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

# device_type_coding

Normalized `Device.type.coding[]` property on the [Device](https://hl7.org/fhir/R4/device.html) FHIR resource.

**Primary Keys:**

* device\_type\_coding\_id

**Foreign Keys:**

* device\_id - links to the [device](/medical-api/handling-data/schema-v100/device/base) table

<div style={{textAlign: 'right'}}><sub>† Metriport Platform added</sub></div>

| Column | Data Type | Description |
| - | - | - |
| device\_type\_coding\_id | varchar | Unique identifier for the coding row |
| device\_id | varchar | FK to the parent device record |
| code\_rank† | int | 1-based position of this coding in the source array |
| code | varchar | Code value |
| display | varchar | Human-readable display text |
| system | varchar | Coding system URI |

**Related Tables:**

**Parent:**

* [device](/medical-api/handling-data/schema-v100/device/base)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.