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  3. Procedure Codes in MS-DRG 397 - Appendix Procedures With MCC

Procedure Codes in MS-DRG 397 - Appendix Procedures With MCC

The Medicare Severity Diagnosis-Related Group (MS-DRG) is a patient classification system used to categorize hospital cases based on clinical similarity and expected resource use. MS-DRGs organize all possible principal diagnoses into mutually exclusive groups known as Major Diagnostic Categories (MDCs), which help determine reimbursement under the Medicare Inpatient Prospective Payment System.

This section lists the procedure codes included in MS-DRG V42.0: Appendix Procedures with MCC from October 1, 2024, through September 30, 2025.

MS-DRG: 397

MS-DRG Title: Appendix Procedures with MCC

MCD: 06

Relative Weight: Relative Weight
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Geometric LOS: Geometric Length of Stay
The geometric mean length of stay (GMLOS) is used by Medicare to calculate the reimbursement for patients whose medical treatment takes a much longer or shorter time than average.

Arithmetic LOS: Arithmetic Length of Stay
The average length of stay (ALOS) reflects the average number of days a patient spends in a hospital for each admission.

  • 0D5 - Gastrointestinal System, Destruction

    • 0D5J0Z3 - Destruction of Appendix using Laser Interstitial Thermal Therapy, Open Approach

    • 0D5J0ZZ - Destruction of Appendix, Open Approach

    • 0D5J3Z3 - Destruction of Appendix using Laser Interstitial Thermal Therapy, Percutaneous Approach

    • 0D5J3ZZ - Destruction of Appendix, Percutaneous Approach

    • 0D5J4Z3 - Destruction of Appendix using Laser Interstitial Thermal Therapy, Percutaneous Endoscopic Approach

    • 0D5J4ZZ - Destruction of Appendix, Percutaneous Endoscopic Approach

    • 0D5J7ZZ - Destruction of Appendix, Via Natural or Artificial Opening

    • 0D5J8ZZ - Destruction of Appendix, Via Natural or Artificial Opening Endoscopic

  • 0D9 - Gastrointestinal System, Drainage

    • 0D9J00Z - Drainage of Appendix with Drainage Device, Open Approach

    • 0D9J0ZX - Drainage of Appendix, Open Approach, Diagnostic

    • 0D9J0ZZ - Drainage of Appendix, Open Approach

    • 0D9J3ZX - Drainage of Appendix, Percutaneous Approach, Diagnostic

    • 0D9J40Z - Drainage of Appendix with Drainage Device, Percutaneous Endoscopic Approach

    • 0D9J4ZX - Drainage of Appendix, Percutaneous Endoscopic Approach, Diagnostic

    • 0D9J4ZZ - Drainage of Appendix, Percutaneous Endoscopic Approach

    • 0D9J70Z - Drainage of Appendix with Drainage Device, Via Natural or Artificial Opening

    • 0D9J7ZX - Drainage of Appendix, Via Natural or Artificial Opening, Diagnostic

    • 0D9J7ZZ - Drainage of Appendix, Via Natural or Artificial Opening

    • 0D9J80Z - Drainage of Appendix with Drainage Device, Via Natural or Artificial Opening Endoscopic

    • 0D9J8ZX - Drainage of Appendix, Via Natural or Artificial Opening Endoscopic, Diagnostic

    • 0D9J8ZZ - Drainage of Appendix, Via Natural or Artificial Opening Endoscopic

  • 0DB - Gastrointestinal System, Excision

    • 0DBJ0ZX - Excision of Appendix, Open Approach, Diagnostic

    • 0DBJ0ZZ - Excision of Appendix, Open Approach

    • 0DBJ3ZX - Excision of Appendix, Percutaneous Approach, Diagnostic

    • 0DBJ3ZZ - Excision of Appendix, Percutaneous Approach

    • 0DBJ4ZG - Excision of Appendix, Percutaneous Endoscopic Approach, Hand-Assisted

    • 0DBJ4ZX - Excision of Appendix, Percutaneous Endoscopic Approach, Diagnostic

    • 0DBJ4ZZ - Excision of Appendix, Percutaneous Endoscopic Approach

    • 0DBJ7ZX - Excision of Appendix, Via Natural or Artificial Opening, Diagnostic

    • 0DBJ7ZZ - Excision of Appendix, Via Natural or Artificial Opening

    • 0DBJ8ZX - Excision of Appendix, Via Natural or Artificial Opening Endoscopic, Diagnostic

    • 0DBJ8ZZ - Excision of Appendix, Via Natural or Artificial Opening Endoscopic

  • 0DC - Gastrointestinal System, Extirpation

    • 0DCJ0ZZ - Extirpation of Matter from Appendix, Open Approach

    • 0DCJ3ZZ - Extirpation of Matter from Appendix, Percutaneous Approach

    • 0DCJ4ZZ - Extirpation of Matter from Appendix, Percutaneous Endoscopic Approach

    • 0DCJ7ZZ - Extirpation of Matter from Appendix, Via Natural or Artificial Opening

    • 0DCJ8ZZ - Extirpation of Matter from Appendix, Via Natural or Artificial Opening Endoscopic

  • 0DD - Gastrointestinal System, Extraction

    • 0DDJ3ZX - Extraction of Appendix, Percutaneous Approach, Diagnostic

    • 0DDJ4ZX - Extraction of Appendix, Percutaneous Endoscopic Approach, Diagnostic

    • 0DDJ8ZX - Extraction of Appendix, Via Natural or Artificial Opening Endoscopic, Diagnostic

  • 0DF - Gastrointestinal System, Fragmentation

    • 0DFJ0ZZ - Fragmentation in Appendix, Open Approach

    • 0DFJ3ZZ - Fragmentation in Appendix, Percutaneous Approach

    • 0DFJ4ZZ - Fragmentation in Appendix, Percutaneous Endoscopic Approach

    • 0DFJ7ZZ - Fragmentation in Appendix, Via Natural or Artificial Opening

    • 0DFJ8ZZ - Fragmentation in Appendix, Via Natural or Artificial Opening Endoscopic

  • 0DN - Gastrointestinal System, Release

    • 0DNJ7ZZ - Release Appendix, Via Natural or Artificial Opening

    • 0DNJ8ZZ - Release Appendix, Via Natural or Artificial Opening Endoscopic

  • 0DQ - Gastrointestinal System, Repair

    • 0DQJ0ZZ - Repair Appendix, Open Approach

    • 0DQJ3ZZ - Repair Appendix, Percutaneous Approach

    • 0DQJ4ZZ - Repair Appendix, Percutaneous Endoscopic Approach

    • 0DQJ7ZZ - Repair Appendix, Via Natural or Artificial Opening

    • 0DQJ8ZZ - Repair Appendix, Via Natural or Artificial Opening Endoscopic

  • 0DT - Gastrointestinal System, Resection

    • 0DTJ0ZZ - Resection of Appendix, Open Approach

    • 0DTJ4ZG - Resection of Appendix, Percutaneous Endoscopic Approach, Hand-Assisted

    • 0DTJ4ZZ - Resection of Appendix, Percutaneous Endoscopic Approach

    • 0DTJ7ZZ - Resection of Appendix, Via Natural or Artificial Opening

    • 0DTJ8ZZ - Resection of Appendix, Via Natural or Artificial Opening Endoscopic