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GET
/
codes
/
{code}
/
changes
Get MedDRA code changelog
curl --request GET \
  --url https://api.meddra.co/codes/{code}/changes
{
  "code": "10029505",
  "versions": {
    "from": "28.0",
    "to": "28.1"
  },
  "snapshots": {
    "from": {
      "exists": true,
      "code": "10029505",
      "term": "Dizziness",
      "level": "SOC",
      "status": "current",
      "primarySocCode": "10029205"
    },
    "to": {
      "exists": true,
      "code": "10029505",
      "term": "Dizziness",
      "level": "SOC",
      "status": "current",
      "primarySocCode": "10029205"
    }
  },
  "differences": [
    "<string>"
  ]
}
Pass against to select the source release (from) and optionally override the base release with the version query parameter (or the X-MedDRA-Version header).
Tip: pair this endpoint with /versions/{toVersionId}/changes to show impact across an entire release before zooming into the concepts that changed.

Headers

​
X-API-Version
string
default:1

Override the default API version. Defaults to 1.

Example:

"1"

​
X-MedDRA-Version
string

Target a specific MedDRA release. Defaults to the latest.

Example:

"28.0"

Path Parameters

​
code
string
required

MedDRA code identifier.

Example:

"10029505"

Query Parameters

​
version
string

Override the MedDRA release for this request.

Example:

"28.0"

​
against
string
required

MedDRA release to compare the code against.

Example:

"28.0"

Response

Change summary between the source and target releases.

​
code
string
required
Example:

"10029505"

​
versions
object
required

Pair of MedDRA releases used for a change comparison.

​
snapshots
object
required
​
differences
string[]
required

Human-readable notes describing the differences.