MS-DRG · FY 2026 v43.0

MS-DRG 273 – Percutaneous and Other Intracardiac Procedures with MCC

A Surgical DRG in MDC 05 (Diseases & Disorders of the Circulatory System). Inpatient cases group to DRG 273 when one of the 51 ICD-10-PCS operating-room procedures listed below is reported. Its FY 2026 relative weight is 4.1255 with a geometric mean length of stay of 3.7 days.

Surgical DRG – assigned by operating-room procedure✓ Official CMS v43.0 dataset

4.1255

Relative Weight

3.7

Geometric Mean LOS (days)

5.6

Arithmetic Mean LOS (days)

Procedure Codes

Severity family

DRG 273with MCCWeight 4.1255 · GMLOS 3.7 daysDRG 274without MCCWeight 3.2917 · GMLOS 1.2 days

How a case is assigned to DRG 273

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), then applies the severity split from secondary diagnoses: with MCC → 273; without MCC → 274.

ICD-10-PCS

Procedure Codes 51 codes · 24 categories

51 of 51 shown

0255 Heart and Great Vessels, Destruction1 code

02553ZZ Destruction of Atrial Septum, Percutaneous Approach

0256 Heart and Great Vessels, Destruction1 code

02563ZZ Destruction of Right Atrium, Percutaneous Approach

0257 Heart and Great Vessels, Destruction3 codes

02573ZK Destruction of Left Atrial Appendage, Percutaneous Approach
02573ZZ Destruction of Left Atrium, Percutaneous Approach
02574ZK Destruction of Left Atrial Appendage, Percutaneous Endoscopic Approach

0258 Heart and Great Vessels, Destruction2 codes

02583ZF Destruction of Conduction Mechanism using Irreversible Electroporation, Percutaneous Approach
02583ZZ Destruction of Conduction Mechanism, Percutaneous Approach

0259 Heart and Great Vessels, Destruction1 code

02593ZZ Destruction of Chordae Tendineae, Percutaneous Approach

025K Heart and Great Vessels, Destruction1 code

025K3ZZ Destruction of Right Ventricle, Percutaneous Approach

025L Heart and Great Vessels, Destruction1 code

025L3ZZ Destruction of Left Ventricle, Percutaneous Approach

025M Heart and Great Vessels, Destruction1 code

025M3ZZ Destruction of Ventricular Septum, Percutaneous Approach

027F Heart and Great Vessels, Dilation3 codes

027F44Z Dilation of Aortic Valve with Drug-eluting Intraluminal Device, Percutaneous Endoscopic Approach
027F4DZ Dilation of Aortic Valve with Intraluminal Device, Percutaneous Endoscopic Approach
027F4ZZ Dilation of Aortic Valve, Percutaneous Endoscopic Approach

027G Heart and Great Vessels, Dilation3 codes

027G44Z Dilation of Mitral Valve with Drug-eluting Intraluminal Device, Percutaneous Endoscopic Approach
027G4DZ Dilation of Mitral Valve with Intraluminal Device, Percutaneous Endoscopic Approach
027G4ZZ Dilation of Mitral Valve, Percutaneous Endoscopic Approach

027H Heart and Great Vessels, Dilation3 codes

027H44Z Dilation of Pulmonary Valve with Drug-eluting Intraluminal Device, Percutaneous Endoscopic Approach
027H4DZ Dilation of Pulmonary Valve with Intraluminal Device, Percutaneous Endoscopic Approach
027H4ZZ Dilation of Pulmonary Valve, Percutaneous Endoscopic Approach

027J Heart and Great Vessels, Dilation3 codes

027J44Z Dilation of Tricuspid Valve with Drug-eluting Intraluminal Device, Percutaneous Endoscopic Approach
027J4DZ Dilation of Tricuspid Valve with Intraluminal Device, Percutaneous Endoscopic Approach
027J4ZZ Dilation of Tricuspid Valve, Percutaneous Endoscopic Approach

