume

A French university hospital produces an average of 4 to 6 million documents per year: prescriptions, informed consents, employment contracts, inter-facility agreements, admission forms, medical expertise reports. Handwritten signatures generate average processing times of 5 to 12 business days for documents requiring multiple successive validations.

Medical electronic signature reduces these delays to just a few hours, while offering superior legal traceability compared to paper. For territorial hospital groups (GHT), multi-site signature flows make dematerialization no longer optional but strategic.

1.2 Priority documents covered

Priority use cases in the healthcare sector include:

• Patient informed consent: mandatory before any invasive procedure (Article L.1111-4 of the Public Health Code), it must be dated, identified and kept on file.
• Professional healthcare contracts and amendments: self-employed doctors, nurses, temporary staff; signature delays directly impact scheduling.
• Partnership agreements and clinical research protocols: subject to multi-layer validation requirements (sponsor, investigator, CNIL, Research Ethics Committee).
• Electronic prescriptions and digital prescriptions: governed by the Mon Espace Santé program and ANS standards.
• Hospital public procurement: subject to the Public Procurement Code and qualified signature requirements.

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2. GDPR and health data: specific obligations to master

2.1 Health data as a special category under GDPR

The General Data Protection Regulation (GDPR, n°2016/679) classifies health data in the category of sensitive data (Article 9). Their processing is in principle prohibited, except for explicit exceptions: explicit consent from the data subject, necessity for medical care, or public interest in healthcare.

In the context of electronic signature, any solution that collects, transmits or stores data allowing identification of a patient or healthcare professional in a medical context processes health data in the broad sense. This requires:

• The appointment of a Data Protection Officer (DPO) mandatory for healthcare facilities (Article 37 GDPR).
• The implementation of a Data Protection Impact Assessment (DPIA) whenever the processing is likely to present a high risk.
• Compliance with the data minimization principle: collect only information strictly necessary for the signing act.
• Implementation of appropriate technical and organizational measures: end-to-end encryption, pseudonymization, access controls.

2.2 Data location: a sovereignty issue

Article 44 of GDPR strictly governs data transfers outside the European Union. For healthcare facilities, choosing an electronic signature solution hosted in the United States or in a third country without an adequacy decision exposes you to major legal risks: CNIL penalties potentially reaching 4% of global annual turnover or 20 million euros.

The CNIL explicitly recommends using service providers hosting their infrastructure within the European Union, ideally in France for the most sensitive health data.

2.3 Health Data Hosting (HDS): mandatory certification

Since the law of January 26, 2016 modernizing the healthcare system (codified in Article L.1111-8 of the Public Health Code), health data hosting must be entrusted to an HDS-certified provider (Health Data Hosting provider) by ANS (Digital Health Agency).

This certification, based on the ISO 27001 standard extended to HDS specificities, covers six activities including infrastructure provision, IT services management and systems hosting. An electronic signature solution used in a medical context must therefore be hosted on HDS-certified infrastructure or rely on a certified subcontractor.

Certyneo hosts all its data on cloud infrastructure certified HDS and ISO 27001 located in France, in accordance with ANS requirements. Visit our dedicated electronic signature in healthcare page to discover our technical architecture.

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3. eIDAS, signature levels and strategic choice for healthcare

3.1 Three signature levels under eIDAS

The European Regulation eIDAS (n°910/2014) and its evolution eIDAS 2.0 (EU Regulation 2024/1183) define three levels of electronic signature, whose choice determines probative value and technical requirements:

| Level | Description | Typical medical use | |---|---|---| | SES (Simple) | Electronic data attached to other data | Acknowledgments of receipt, internal forms | | SEA (Advanced) | Linked to signer, detects any modification | Consents, HR contracts, agreements | | SEQ (Qualified) | Highest level, qualified device, qualified trust provider | Public procurement, notarial acts, clinical research |

For most common medical acts (informed consents, employment contracts, digital prescriptions), advanced electronic signature (SEA) offers the best balance between security level and ease of use. Hospital procurement and certain clinical research protocols require qualified signature (SEQ).

For more on regulatory levels, consult our comprehensive eIDAS regulation guide.

3.2 Digital identity of healthcare professionals: CPS and Pro Santé Connect

In France, healthcare professionals have the Healthcare Professional Card (CPS), issued by ANS, which is a recognized means of electronic identification. The Pro Santé Connect solution, healthcare equivalent of FranceConnect, enables strong authentication of professionals.

An electronic signature solution intended for the healthcare sector should ideally be compatible with these sectoral digital identity devices to achieve the level of advanced or even qualified signature required by certain documentary flows.

