diff --git a/README.md b/README.md
index 61e7407..29f2203 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ Enable HTTP(S) proxy by adding the environment to `**ENVIRONMENTS**`:
 ```
 
 #### Export Chunking
-The ODM export from REDCap is by default divided into exports for data of single patients to avoid connection issues and timeouts but can be changed by adding the argument:
+By default, the ODM export from REDCap is divided into exports for data of single patients to avoid connection issues and timeouts. This can be changed by adding the argument:
 ```sh
 --odm.redcap.api.patientspercall=**PATIENTS_PER_CALL**
 ```
@@ -80,6 +80,11 @@ By default, all subjects within an ODM are processed. To process only subjects w
 ```
 (Note: To reset the filtering, empty the folder `**CACHE_FOLDER**`.)
 
+To filter subjects using REDCap's filter logic add the argument with `**FILTER_LOGIC**` holding a valid filter logic string:
+```sh
+--odm.redcap.api.filterlogic=**FILTER_LOGIC**
+```
+
 ### DIS
 ```sh
 --odm.dis.rest.url=**ODM_DIS_REST_URL**
diff --git a/docs/index.md b/docs/index.md
index 5afc461..b23f835 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -68,7 +68,7 @@ Enable HTTP(S) proxy by adding the environment to `**ENVIRONMENTS**`:
 ```
 
 #### Export Chunking
-The ODM export from REDCap is by default divided into exports for data of single patients to avoid connection issues and timeouts but can be changed by adding the argument:
+By default, the ODM export from REDCap is divided into exports for data of single patients to avoid connection issues and timeouts. This can be changed by adding the argument:
 ```sh
 --odm.redcap.api.patientspercall=**PATIENTS_PER_CALL**
 ```
@@ -80,6 +80,11 @@ By default, all subjects within an ODM are processed. To process only subjects w
 ```
 (Note: To reset the filtering, empty the folder `**CACHE_FOLDER**`.)
 
+To filter subjects using REDCap's filter logic add the argument with `**FILTER_LOGIC**` holding a valid filter logic string:
+```sh
+--odm.redcap.api.filterlogic=**FILTER_LOGIC**
+```
+
 ### DIS
 ```sh
 --odm.dis.rest.url=**ODM_DIS_REST_URL**
diff --git a/src/main/java/de/difuture/uds/odm2fhir/odm/processor/REDCapODMProcessor.java b/src/main/java/de/difuture/uds/odm2fhir/odm/processor/REDCapODMProcessor.java
index ee03847..a0802d2 100644
--- a/src/main/java/de/difuture/uds/odm2fhir/odm/processor/REDCapODMProcessor.java
+++ b/src/main/java/de/difuture/uds/odm2fhir/odm/processor/REDCapODMProcessor.java
@@ -60,6 +60,9 @@ public class REDCapODMProcessor extends ODMProcessor {
   @Value("${odm.redcap.api.patientspercall:1}")
   private int patientspercall;
 
+  @Value("${odm.redcap.api.filterlogic:}")
+  private String filterlogic;
+
   public Stream<InputStream> read() throws Exception {
     log.info("Reading ODM via REDCap API at '{}'", url);
 
@@ -98,6 +101,7 @@ private Stream<String> readPatientIDs() throws Exception {
                                     .addParameter("format", "csv")
                                     .addParameter("fields", "record_id")
                                     .addParameter("events", "basisdaten_arm_1,1_fall_arm_1,2_fall_arm_1,3_fall_arm_1")
+                                    .addParameter("filterLogic", filterlogic)
                                     .build();
 
     return readLines(HTTP_CLIENT_BUILDER.build().execute(httpPost).getEntity().getContent(), UTF_8)
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 89669c8..f44d0e7 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -9,6 +9,7 @@ odm:
 #    url: http://redcap/api/
 #    token: 12345ABCDE67890ABCDE12345ABCDEF0
 #    patientspercall: 1
+#    filterlogic: "[record_id] <> 0"
 #    key:
 #      file.path: /some/path/client_certificate.p12
 #      password: change-password