Framework sorts clinical-document identifiers into 9 categories before AI medical record review in Colombia

Zenodo 2026 · 1 min read
Sensitive-variable categories
9
From direct identifiers to rare clinical events, free-text social context and AI-generated output
Control areas in the implementation matrix
10
Authorization, preprocessing, detection, transformation, logs, failure mode, human sampling and more
Artifacts kept separate
4
Original processing copies, processed documents, mapping information and logs

Arkangel AI whitepaper: a 9-category taxonomy and 10-area control matrix for de-identifying clinical documents before AI review.

This whitepaper proposes a practical framework for de-identifying clinical documents before AI-enabled medical record review in Colombia, where extraction, coding, audit and clinical search often need the full document. It is a non-empirical framework built from a narrative selection of public regulatory guidance and published literature, plus a fictitious clinical-document scenario; no patient records were collected or analyzed. Its taxonomy distinguishes 9 categories of sensitive content: direct identifiers, encounter identifiers, dates and times, institutions and locations, health professionals and relatives, rare clinical events, free-text social context, operational metadata and AI-generated output.

The proposed workflow keeps original processing copies, processed documents, mapping information and logs apart, with checks before AI review and after output generation, and a qualitative matrix organizes the controls into 10 areas for implementation planning. The authors stress that de-identification reduces identifying content but does not certify anonymity, and that Colombian law allows research use of sensitive data only with measures to suppress identity, without defining what suffices; no clinical anonymization standard was found among the sources examined. No re-identification risk, utility or detection performance was measured, so the framework needs evaluation under an authorized protocol. It is a whitepaper, not peer reviewed.

Results at a glance

The headline numbers from the paper, in plain language.

MetricValueWhat it means
Sensitive-variable categories9From direct identifiers to rare clinical events, free-text social context and AI-generated output
Control areas in the implementation matrix10Authorization, preprocessing, detection, transformation, logs, failure mode, human sampling and more
Artifacts kept separate4Original processing copies, processed documents, mapping information and logs

How to cite

Katherine Monsalve, Natalia Castaño-Villegas, Jose Zea, Laura Velásquez. A practical framework for de-identifying clinical documents before AI-enabled medical record review: a Colombian proposal. Zenodo. 2026. https://doi.org/10.5281/zenodo.22919976

@article{monsalve2026practical,
  title     = {{A practical framework for de-identifying clinical documents before AI-enabled medical record review: a Colombian proposal}},
  author    = {Katherine Monsalve and Natalia Castaño-Villegas and Jose Zea and Laura Velásquez},
  journal   = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.22919976},
  url       = {https://doi.org/10.5281/zenodo.22919976}
}

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