diff --git a/zoo-api.yaml b/zoo-api.yaml
index a7018c8..7a27a2c 100644
--- a/zoo-api.yaml
+++ b/zoo-api.yaml
@@ -66,6 +66,49 @@ paths:
                     items:
                       type: string
           
+  /patient/dossier:
+    get:
+      tags:
+        - patient
+      summary: Get detailed medical dossier info for the stated patient
+      parameters:
+        - name: bsn
+          in: query
+          description: |-
+            The SSN (dutch: _BSN_) of a patient to look up. May only contain digits, cannot contain more than 9 digits, and cannot be 0.
+            Either `bsn` or `pu` must be present.
+          schema:
+            type: string
+            example: 123456789
+        - name: pu
+          in: query
+          description: |-
+            The Patient unique ID, as e.g. reported by `/patient/base`'s `pat_unid` response.
+            Either `bsn` or `pu` must be present.
+          schema:
+            type: string
+            example: ""
+        - name: q
+          in: query
+          description: |-
+            A space, comma, or bar-separated list of dossier aspects to query. If omitted, everything is returned.
+            The keys match the keys in the JSON structure that is returned on a success, such as `medication` or `measurements`.
+          schema:
+            type: string
+            example: "medication,measurements"
+      responses:
+        '200':
+          description: Detailed medical dossier information for the patient is returned.
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  tbd:
+                    description: |-
+                      Work in progress
+                    type: string
+                    example: Work in progress
   /patient/base:
     get:
       tags: