Death-certificate de-identification removes the decedent, informant, and certifier identifiers under UK GDPR Art. 9 and DPA 2018. anonym.plus runs locally and keeps the cause-of-death chain and broad demographics for mortality work.
When this applies
Mortality datasets drive public-health research. But the file carries the full identity, the informant (often a relative), and the signing doctor. All must go before you share it.
How anonym.plus handles it
- Load the file into anonym.plus on your device.
- It finds decedent, informant, and certifier identifiers.
- Exact dates and places get flagged; the cause text stays.
- Swap or black out the confirmed identifiers.
- Save the clean file on your device.
What you need to provide
- The certificate (PDF, scan, or registry export).
- A date and place broaden option for UK GDPR compliance.
- An operator to suit the later use.
Patient data entity types detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Names | PERSON | decedent name → [NAME] |
| Relatives | PERSON | informant (spouse) → [INFORMANT] |
| Names | PERSON | signing doctor → [CERTIFIER] |
| Dates | DATE_TIME | date → [DATE] |
| Location | LOCATION | place → [PLACE] |
| National Insurance | UK_NINO | QQ 12 34 56 C → [ID] |
Compliance achieved
- Supports UK GDPR Art. 9 & DPA 2018 for mortality files.
- Strips decedent, informant, and certifier identifiers together.
- Keeps the cause-of-death chain for public-health work.
Anonymise death certificates offline — see plans & start free →
Limitations & cautions
UK GDPR and common law can protect a decedent’s data even after death in some contexts. Place and exact date are strong clues in mortality data — make them broad. A rare cause plus a place can re-identify after direct identifiers go.
Frequently asked questions
Is a deceased person’s data still protected?
UK GDPR does not cover deceased persons directly, but common law and DPA 2018 obligations may still apply. NHS guidance recommends treating the record with the same care. De-identification is still good practice before reuse.
Are informant and certifier details removed too?
Yes. The informant (often a relative) and the signing doctor are identifiers and are flagged together.
Can the cause chain stay?
Yes. The cause chain stays for analysis. Only identifiers go, though a rare cause needs extra care.