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MS-DRG 410 · MDC 07 · Surgical

MS-DRG 410: Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. without CC/MCC

Reviewed by QuickIntell RCM Editorial Team · Last reviewed

Data effective
Data currency: IPPS Table 5 FY2027 final rule (effective October 1, 2026); Definitions Manual v44 (effective October 1, 2026). Next CMS release: April 1, 2027 (v44.1 mid-year update), then the FY2028 final rule in August 2027.

Key facts for DRG 410

FY2027 relative weight
1.7660
Higher than 54% of all MS-DRGs
Change vs FY2026
+11.2%
FY2026 weight 1.5880
Geometric mean LOS
3.1 days
Arithmetic mean 3.6 days
MDC
07
Diseases and Disorders of the Hepatobiliary System and Pancreas
Severity level
without CC or MCC
Transfer policy
Not a transfer DRG

TL;DR

MS-DRG 410 is a surgical group in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas) at the base severity level of its family. CMS assigns it a FY2027 relative weight of 1.7660 with a geometric mean length of stay of 3.1 days and an arithmetic mean of 3.6. Its weight moved up 11.2% from FY2026 (1.5880). That weight is higher than 54% of all surgical and medical MS-DRGs. Its CC/MCC family (DRG 408, DRG 409) spans weights 1.7660 to 3.3220. The v44 Definitions Manual assigns it through 720 operating room procedures codes and 8 or operating room procedures codes.

What changed from FY2026 to FY2027

CMS recalibrates every MS-DRG weight annually from the prior year's MedPAR claims. For DRG 410 the FY2027 relative weight is 1.7660 against 1.5880 in FY2026, a rise of 11.21%, which exceeds the 2% threshold worth re-checking in contract models.

FY2026 versus FY2027 payment factors for MS-DRG 410
MetricFY2026FY2027Change
Relative weight1.58801.7660+0.1780
Geometric mean LOS (days)2.93.1+0.2
Arithmetic mean LOS (days)3.53.6+0.1
Weights shown are the FY2027 final values after the 10% cap on year-over-year reductions where applicable.

CC and MCC family

DRG 410 shares its base definition with 2 other MS-DRGs split by severity. The family's weights span 1.7660 to 3.3220, a 1.88× spread, which is the payment effect of documenting qualifying complications and comorbidities.

MS-DRGs in the same base group as DRG 410
DRGTitleFY2027 weightGMLOS
408Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. with MCC3.32206.8
409Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. with CC2.23204.4
410Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. without CC/MCC1.76603.1

Grouper logic (v44 Definitions Manual)

Operating Room Procedures: 720 ICD-10 codes drive assignment to this group; the first 12 are shown.

Operating Room Procedures codes assigned to DRG 410 (sample)
ICD-10 codeDescription
0F140D3Bypass Gallbladder to Duodenum with Intraluminal Device, Open Approach
0F140D4Bypass Gallbladder to Stomach with Intraluminal Device, Open Approach
0F140D5Bypass Gallbladder to Right Hepatic Duct with Intraluminal Device, Open Approach
0F140D6Bypass Gallbladder to Left Hepatic Duct with Intraluminal Device, Open Approach
0F140D7Bypass Gallbladder to Caudate Hepatic Duct with Intraluminal Device, Open Approach
0F140D8Bypass Gallbladder to Cystic Duct with Intraluminal Device, Open Approach
0F140D9Bypass Gallbladder to Common Bile Duct with Intraluminal Device, Open Approach
0F140DBBypass Gallbladder to Small Intestine with Intraluminal Device, Open Approach
0F140Z3Bypass Gallbladder to Duodenum, Open Approach
0F140Z4Bypass Gallbladder to Stomach, Open Approach
0F140Z5Bypass Gallbladder to Right Hepatic Duct, Open Approach
0F140Z6Bypass Gallbladder to Left Hepatic Duct, Open Approach

Or Operating Room Procedures: 8 ICD-10 codes drive assignment to this group.