3.3 ETSI compliance and qualified trust providers

Qualified trust service providers (QTSP) listed on the European Trust List (TSL) guarantee that their services comply with ETSI standards EN 319 132 (XAdES), EN 319 122 (CAdES) and EN 319 162 (ASiC). In France, ANSSI publishes and maintains this national trust list.

For healthcare facilities, relying on a SaaS publisher that itself relies on a referenced QTSP is an essential guarantee of the legal value of signed documents.

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4. Deploying electronic signature in a healthcare facility: practical guide

4.1 Map document flows and identify priorities

Before any deployment, mapping of document flows is essential. It must identify for each document type: the number of signers, the required signature level, data sensitivity and time constraints.

A medium-sized GHT will prioritize patient consents (high volume, immediate gains), then HR contracts (impact on attractiveness), and finally inter-facility agreements (multi-signer complexity).

4.2 Integration into Hospital Information System (HIS)

Medical electronic signature is only effective if it integrates natively into existing tools: EHR (Electronic Health Record), HR planning software, document management tools (ECM). Modern solutions offer REST APIs and native connectors for major HIS on the market (Mediboard, Hospital Manager, etc.).

Certyneo provides a documented API allowing integration in less than 48 hours in most hospital environments. You can estimate the return on investment of this deployment using our dedicated ROI calculator.

4.3 Train teams and manage change

The human factor is often the main obstacle to dematerialization in healthcare. Healthcare professionals face extreme time constraints and have low tolerance for technological friction. A signature solution must therefore be:

• Accessible on mobile (signing while moving, between consultations)
• Intuitive in less than 3 clicks for the signer
• Compatible with existing approval workflows (department head validation, management)

A short training program (2 hours maximum) combined with video tutorials integrated into the tool enables adoption rates exceeding 85% within the first 30 days.

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5. Certyneo: electronic signature solution designed for healthcare

5.1 Sovereign architecture and certifications

Certyneo was designed from the outset to meet the requirements of highly regulated sectors. Our infrastructure relies on European datacenters (IONOS SE, Germany). We are actively pursuing certifications: HDS (in progress), ISO 27001 (planned Q4 2026), SOC 2 Type II (planned 2027). All data is encrypted in transit (TLS 1.3) and at rest (AES-256), with a dedicated encryption key policy per customer.

Our service relies on qualified trust service providers listed by ANSSI to guarantee maximum legal value of signatures produced. Qualified timestamps and signature certificates comply with applicable ETSI standards.

5.2 Features specific to the healthcare sector

• Multi-party signature workflows: management of processes with distinct roles (patient, doctor, management, legal)
• Medical document templates compliant with HAS recommendations (consents, protocols)
• Complete audit trail kept for minimum 10 years (legal retention period for medical records)
• Pro Santé Connect compatibility for strong authentication of healthcare professionals
• Available DPO to support your impact assessment (DPIA)

5.3 Migration from non-HDS compliant solutions

Many healthcare facilities still use consumer electronic signature solutions (DocuSign, Adobe Sign) whose hosting is not HDS certified. This situation exposes them to increasing non-compliance risk, particularly following CNIL's reinforced controls since 2024.

Our dedicated migration program allows you to transfer all historical documents and workflows in less than 5 business days. Discover our migration offer to Certyneo designed for facilities constrained by regulatory timelines.

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Conclusion: HDS-GDPR compliance, an investment, not a constraint

Electronic signature in healthcare is no longer optional. Between increasing regulatory obligations (GDPR, HDS, eIDAS 2.0, Mon Espace Santé program), pressure on administrative timelines and cybersecurity issues (healthcare is the most targeted sector by cyberattacks in France in 2025 according to ANSSI), facilities that have not yet deployed a sovereign and certified solution are taking major legal and operational risks.

Certyneo offers the most comprehensive solution on the French market to simultaneously meet HDS-GDPR-eIDAS compliance requirements and operational needs of medical and administrative teams.

Ready to secure your medical document flows? Discover Certyneo for healthcare or consult our pricing adapted to healthcare facilities to start your free evaluation.

Legal framework applicable to medical electronic signature

Civil Code and probative value

Article 1366 of the Civil Code establishes the principle of equivalence between electronic signature and handwritten signature: "Electronic writing has the same probative force as writing on paper, provided that the person from whom it emanates can be duly identified and that it is established and kept under conditions to ensure its integrity." Article 1367 specifies that "the reliability of this process is presumed, unless proven otherwise, when the electronic signature is created, the signer's identity is ensured and the integrity of the act is guaranteed, under conditions fixed by a decree from the Council of State." This decree (n°2017-1416 of September 28, 2017) explicitly refers to eIDAS requirements for qualified signatures.

eIDAS Regulation and eIDAS 2.0

The EU Regulation n°910/2014 (eIDAS), complemented by EU Regulation 2024/1183 (eIDAS 2.0) which entered into progressive application from March 2024, establishes the European legal framework for trust services. It distinguishes three levels of signature (simple, advanced, qualified) whose technical requirements are specified by ETSI EN 319 132 (XAdES), ETSI EN 319 122 (CAdES) and ETSI EN 319 401 (general requirements for TSP) standards. Qualified signatures have equivalent value to a handwritten signature in all Member States.

