MS-DRG · FY 2027 v44.0
MS-DRG 277 – Cardiac Defibrillator Implant without MCC
A Surgical DRG in MDC 05 (Diseases & Disorders of the Circulatory System). Inpatient cases group to DRG 277 when one of the 51 ICD-10-PCS operating-room procedures listed below is reported. Its FY 2027 relative weight is 4.6910 with a geometric mean length of stay of 3.4 days.
Surgical DRG – assigned by operating-room procedure✓ Official CMS v44.0 dataset
4.6910
Relative Weight
3.4
Geometric Mean LOS (days)
4.2
Arithmetic Mean LOS (days)
51
Procedure Codes
How a case is assigned to DRG 277
The grouper first assigns the case to MDC 05 from the principal diagnosis, then matches a qualifying operating-room procedure from the ICD-10-PCS list below (this is a Surgical DRG).
ICD-10-PCS
Procedure Codes 51 codes · 10 categories
51 of 51 shown
02H4 Heart and Great Vessels, Insertion5 codes
- 02H40KZ Insertion of Defibrillator Lead into Coronary Vein, Open Approach
- 02H43JZ Insertion of Pacemaker Lead into Coronary Vein, Percutaneous Approach
- 02H43KZ Insertion of Defibrillator Lead into Coronary Vein, Percutaneous Approach
- 02H43MZ Insertion of Cardiac Lead into Coronary Vein, Percutaneous Approach
- 02H44KZ Insertion of Defibrillator Lead into Coronary Vein, Percutaneous Endoscopic Approach
02H6 Heart and Great Vessels, Insertion6 codes
- 02H60KZ Insertion of Defibrillator Lead into Right Atrium, Open Approach
- 02H60MZ Insertion of Cardiac Lead into Right Atrium, Open Approach
- 02H63KZ Insertion of Defibrillator Lead into Right Atrium, Percutaneous Approach
- 02H63MZ Insertion of Cardiac Lead into Right Atrium, Percutaneous Approach
- 02H64KZ Insertion of Defibrillator Lead into Right Atrium, Percutaneous Endoscopic Approach
- 02H64MZ Insertion of Cardiac Lead into Right Atrium, Percutaneous Endoscopic Approach
02H7 Heart and Great Vessels, Insertion3 codes
02HK Heart and Great Vessels, Insertion6 codes
- 02HK0KZ Insertion of Defibrillator Lead into Right Ventricle, Open Approach
- 02HK0MZ Insertion of Cardiac Lead into Right Ventricle, Open Approach
- 02HK3KZ Insertion of Defibrillator Lead into Right Ventricle, Percutaneous Approach
- 02HK3MZ Insertion of Cardiac Lead into Right Ventricle, Percutaneous Approach
- 02HK4KZ Insertion of Defibrillator Lead into Right Ventricle, Percutaneous Endoscopic Approach
- 02HK4MZ Insertion of Cardiac Lead into Right Ventricle, Percutaneous Endoscopic Approach
02HL Heart and Great Vessels, Insertion3 codes
02HN Heart and Great Vessels, Insertion9 codes
- 02HN0JZ Insertion of Pacemaker Lead into Pericardium, Open Approach
- 02HN0KZ Insertion of Defibrillator Lead into Pericardium, Open Approach
- 02HN0MZ Insertion of Cardiac Lead into Pericardium, Open Approach
- 02HN3JZ Insertion of Pacemaker Lead into Pericardium, Percutaneous Approach
- 02HN3KZ Insertion of Defibrillator Lead into Pericardium, Percutaneous Approach
- 02HN3MZ Insertion of Cardiac Lead into Pericardium, Percutaneous Approach
- 02HN4JZ Insertion of Pacemaker Lead into Pericardium, Percutaneous Endoscopic Approach
- 02HN4KZ Insertion of Defibrillator Lead into Pericardium, Percutaneous Endoscopic Approach
- 02HN4MZ Insertion of Cardiac Lead into Pericardium, Percutaneous Endoscopic Approach