02B5 Heart and Great Vessels, Excision1 code

02B53ZZ Excision of Atrial Septum, Percutaneous Approach

02B6 Heart and Great Vessels, Excision1 code

02B63ZZ Excision of Right Atrium, Percutaneous Approach

02B7 Heart and Great Vessels, Excision3 codes

02B73ZK Excision of Left Atrial Appendage, Percutaneous Approach
02B73ZZ Excision of Left Atrium, Percutaneous Approach
02B74ZK Excision of Left Atrial Appendage, Percutaneous Endoscopic Approach

02B8 Heart and Great Vessels, Excision1 code

02B83ZZ Excision of Conduction Mechanism, Percutaneous Approach

02B9 Heart and Great Vessels, Excision1 code

02B93ZZ Excision of Chordae Tendineae, Percutaneous Approach

02BM Heart and Great Vessels, Excision1 code

02BM3ZZ Excision of Ventricular Septum, Percutaneous Approach

02K8 Heart and Great Vessels, Map3 codes

02K80ZZ Map Conduction Mechanism, Open Approach
02K83ZZ Map Conduction Mechanism, Percutaneous Approach
02K84ZZ Map Conduction Mechanism, Percutaneous Endoscopic Approach

02L7 Heart and Great Vessels, Occlusion9 codes

02L70CK Occlusion of Left Atrial Appendage with Extraluminal Device, Open Approach
02L70DK Occlusion of Left Atrial Appendage with Intraluminal Device, Open Approach
02L70ZK Occlusion of Left Atrial Appendage, Open Approach
02L73CK Occlusion of Left Atrial Appendage with Extraluminal Device, Percutaneous Approach
02L73DK Occlusion of Left Atrial Appendage with Intraluminal Device, Percutaneous Approach
02L73ZK Occlusion of Left Atrial Appendage, Percutaneous Approach
02L74CK Occlusion of Left Atrial Appendage with Extraluminal Device, Percutaneous Endoscopic Approach
02L74DK Occlusion of Left Atrial Appendage with Intraluminal Device, Percutaneous Endoscopic Approach
02L74ZK Occlusion of Left Atrial Appendage, Percutaneous Endoscopic Approach

02T8 Heart and Great Vessels, Resection1 code

02T83ZZ Resection of Conduction Mechanism, Percutaneous Approach

02U5 Heart and Great Vessels, Supplement2 codes

02U53JZ Supplement Atrial Septum with Synthetic Substitute, Percutaneous Approach
02U54JZ Supplement Atrial Septum with Synthetic Substitute, Percutaneous Endoscopic Approach

02VL Heart and Great Vessels, Restriction2 codes

02VL3CZ Restriction of Left Ventricle with Extraluminal Device, Percutaneous Approach
02VL3ZZ Restriction of Left Ventricle, Percutaneous Approach

4A02 Measurement and Monitoring, Physiological Systems, Measurement3 codes

4A023FZ Measurement of Cardiac Rhythm, Percutaneous Approach
4A027FZ Measurement of Cardiac Rhythm, Via Natural or Artificial Opening
4A028FZ Measurement of Cardiac Rhythm, Via Natural or Artificial Opening Endoscopic

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 273?

MS-DRG 273 (Percutaneous and Other Intracardiac Procedures with MCC) is a surgical DRG in MDC 05 (Diseases & Disorders of the Circulatory System). Its FY 2026 relative weight is 4.1255 with a geometric mean length of stay of 3.7 days.

What is the difference between DRG 273, 274?

All 2 share the same base category; the severity of secondary diagnoses separates them: 273 (with MCC), 274 (without MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.

How many procedure codes group to DRG 273?

51 ICD-10-PCS operating-room procedure codes group to this DRG.

What is the relative weight of DRG 273?

The FY 2026 relative weight of this DRG is 4.1255, meaning reimbursement of roughly 4.13 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.

← PreviousDRG 272 – Other Major Cardiovascular Procedures without CC/MCC Next →DRG 274 – Percutaneous and Other Intracardiac Procedures without MCC

Source: CMS ICD-10 MS-DRG v43.0 Definitions Manual and the FY 2026 IPPS Final Rule (Table 5), effective October 1, 2025 through September 30, 2026. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.