GDPR and health data

The EU Regulation n°2016/679 (GDPR), Articles 9, 35, 37 and 44, impose specific obligations for processing health data: explicit consent or alternative legal basis, mandatory DPIA implementation for high-risk processing, DPO appointment, and prohibition of transfers to third countries without adequate safeguards. Violations can expose the facility to fines up to 20 million euros or 4% of global annual turnover.

Health Data Hosting (HDS)

Article L.1111-8 of the Public Health Code, from the law n°2016-41 of January 26, 2016, requires HDS certification for any provider hosting personal health data. The HDS certification framework, published by ANS and based on ISO 27001:2022, covers six hosting activities. Any electronic signature solution editor used in a medical context must either have HDS certification itself or outsource hosting to a certified provider with a DPA (Data Processing Agreement) compliant with Article 28 of GDPR.

NIS2 and cybersecurity of healthcare facilities

The NIS2 Directive (EU 2022/2555), transposed into French law by law n°2024-449, classifies hospitals and healthcare facilities as essential entities (EE), subjecting them to the most stringent obligations in terms of cyber risk management, incident reporting (72 hours) and regular audits. The electronic signature solution is part of the security scope to be audited.

Concrete use cases: medical electronic signature in action

Use case 1: CHU Aliénor – Dematerialization of informed consents

CHU Aliénor (3,200 beds, 6 sites), facing a rate of lost or incomplete informed consent forms of 8%, deployed Certyneo to dematerialize 100% of its informed consents in surgery and oncology. The patient receives an SMS or email link before admission, signs from their smartphone in less than 2 minutes, and the certified document is automatically filed in their patient record in the EHR.

Results after 6 months: Rate of incomplete consents reduced from 8% to 0.3%, average collection time reduced from 48 hours to 4 hours, savings of 127,000 A4 sheets per year, GDPR compliance assured with qualified timestamp and audit trail kept 10 years.

Use case 2: MEDIPRIVÉ Group – Contracts for liberal practitioners

MEDIPRIVÉ, a group of 14 private clinics in the PACA region, managed its collaboration contracts and amendments with its 340 liberal practitioners through paper exchanges and PDF emails, without certified probative value. The average time to sign an amendment was 9 business days, penalizing operating schedules.

After deploying Certyneo with API integration into their HR software, amendments are now signed in advanced signature in less than 6 hours on average. The time savings represent the equivalent of 1.8 FTE administrative resources per year, reallocated to higher-value activities. The group also eliminated any risk related to data transfers outside the EU (the former provider hosted in Ireland with outsourcing to the United States).

Use case 3: BIOPHARMA NORD Research Institute – Clinical research protocols

BIOPHARMA NORD Institute manages annually 23 clinical research protocols requiring signature from at least 6 parties (sponsor, principal investigator, co-investigators, Research Ethics Committee, ANSM, facility). Each signature had to reach the qualified level (SEQ) to meet ICH E6 requirements and ANSM recommendations.

Certyneo was deployed with integration of qualified certificates via a QTSP referenced by ANSSI, enabling sequential or parallel signature workflows depending on document type. The average time to obtain all signatures for a protocol decreased from 34 days to 8 days, significantly accelerating trial initiation. Enhanced traceability also facilitated audits by competent authorities.

Cadre juridique applicable à la signature électronique médicale

Code civil et valeur probante

L'article 1366 du Code civil pose le principe d'équivalence entre la signature électronique et la signature manuscrite : « L'écrit électronique a la même force probante que l'écrit sur support papier, sous réserve que puisse être dûment identifiée la personne dont il émane et qu'il soit établi et conservé dans des conditions de nature à en garantir l'intégrité. » L'article 1367 précise que « la fiabilité de ce procédé est présumée, jusqu'à preuve contraire, lorsque la signature électronique est créée, l'identité du signataire assurée et l'intégrité de l'acte garanti, dans des conditions fixées par décret en Conseil d'État. » Ce décret (n°2017-1416 du 28 septembre 2017) renvoie explicitement aux exigences du règlement eIDAS pour les signatures qualifiées.