0JH6 Subcutaneous Tissue and Fascia, Insertion9 codes
- 0JH608Z Insertion of Defibrillator Generator into Chest Subcutaneous Tissue and Fascia, Open Approach
- 0JH609Z Insertion of Cardiac Resynchronization Defibrillator Pulse Generator into Chest Subcutaneous Tissue and Fascia, Open Approach
- 0JH60AZ Insertion of Contractility Modulation Device into Chest Subcutaneous Tissue and Fascia, Open Approach
- 0JH60FZ Insertion of Subcutaneous Defibrillator Lead into Chest Subcutaneous Tissue and Fascia, Open Approach
- 0JH60MZ Insertion of Stimulator Generator into Chest Subcutaneous Tissue and Fascia, Open Approach
- 0JH638Z Insertion of Defibrillator Generator into Chest Subcutaneous Tissue and Fascia, Percutaneous Approach
- 0JH639Z Insertion of Cardiac Resynchronization Defibrillator Pulse Generator into Chest Subcutaneous Tissue and Fascia, Percutaneous Approach
- 0JH63AZ Insertion of Contractility Modulation Device into Chest Subcutaneous Tissue and Fascia, Percutaneous Approach
- 0JH63FZ Insertion of Subcutaneous Defibrillator Lead into Chest Subcutaneous Tissue and Fascia, Percutaneous Approach
0JH8 Subcutaneous Tissue and Fascia, Insertion6 codes
- 0JH808Z Insertion of Defibrillator Generator into Abdomen Subcutaneous Tissue and Fascia, Open Approach
- 0JH809Z Insertion of Cardiac Resynchronization Defibrillator Pulse Generator into Abdomen Subcutaneous Tissue and Fascia, Open Approach
- 0JH80AZ Insertion of Contractility Modulation Device into Abdomen Subcutaneous Tissue and Fascia, Open Approach
- 0JH838Z Insertion of Defibrillator Generator into Abdomen Subcutaneous Tissue and Fascia, Percutaneous Approach
- 0JH839Z Insertion of Cardiac Resynchronization Defibrillator Pulse Generator into Abdomen Subcutaneous Tissue and Fascia, Percutaneous Approach
- 0JH83AZ Insertion of Contractility Modulation Device into Abdomen Subcutaneous Tissue and Fascia, Percutaneous Approach
0WHC Anatomical Regions, General, Insertion3 codes
XHH8 New Technology, Skin, Subcutaneous Tissue, Fascia and Breast, Insertion1 code
- XHH80JC Insertion of Contractility Modulation Device with Defibrillator Generator into Chest Subcutaneous Tissue and Fascia, Open Approach, New Technology Group 12
ICD-10-CM
Qualifying Diagnosis Codes
Diagnosis codes do not drive assignment for this DRG. Cases group here from the ICD-10-PCS procedure list below.
Frequently Asked Questions
What is MS-DRG 277?
MS-DRG 277 (Cardiac Defibrillator Implant without MCC) is a surgical DRG in MDC 05 (Diseases & Disorders of the Circulatory System). Its FY 2027 relative weight is 4.6910 with a geometric mean length of stay of 3.4 days.
How many procedure codes group to DRG 277?
51 ICD-10-PCS operating-room procedure codes group to this DRG.
What is the relative weight of DRG 277?
The FY 2027 relative weight of this DRG is 4.6910, meaning reimbursement of roughly 4.69 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
← PreviousDRG 276 – Cardiac Defibrillator Implant with MCC or Carotid SinusNext →DRG 278 – Ultrasound Accelerated and Other Thrombolysis of Peripheral
Source: CMS ICD-10 MS-DRG v44.0 Definitions Manual and the FY 2027 IPPS Final Rule (Table 5), effective October 1, 2026 through September 30, 2027. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.
