MS-DRG 398Surgical
Appendix Procedures with CC
Major Diagnostic Category 06·Grouped by procedure·FY 2027
MS-DRG 398 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 06 (MDC 06) with a Complication or Comorbidity (CC). For FY 2027 it carries a relative weight of 1.5224 with a geometric mean length of stay of 2.9 days and an arithmetic mean of 3.7 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
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FY 2027 payment data
From Table 5 of the FY 2027 IPPS Final Rule (CMS).
- Relative weight:
- 1.5224 (payment multiplier vs. the average case (1.0))
- Geometric mean stay:
- 2.9 days (used for transfer payments)
- Average stay:
- 3.7 days (arithmetic mean)
- Post-acute transfer policy:
- No (not subject to it)
Same condition, other severity levels
CMS splits one condition into separate DRGs by how sick the patient is. With MCC pays more than with CC, which pays more than without CC/MCC.
Procedure codes (57)
ICD-10-PCS procedures that can group a stay to DRG 398.
- 0D5J0Z3Destruction of Appendix using Laser Interstitial Thermal Therapy, Open Approach
- 0D5J0ZZDestruction of Appendix, Open Approach
- 0D5J3Z3Destruction of Appendix using Laser Interstitial Thermal Therapy, Percutaneous Approach
- 0D5J3ZZDestruction of Appendix, Percutaneous Approach
- 0D5J4Z3Destruction of Appendix using Laser Interstitial Thermal Therapy, Percutaneous Endoscopic Approach
- 0D5J4ZZDestruction of Appendix, Percutaneous Endoscopic Approach
- 0D5J7ZZDestruction of Appendix, Via Natural or Artificial Opening
- 0D5J8ZZDestruction of Appendix, Via Natural or Artificial Opening Endoscopic
- 0D9J00ZDrainage of Appendix with Drainage Device, Open Approach
- 0D9J0ZXDrainage of Appendix, Open Approach, Diagnostic
- 0D9J0ZZDrainage of Appendix, Open Approach
- 0D9J3ZXDrainage of Appendix, Percutaneous Approach, Diagnostic
- 0D9J40ZDrainage of Appendix with Drainage Device, Percutaneous Endoscopic Approach
- 0D9J4ZXDrainage of Appendix, Percutaneous Endoscopic Approach, Diagnostic
- 0D9J4ZZDrainage of Appendix, Percutaneous Endoscopic Approach
- 0D9J70ZDrainage of Appendix with Drainage Device, Via Natural or Artificial Opening
- 0D9J7ZXDrainage of Appendix, Via Natural or Artificial Opening, Diagnostic
- 0D9J7ZZDrainage of Appendix, Via Natural or Artificial Opening
- 0D9J80ZDrainage of Appendix with Drainage Device, Via Natural or Artificial Opening Endoscopic
- 0D9J8ZXDrainage of Appendix, Via Natural or Artificial Opening Endoscopic, Diagnostic
- 0D9J8ZZDrainage of Appendix, Via Natural or Artificial Opening Endoscopic
- 0DBJ0ZXExcision of Appendix, Open Approach, Diagnostic
- 0DBJ0ZZExcision of Appendix, Open Approach
- 0DBJ3ZXExcision of Appendix, Percutaneous Approach, Diagnostic
- 0DBJ3ZZExcision of Appendix, Percutaneous Approach
- 0DBJ4ZGExcision of Appendix, Percutaneous Endoscopic Approach, Hand-Assisted
- 0DBJ4ZXExcision of Appendix, Percutaneous Endoscopic Approach, Diagnostic
- 0DBJ4ZZExcision of Appendix, Percutaneous Endoscopic Approach
- 0DBJ7ZXExcision of Appendix, Via Natural or Artificial Opening, Diagnostic
- 0DBJ7ZZExcision of Appendix, Via Natural or Artificial Opening
- 0DBJ8ZXExcision of Appendix, Via Natural or Artificial Opening Endoscopic, Diagnostic
- 0DBJ8ZZExcision of Appendix, Via Natural or Artificial Opening Endoscopic
- 0DCJ0ZZExtirpation of Matter from Appendix, Open Approach
- 0DCJ3ZZExtirpation of Matter from Appendix, Percutaneous Approach
- 0DCJ4ZZExtirpation of Matter from Appendix, Percutaneous Endoscopic Approach
- 0DCJ7ZZExtirpation of Matter from Appendix, Via Natural or Artificial Opening
- 0DCJ8ZZExtirpation of Matter from Appendix, Via Natural or Artificial Opening Endoscopic
- 0DDJ3ZXExtraction of Appendix, Percutaneous Approach, Diagnostic
- 0DDJ4ZXExtraction of Appendix, Percutaneous Endoscopic Approach, Diagnostic
- 0DDJ8ZXExtraction of Appendix, Via Natural or Artificial Opening Endoscopic, Diagnostic
- 0DFJ0ZZFragmentation in Appendix, Open Approach
- 0DFJ3ZZFragmentation in Appendix, Percutaneous Approach
- 0DFJ4ZZFragmentation in Appendix, Percutaneous Endoscopic Approach
- 0DFJ7ZZFragmentation in Appendix, Via Natural or Artificial Opening
- 0DFJ8ZZFragmentation in Appendix, Via Natural or Artificial Opening Endoscopic
- 0DNJ7ZZRelease Appendix, Via Natural or Artificial Opening
- 0DNJ8ZZRelease Appendix, Via Natural or Artificial Opening Endoscopic
- 0DQJ0ZZRepair Appendix, Open Approach
- 0DQJ3ZZRepair Appendix, Percutaneous Approach
- 0DQJ4ZZRepair Appendix, Percutaneous Endoscopic Approach
- 0DQJ7ZZRepair Appendix, Via Natural or Artificial Opening
- 0DQJ8ZZRepair Appendix, Via Natural or Artificial Opening Endoscopic
- 0DTJ0ZZResection of Appendix, Open Approach
- 0DTJ4ZGResection of Appendix, Percutaneous Endoscopic Approach, Hand-Assisted
- 0DTJ4ZZResection of Appendix, Percutaneous Endoscopic Approach
- 0DTJ7ZZResection of Appendix, Via Natural or Artificial Opening
- 0DTJ8ZZResection of Appendix, Via Natural or Artificial Opening Endoscopic