> ## 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.

# observation_vcc_coding

Normalized `Observation.valueCodeableConcept.coding[]` property on the [Observation](https://hl7.org/fhir/R4/observation.html) FHIR resource.

**Primary Keys:**

* observation\_vcc\_coding\_id

**Foreign Keys:**

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

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

| Column                       | Data Type | Description                                                           |
| ---------------------------- | --------- | --------------------------------------------------------------------- |
| observation\_vcc\_coding\_id | varchar   | Unique identifier for the coding row                                  |
| observation\_id              | varchar   | Parent observation                                                    |
| code\_rank†                  | int       | 1-based index of this coding in the valueCodeableConcept.coding array |
| code                         | varchar   | Code value                                                            |
| display                      | varchar   | Human-readable display                                                |
| system                       | varchar   | Code system URI                                                       |

**Related Tables:**

**Parent:**

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