diff --git a/src/rules.php b/src/rules.php
index 727ad18..33d877a 100644
--- a/src/rules.php
+++ b/src/rules.php
@@ -2,7 +2,7 @@
 
 use Somnambulist\Components\Validation\Factory;
 
-function pixCobrancaImediataRules(array $data)
+function pixCobrancaImediataComValorRules(array $data)
 {
     $rules = [
         'expiracao' => 'integer',
@@ -23,3 +23,26 @@ function pixCobrancaImediataRules(array $data)
         return true;
     }
 }
+
+
+function pixCobrancaImediataSemValorRules(array $data)
+{
+    $rules = [
+        'expiracao' => 'integer',
+        'devedor' => 'array',
+        'devedor.documento' => 'string|min:11|max:18',
+        'devedor.nome' => 'required_with:devedor.documento|string|max:100',
+        'valor' => 'sometimes|integer',
+        'chave' => 'required|string',
+        'txid' => 'required|string|max:100',
+        'solicitacaoPagador' => 'string|max:140'
+    ];
+    
+    $validation = (new Factory)->validate($data, $rules);
+
+    if ($validation->fails()) {
+        throw new Exception(json_encode($validation->errors()->firstOfAll()), 500);
+    } else {
+        return true;
+    }
+}