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diff --git a/queries/v2_pmplus20.py b/queries/v2_pmplus20.py
index 003479d..cb54953 100644
--- a/queries/v2_pmplus20.py
+++ b/queries/v2_pmplus20.py
@@ -12,14 +12,24 @@ PMPLUS20 통계 쿼리 (v2)
 - PRICE_T → TOT_PRICE, PRICE_C → INS_PRICE, PRICE_P → EXE_PRICE, PRICE_N → REAL_PRICE
 - S_Prep → INS_PREP_PRICE
 - Drug_T4 → NON_DRUG_PRICE + EXP_EXE_PRICE
-- PreGubun → MPRE_TYPE (값 체계 동일: 0,1,9,F 등)
+- PreGubun → MPRE_TYPE + MPRE_TYPE_GUBUN 조합 (아래 매핑 참고)
 - Holiday → HD_ADD + PRES_TIME_GUBUN 조합
 - Appr_Gubun → APPR_GUBUN (값 동일)
 - nAPPROVAL_NUM → CARD_ADM_NO
 
+보험구분 매핑 (V1 PreGubun ↔ V2):
+- '0' ← MPRE_TYPE='0' (건강보험)
+- '1' ← MPRE_TYPE='1' (의료급여1종)
+- '2' ← MPRE_TYPE='2' (산재)
+- '3' ← MPRE_TYPE='3' (의료급여2종)
+- '7' ← MPRE_TYPE='4' + MPRE_TYPE_GUBUN='C' (차상위1)
+- 'E' ← MPRE_TYPE='4' + MPRE_TYPE_GUBUN='E' (보훈)
+- 'F' ← MPRE_TYPE='4' + MPRE_TYPE_GUBUN='F' (차상위2)
+- '9' ← MPRE_TYPE='9' (비급여)
+
 주의:
 - PRES_GUBUN='E' (재고보정) 레코드 제외 필요
-- MPRE_TYPE_GUBUN='F'인 경우 PreGubun='F' (차상위)
+- MPRE_TYPE='4'는 특수보험 그룹, MPRE_TYPE_GUBUN으로 세부 구분
 """
 import pyodbc
 from datetime import date
@@ -68,7 +78,9 @@ def get_sales_stats(date_from: str, date_to: str) -> dict:
         SELECT
             m.DRUG_SEQ AS PreSerial,
             CASE
-                WHEN m.MPRE_TYPE_GUBUN = 'F' THEN 'F'
+                WHEN m.MPRE_TYPE = '4' AND m.MPRE_TYPE_GUBUN = 'E' THEN 'E'  -- 보훈
+                WHEN m.MPRE_TYPE = '4' AND m.MPRE_TYPE_GUBUN = 'F' THEN 'F'  -- 차상위2
+                WHEN m.MPRE_TYPE = '4' AND m.MPRE_TYPE_GUBUN = 'C' THEN '7'  -- 차상위1
                 ELSE ISNULL(m.MPRE_TYPE, '0')
             END AS PreGubun,
             m.PAT_JUMIN_NO AS PaNum,