> ## Documentation Index
> Fetch the complete documentation index at: https://docs.encoreos.io/llms.txt
> Use this file to discover all available pages before exploring further.

# PHI Classifications

> View, classify, and scan platform data fields for PHI, PII, SUD, and other sensitivity levels.

Compliance administrators can manage PHI classifications at `/settings/compliance/classifications`. This route requires permission `pf.compliance.phi.classify` and renders `PhiClassificationsPage` from `src/platform/compliance/pages/PhiClassificationsPage.tsx`.

## Overview

The PHI Classifications page lists all data fields classified by sensitivity level. Classification levels are `PHI`, `PII`, `SUD`, `PUBLIC`, and `UNKNOWN`. Fields are fetched via `usePhiClassifications()`. Users with the `pf.compliance.phi.classify` permission can edit an individual field's classification via a dialog using `useUpdatePhiClassification()`. A scan can be triggered via `useTriggerPhiScan()` to automatically re-classify fields. The page includes search by field name and a filter dropdown by classification level. Compliance theming is applied via `useComplianceTheme()`. The `ContrastFallbackIndicator` shows when a contrast fallback is in use.

## Who it's for

Requires permission: `pf.compliance.phi.classify`.

## Before you start

* Your account must have the `pf.compliance.phi.classify` permission.

## Steps

1. Navigate to **Settings > Compliance > Classifications** (`/settings/compliance/classifications`).
2. Use the search field to find a specific field.
3. Filter by classification level using the dropdown.
4. Select the edit icon on a field row to update its classification level.
5. Use the **Scan** button to trigger an automated re-classification scan.

## Key concepts

**Classification levels** — `PHI` and `PII` are personal health and personal identifiable information. `SUD` covers substance use disorder data with additional 42 CFR Part 2 protections. `PUBLIC` is non-sensitive. `UNKNOWN` indicates unclassified fields pending review.

**PHI scan** — An automated process that inspects field definitions and sample data patterns to suggest classification levels.

## Related

<Columns cols={2}>
  <Card title="Platform Foundation" icon="layer-group" href="/pf/overview">
    Platform Foundation overview.
  </Card>

  <Card title="Governance & parity" icon="scale-balanced" href="/governance/index" />
</Columns>

<Note>
  This page documents shipped product behavior. It is not medical, legal, or
  billing advice. Verify against your organization's policies and applicable
  regulations before using it for clinical, compliance, or billing decisions.
  Protected health information (PHI) shown in the product is governed by your
  tenant's access controls and is never exposed in this documentation.
</Note>

<Accordion title="Documentation sources">
  * src/routes/platform.tsx
  * src/platform/compliance/pages/PhiClassificationsPage.tsx
</Accordion>