diff --git a/app/routes/ventas.py b/app/routes/ventas.py
index ed3d097..288fad8 100644
--- a/app/routes/ventas.py
+++ b/app/routes/ventas.py
@@ -43,8 +43,9 @@ def _query_rows(cfg, query_text, factura, fecha_inicio, fecha_fin):
     if not ok2:
         return None, err
 
-    if prefix and rows and "PREFIJO" in rows[0]:
-        rows = [r for r in rows if str(r.get("PREFIJO") or "").strip().upper() == prefix]
+    if rows and "PREFIJO" in rows[0]:
+        filter_prefix = prefix if prefix else "CMXC"
+        rows = [r for r in rows if str(r.get("PREFIJO") or "").strip().upper() == filter_prefix]
 
     return rows, None
 
diff --git a/app/templates/ventas.html b/app/templates/ventas.html
index cff4287..e20b1f0 100644
--- a/app/templates/ventas.html
+++ b/app/templates/ventas.html
@@ -175,7 +175,6 @@ function renderTabla() {
     let html = `<div class="overflow-x-auto">
     <table class="w-full text-xs">
         <thead><tr class="text-left text-gray-400 border-b border-gray-200">
-            <th class="pb-2 font-medium pr-3">IDRECEP.</th>
             <th class="pb-2 font-medium pr-3">Factura</th>
             <th class="pb-2 font-medium pr-3">Paciente</th>
             <th class="pb-2 font-medium pr-3">Contrato</th>
@@ -220,7 +219,6 @@ function filaHtml(item) {
 
     return `<tr id="${rowId}" class="border-b border-gray-50 hover:bg-gray-50/80 transition-colors ${rowCls}">
         <td class="py-2 pr-3 font-mono text-gray-600">${escHtml(id)}</td>
-        <td class="py-2 pr-3 text-gray-600">${escHtml(String(item.factura || '-'))}</td>
         <td class="py-2 pr-3 text-gray-600">${escHtml(String(item.paciente || '-'))}</td>
         <td class="py-2 pr-3"><span class="px-1.5 py-0.5 bg-emerald-100 text-emerald-700 rounded text-xs font-mono">${escHtml(String(item.contrato || '-'))}</span></td>
         <td class="py-2 pr-3 text-gray-500 max-w-[180px] truncate" title="${escAttr(examsStr)}">${escHtml(examsStr)}</td>