Or Operating Room Procedures codes assigned to DRG 410 (sample)
ICD-10 codeDescription
0F9900ZDrainage of Common Bile Duct with Drainage Device, Open Approach
0F990ZZDrainage of Common Bile Duct, Open Approach
0F9940ZDrainage of Common Bile Duct with Drainage Device, Percutaneous Endoscopic Approach
0FC90ZZExtirpation of Matter from Common Bile Duct, Open Approach
0FC94ZZExtirpation of Matter from Common Bile Duct, Percutaneous Endoscopic Approach
0FJB0ZZInspection of Hepatobiliary Duct, Open Approach
0FJB4ZZInspection of Hepatobiliary Duct, Percutaneous Endoscopic Approach
XFJB4CCInspection of Hepatobiliary Duct using Single-use Choledochoscope, Percutaneous Endoscopic Approach, New Technology Group 12

Documentation and denial exposure

As a surgical DRG, assignment depends on a qualifying operating-room procedure being coded from the operative report; a missing or non-OR procedure code drops the stay into a medical DRG in MDC 07 with a lower weight. Because this family splits by severity, auditors target CC and MCC capture: each secondary diagnosis must be documented as present, monitored, evaluated or treated during the stay to survive a DRG-validation review. Typical inpatient denial codes for this group: CARC 16 (claim lacks information needed to group the stay), CARC 50 (the admission or procedure is judged not medically necessary), CARC 97 (a service is bundled into the DRG payment).

How QuickIntell uses DRG 410 data

QuickCode groups inpatient encounters against the current v44 logic, flags CC and MCC candidates that lack supporting documentation, and shows the weight difference across the family before the claim drops. QuickScribe captures the attending's language that supports severity, and QuickRCM works DRG-validation denials with the grouper evidence attached.

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Frequently asked questions — DRG 410

What is MS-DRG 410?

MS-DRG 410 is "Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. without CC/MCC", a surgical Medicare Severity Diagnosis-Related Group in MDC 07, Diseases and Disorders of the Hepatobiliary System and Pancreas. Medicare pays inpatient stays grouped here at the hospital's base rate multiplied by the DRG relative weight.

What is the FY2027 relative weight for DRG 410?

The FY2027 relative weight is 1.7660 (IPPS final rule Table 5, effective October 1, 2026). In FY2026 it was 1.5880, a change of +11.2%.

What is the average length of stay for DRG 410?

CMS reports a geometric mean length of stay of 3.1 days and an arithmetic mean of 3.6 days for FY2027. The geometric mean is used for transfer-payment calculations.

Which DRGs are in the same CC/MCC family as 410?

DRG 408 (Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. with MCC, weight 3.3220); DRG 409 (Biliary Tract Procedures Except Only Cholecystectomy with or without C.D.E. with CC, weight 2.2320). The family's weights range from 1.7660 to 3.3220, so documented complications and comorbidities change payment materially.

What documentation supports the severity level of DRG 410?

DRG 410 is the base-severity assignment: no secondary diagnosis on the CC or MCC lists was coded, or the only ones present are excluded for this principal diagnosis. Revenue-integrity review here looks for undercapture, meaning conditions treated during the stay (electrolyte disorders, specified anemia, acute blood loss, pressure injuries present on admission) that were never documented to the specificity the lists require. A compliant query to the attending, not a coder assumption, is the only way to move a stay to the CC or MCC sibling.

Which codes group to DRG 410?

The v44 Definitions Manual lists 720 operating room procedures codes and 8 or operating room procedures codes for this group. Examples from the operating room procedures list: 0F140D3 (Bypass Gallbladder to Duodenum with Intraluminal Device, Open Approach); 0F140D4 (Bypass Gallbladder to Stomach with Intraluminal Device, Open Approach); 0F140D5 (Bypass Gallbladder to Right Hepatic Duct with Intraluminal Device, Open Approach); 0F140D6 (Bypass Gallbladder to Left Hepatic Duct with Intraluminal Device, Open Approach).

Is DRG 410 a post-acute transfer DRG?

No. DRG 410 is not on the FY2027 post-acute care transfer list, so the transfer per-diem policy does not apply to it.

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-01. Verify against the primary file before billing or contracting decisions.

Disclaimer

This page is an operational reference compiled from the CMS IPPS FY2027 final rule (Table 5) and the v44 ICD-10 MS-DRG Definitions Manual. Relative weights are national factors; actual payment depends on each hospital's wage-adjusted base rate, add-ons, outliers and transfer adjustments. Nothing here is legal, clinical or billing advice; verify grouping against your encoder and the published CMS files.