MS-DRG · FY 2026 v43.0

MS-DRG 320 – Other Endovascular Cardiac Valve Procedures without MCC

A Surgical DRG in MDC 05 (Diseases & Disorders of the Circulatory System). Inpatient cases group to DRG 320 when one of the 46 ICD-10-PCS operating-room procedures listed below is reported. Its FY 2026 relative weight is 2.4053 with a geometric mean length of stay of 2.1 days.

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

2.4053

Relative Weight

2.1

Geometric Mean LOS (days)

3.0

Arithmetic Mean LOS (days)

Procedure Codes

Severity family

DRG 319with MCCWeight 4.4629 · GMLOS 7.4 daysDRG 320without MCCWeight 2.4053 · GMLOS 2.1 days

How a case is assigned to DRG 320

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 → 319; without MCC → 320.

ICD-10-PCS

Procedure Codes 46 codes · 23 categories

46 of 46 shown

025F Heart and Great Vessels, Destruction1 code

025F3ZZ Destruction of Aortic Valve, Percutaneous Approach

025G Heart and Great Vessels, Destruction1 code

025G3ZZ Destruction of Mitral Valve, Percutaneous Approach

025H Heart and Great Vessels, Destruction1 code

025H3ZZ Destruction of Pulmonary Valve, Percutaneous Approach

025J Heart and Great Vessels, Destruction1 code

025J3ZZ Destruction of Tricuspid Valve, Percutaneous Approach

027F Heart and Great Vessels, Dilation3 codes

027F34Z Dilation of Aortic Valve with Drug-eluting Intraluminal Device, Percutaneous Approach
027F3DZ Dilation of Aortic Valve with Intraluminal Device, Percutaneous Approach
027F3ZZ Dilation of Aortic Valve, Percutaneous Approach

027G Heart and Great Vessels, Dilation3 codes

027G34Z Dilation of Mitral Valve with Drug-eluting Intraluminal Device, Percutaneous Approach
027G3DZ Dilation of Mitral Valve with Intraluminal Device, Percutaneous Approach
027G3ZZ Dilation of Mitral Valve, Percutaneous Approach

027H Heart and Great Vessels, Dilation3 codes

027H34Z Dilation of Pulmonary Valve with Drug-eluting Intraluminal Device, Percutaneous Approach
027H3DZ Dilation of Pulmonary Valve with Intraluminal Device, Percutaneous Approach
027H3ZZ Dilation of Pulmonary Valve, Percutaneous Approach

027J Heart and Great Vessels, Dilation3 codes

027J34Z Dilation of Tricuspid Valve with Drug-eluting Intraluminal Device, Percutaneous Approach
027J3DZ Dilation of Tricuspid Valve with Intraluminal Device, Percutaneous Approach
027J3ZZ Dilation of Tricuspid Valve, Percutaneous Approach

02BF Heart and Great Vessels, Excision1 code

02BF3ZZ Excision of Aortic Valve, Percutaneous Approach

02BG Heart and Great Vessels, Excision1 code

02BG3ZZ Excision of Mitral Valve, Percutaneous Approach

02BH Heart and Great Vessels, Excision1 code

02BH3ZZ Excision of Pulmonary Valve, Percutaneous Approach

02BJ Heart and Great Vessels, Excision1 code

02BJ3ZZ Excision of Tricuspid Valve, Percutaneous Approach

02QF Heart and Great Vessels, Repair2 codes

02QF3ZJ Repair Aortic Valve created from Truncal Valve, Percutaneous Approach
02QF3ZZ Repair Aortic Valve, Percutaneous Approach

02QG Heart and Great Vessels, Repair2 codes

02QG3ZE Repair Mitral Valve created from Left Atrioventricular Valve, Percutaneous Approach
02QG3ZZ Repair Mitral Valve, Percutaneous Approach

02QH Heart and Great Vessels, Repair1 code

02QH3ZZ Repair Pulmonary Valve, Percutaneous Approach

02QJ Heart and Great Vessels, Repair2 codes

02QJ3ZG Repair Tricuspid Valve created from Right Atrioventricular Valve, Percutaneous Approach
02QJ3ZZ Repair Tricuspid Valve, Percutaneous Approach

02TH Heart and Great Vessels, Resection1 code

02TH3ZZ Resection of Pulmonary Valve, Percutaneous Approach

02VG Heart and Great Vessels, Restriction1 code

02VG3ZZ Restriction of Mitral Valve, Percutaneous Approach

02WF Heart and Great Vessels, Revision3 codes

02WF38Z Revision of Zooplastic Tissue in Aortic Valve, Percutaneous Approach
02WF3JZ Revision of Synthetic Substitute in Aortic Valve, Percutaneous Approach
02WF3KZ Revision of Nonautologous Tissue Substitute in Aortic Valve, Percutaneous Approach

02WG Heart and Great Vessels, Revision4 codes

02WG37Z Revision of Autologous Tissue Substitute in Mitral Valve, Percutaneous Approach
02WG38Z Revision of Zooplastic Tissue in Mitral Valve, Percutaneous Approach
02WG3JZ Revision of Synthetic Substitute in Mitral Valve, Percutaneous Approach
02WG3KZ Revision of Nonautologous Tissue Substitute in Mitral Valve, Percutaneous Approach

02WH Heart and Great Vessels, Revision4 codes

02WH37Z Revision of Autologous Tissue Substitute in Pulmonary Valve, Percutaneous Approach
02WH38Z Revision of Zooplastic Tissue in Pulmonary Valve, Percutaneous Approach
02WH3JZ Revision of Synthetic Substitute in Pulmonary Valve, Percutaneous Approach
02WH3KZ Revision of Nonautologous Tissue Substitute in Pulmonary Valve, Percutaneous Approach

02WJ Heart and Great Vessels, Revision4 codes

02WJ37Z Revision of Autologous Tissue Substitute in Tricuspid Valve, Percutaneous Approach
02WJ38Z Revision of Zooplastic Tissue in Tricuspid Valve, Percutaneous Approach
02WJ3JZ Revision of Synthetic Substitute in Tricuspid Valve, Percutaneous Approach
02WJ3KZ Revision of Nonautologous Tissue Substitute in Tricuspid Valve, Percutaneous Approach

X28F New Technology, Cardiovascular System, Division2 codes

X28F3VA Division of Aortic Valve using Intraluminal Bioprosthetic Valve Leaflet Splitting Technology in Existing Valve, Percutaneous Approach, New Technology Group 10
X28F3WB Division of Aortic Valve using Leaflet Laceration, Radiofrequency Energy, Percutaneous Approach, New Technology Group 11

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 320?

MS-DRG 320 (Other Endovascular Cardiac Valve Procedures without MCC) is a surgical DRG in MDC 05 (Diseases & Disorders of the Circulatory System). Its FY 2026 relative weight is 2.4053 with a geometric mean length of stay of 2.1 days.

What is the difference between DRG 319, 320?

All 2 share the same base category; the severity of secondary diagnoses separates them: 319 (with MCC), 320 (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 320?

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

What is the relative weight of DRG 320?

The FY 2026 relative weight of this DRG is 2.4053, meaning reimbursement of roughly 2.41 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.

← PreviousDRG 319 – Other Endovascular Cardiac Valve Procedures with MCC Next →DRG 321 – Percutaneous Cardiovascular Procedures with Intraluminal

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.