---
title: "Customer Interface Requirements: Medication"
canonical: "https://wiki.patientsknowbest.com/space/api/5002657882/Customer%20Interface%20Requirements%3A%20Medication"
format: markdown
---
### Overview

Providing information about the customer interface requirements for the merged resource type Medication

### Resource specific requirements

- All Medication resources must contain at least one Coding element in the `code` element of the resource. As with all Codings, this must contain a system and value. Example:

```
"code": {
    "coding": [
      {
        "code": "4377611000001107",
        "system": "http://snomed.info/sct",
        "display": "Acetazolamide 500mg powder for solution for injection vials "
      }
    ]
  }
```

- Adding this code to a Medication resource is an assertion that you are **guaranteeing** the nature of the Medication, and such codes should be treated as immutable. There is no automatic pathway which permits the removal or subsequent amendment of an code once it has been added to a Medication; please contact PKB for further details as to the manual corrective pathway in such a case.
- A single Medication resource must not have more than one `code#coding` element with the same system, e.g. multiple SNOMED CT codes. Codings from different schemes representing the same medication are acceptable.