diff --git a/src/main.py b/src/main.py
index 6c9fca2..04b3339 100644
--- a/src/main.py
+++ b/src/main.py
@@ -337,6 +337,17 @@ def main(input_path: str | None = None) -> None:
             try:
                 from .medical.fusion import merge_dossiers
                 merged = merge_dossiers(group_dossiers)
+
+                # Re-estimer le GHM sur le dossier fusionné (DP/DAS consolidés)
+                try:
+                    ghm = estimate_ghm(merged)
+                    merged.ghm_estimation = ghm
+                    logger.info("  GHM fusionné : CMD=%s, Type=%s, Sévérité=%d → %s",
+                                ghm.cmd or "?", ghm.type_ghm or "?",
+                                ghm.severite, ghm.ghm_approx or "?")
+                except Exception:
+                    logger.warning("  Erreur estimation GHM fusionné", exc_info=True)
+
                 struct_dir = STRUCTURED_DIR / subdir
                 struct_dir.mkdir(parents=True, exist_ok=True)
                 merged_path = struct_dir / f"{subdir}_fusionne_cim10.json"