---
title: "knowledge_base_reference"
description: "A citation of a digital resource used as an source of authoritative or expert information, and/or to items contained within the resource."
---

A citation of a digital resource used as an source of authoritative or expert information, and/or to items contained within the resource.

**Purpose.** To record a reference to a knowledge base, and/or to items contained within the knowledge base, in relation to specific health record information which uses that knowledge base.

## Source

| Model | Leg | Role |
|---|---|---|
| `openEHR-EHR-CLUSTER.knowledge_base_reference.v1` | openEHR | defines this table |

## Columns

| Column | Type | Null | Description | Source |
|---|---|---|---|---|
| `id` | `uuid primary key` | no | Primary key. | — |
| `knowledge_base_name` | `text` | yes | Knowledge base name | `/items[at0001]` |
| `knowledge_base_version` | `text` | yes | Knowledge base version | `/items[at0006]` |
| `knowledge_base_uri` | `text` | yes | Knowledge base URI | `/items[at0008]` |
| `item_name` | `text` | yes | Item name | `/items[at0005]` |
| `item_version` | `text` | yes | Item version | `/items[at0002]` |
| `item_publication` | `timestamptz` | yes | Item publication | `/items[at0007]` |
| `item_uri` | `text` | yes | Item URI | `/items[at0003]` |
| `comment` | `text` | yes | Comment | `/items[at0004]` |

## Referenced by

- [`clinical_pathway_order_knowledge_base_reference`](/docs/tables/clinical_pathway_order_knowledge_base_reference) via `knowledge_base_reference_id`
- [`spirometry_result_predicted_results_source`](/docs/tables/spirometry_result_predicted_results_source) via `knowledge_base_reference_id`