Règlement eIDAS et eIDAS 2.0

Le Règlement UE n°910/2014 (eIDAS), complété par le Règlement UE 2024/1183 (eIDAS 2.0) entré en application progressive depuis mars 2024, établit le cadre juridique européen des services de confiance. Il distingue trois niveaux de signature (simple, avancée, qualifiée) dont les exigences techniques sont précisées par les normes ETSI EN 319 132 (XAdES), ETSI EN 319 122 (CAdES) et ETSI EN 319 401 (exigences générales des PSC). Les signatures qualifiées ont valeur équivalente à une signature manuscrite dans tous les États membres.

RGPD et données de santé

Le Règlement UE n°2016/679 (RGPD), articles 9, 35, 37 et 44, impose des obligations spécifiques pour le traitement des données de santé : consentement explicite ou base légale alternative, réalisation d'une DPIA obligatoire pour les traitements à risque élevé, désignation d'un DPO, et interdiction de transfert vers des pays tiers sans garanties adéquates. Les violations peuvent exposer l'établissement à des amendes allant jusqu'à 20 millions d'euros ou 4 % du chiffre d'affaires annuel mondial.

Hébergement des Données de Santé (HDS)

L'article L.1111-8 du Code de la santé publique, issu de la loi n°2016-41 du 26 janvier 2016, impose la certification HDS pour tout hébergeur de données de santé à caractère personnel. Le référentiel de certification HDS, publié par l'ANS et basé sur ISO 27001:2022, couvre six activités d'hébergement. Tout éditeur de solution de signature électronique utilisée dans un contexte médical doit soit disposer lui-même de la certification HDS, soit sous-traiter l'hébergement à un prestataire certifié avec un contrat DPA (Data Processing Agreement) conforme à l'article 28 du RGPD.

NIS2 et cybersécurité des établissements de santé

La Directive NIS2 (UE 2022/2555), transposée en droit français par la loi n°2024-449, classe les hôpitaux et établissements de santé comme entités essentielles (EE), les soumettant aux obligations les plus contraignantes en matière de gestion des risques cyber, notification des incidents (72 heures) et audit régulier. La solution de signature électronique fait partie intégrante du périmètre de sécurité à auditer.

Cas d'usage concrets : la signature électronique médicale en action

Cas d'usage 1 : CHU Aliénor – Dématérialisation des consentements éclairés

Le CHU Aliénor (3 200 lits, 6 sites), confronté à un taux de formulaires de consentement perdus ou incomplets de 8 %, a déployé Certyneo pour dématérialiser 100 % de ses consentements éclairés en chirurgie et en oncologie. Le patient reçoit un lien SMS ou email avant son admission, signe depuis son smartphone en moins de 2 minutes, et le document certifié est automatiquement versé dans son dossier patient sur le DPI.

Résultats après 6 mois : Taux de consentements incomplets réduit de 8 % à 0,3 %, délai moyen de collecte ramené de 48 heures à 4 heures, économie de 127 000 feuilles A4 par an, conformité RGPD assurée avec horodatage qualifié et audit trail conservé 10 ans.

Cas d'usage 2 : Groupe MEDIPRIVÉ – Contrats des praticiens libéraux

MEDIPRIVÉ, groupe de 14 cliniques privées en région PACA, gérait ses contrats de collaboration et avenants avec ses 340 praticiens libéraux via des échanges papier et PDF par email, sans valeur probante certifiée. La durée moyenne de signature d'un avenant atteignait 9 jours ouvrés, pénalisant les plannings opératoires.

Après déploiement de Certyneo avec intégration API dans leur logiciel RH, les avenants sont désormais signés en signature avancée en moins de 6 heures en moyenne. Le gain de temps représente l'équivalent de 1,8 ETP administratif par an, réalloués à des missions à valeur ajoutée. Le groupe a également éliminé tout risque lié aux transferts de données hors UE (l'ancien prestataire hébergeait en Irlande avec sous-traitance aux États-Unis).

Cas d'usage 3 : Institut de Recherche BIOPHARMA NORD – Protocoles de recherche clinique

L'Institut BIOPHARMA NORD gère annuellement 23 protocoles de recherche clinique nécessitant la signature d'au moins 6 parties (promoteur, investigateur principal, co-investigateurs, CPP, ANSM, établissement). Chaque signature devait atteindre le niveau qualifié (SEQ) pour répondre aux exigences ICH E6 et aux recommandations de l'ANSM.

Certyneo a été déployé avec une intégration des certificats qualifiés via un QTSP référencé ANSSI, permettant des workflows de signature séquentiels ou parallèles selon le type de document. Le délai moyen d'obtention de l'ensemble des signatures d'un protocole est passé de 34 jours à 8 jours, accélérant significativement le démarrage des essais. La traçabilité renforcée a également facilité les audits des autorités compétentes.