From f8d88f1325976cefcbf3ad906845ecd0d4754725 Mon Sep 17 00:00:00 2001
From: gerrycampion <85252124+gerrycampion@users.noreply.github.com>
Date: Mon, 2 Oct 2023 09:18:02 -0400
Subject: [PATCH] RELREC documentation (#201)

---
 docs/match_datasets.md | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/docs/match_datasets.md b/docs/match_datasets.md
index 0002e00..81525e8 100644
--- a/docs/match_datasets.md
+++ b/docs/match_datasets.md
@@ -55,3 +55,45 @@ Match Datasets:
       - USUBJID
     Is Relationship: Y
 ```
+
+## RELREC Relationship
+
+Allows for joining datasets with parent datasets using conditions specified in RELREC dataset
+
+> Condition: Related record present in parent domain dataset
+
+> Rule: FAOBJ in (--TERM, --TRT, --DECOD)
+
+```yaml
+Check:
+  all:
+    - name: FAOBJ
+      operator: not_equal_to
+      value: RELREC.__TERM
+    - name: FAOBJ
+      operator: not_equal_to
+      value: RELREC.__TRT
+    - name: FAOBJ
+      operator: not_equal_to
+      value: RELREC.__DECOD
+Match Datasets:
+  - Name: RELREC
+    Wildcard: __
+Outcome:
+  Message:
+    Related record is present in the parent domain dataset and FAOBJ is not
+    in (--TERM, --TRT, --DECOD)
+  Output Variables:
+    - FAOBJ
+    - RELREC.__TERM
+    - RELREC.__TRT
+    - RELREC.__DECOD
+Rule Type: Record Data
+Scope:
+  Classes:
+    Include:
+      - FINDINGS
+  Domains:
+    Include:
+      - FA
+```