027T4ZZICD-10-PCS Code: Dilation of Left Pulmonary Vein, Percutaneous Endoscopic Approach

Potential MS-DRG Relationships (FY2026)

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 3 MS-DRGs:

• MDC 05 — Other Vascular Procedures: DRG 252, DRG 253, DRG 254

From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.

Related Codes

Same operation — other Body Part

Same table and root operation, differing only in the body part character.

027L4ZZ — Dilation of Left Ventricle, Percutaneous Endoscopic Approach, 027P4ZZ — Dilation of Pulmonary Trunk, Percutaneous Endoscopic Approach, 027Q4ZZ — Dilation of Right Pulmonary Artery, Percutaneous Endoscopic Approach, 027R4ZZ — Dilation of Left Pulmonary Artery, Percutaneous Endoscopic Approach, 027S4ZZ — Dilation of Right Pulmonary Vein, Percutaneous Endoscopic Approach, 027V4ZZ — Dilation of Superior Vena Cava, Percutaneous Endoscopic Approach, 027W4ZZ — Dilation of Thoracic Aorta, Descending, Percutaneous Endoscopic Approach, 027X4ZZ — Dilation of Thoracic Aorta, Ascending/Arch, Percutaneous Endoscopic Approach, +9 more

Same operation — other Approach

Same table and root operation, differing only in the approach character.

027T0ZZ — Dilation of Left Pulmonary Vein, Open Approach, 027T3ZZ — Dilation of Left Pulmonary Vein, Percutaneous Approach

Same operation — other Device

Same table and root operation, differing only in the device character.

027T44Z — Dilation of Left Pulmonary Vein with Drug-eluting Intraluminal Device, Percutaneous Endoscopic Approach, 027T4DZ — Dilation of Left Pulmonary Vein with Intraluminal Device, Percutaneous Endoscopic Approach

Contextual Map

Every relationship of 027T4ZZ in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

PCS table

• 027[PCS table]
• Medical and Surgical — Section: Medical and Surgical [Section]: “Medical and Surgical”
• Heart and Great Vessels — Body System: Heart and Great Vessels [Body System]: “Heart and Great Vessels”
• Dilation — Operation: Dilation [Operation]: “Dilation”

MS-DRG participation

• DRG 252 — OTHER VASCULAR PROCEDURES WITH MCC [MS-DRG]: “OTHER VASCULAR PROCEDURES WITH MCC — Other Vascular Procedures (MDC 05)”
• DRG 253 — OTHER VASCULAR PROCEDURES WITH CC [MS-DRG]: “OTHER VASCULAR PROCEDURES WITH CC — Other Vascular Procedures (MDC 05)”
• DRG 254 — OTHER VASCULAR PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER VASCULAR PROCEDURES WITHOUT CC/MCC — Other Vascular Procedures (MDC 05)”

MDC crossing · diagnoses (1844)

• MDC 05 — Diseases and Disorders of the Circulatory System [MDC crossing]: “Diseases and Disorders of the Circulatory System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
• A36.81 — Diphtheritic cardiomyopathy [Same-MDC diagnosis]: “Diphtheritic cardiomyopathy — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
• A39.50 — Meningococcal carditis, unspecified [Same-MDC diagnosis]: “Meningococcal carditis, unspecified — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
• A39.51 — Meningococcal endocarditis [Same-MDC diagnosis]: “Meningococcal endocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
• A39.52 — Meningococcal myocarditis [Same-MDC diagnosis]: “Meningococcal myocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
• A39.53 — Meningococcal pericarditis [Same-MDC diagnosis]: “Meningococcal pericarditis — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
• and 1839 more

Nearest codes

• 02704ZZ — Dilation of Coronary Artery, One Artery, Percutaneous Endoscopic Approach [One axis away]
• 02714ZZ — Dilation of Coronary Artery, Two Arteries, Percutaneous Endoscopic Approach [One axis away]
• 02724ZZ — Dilation of Coronary Artery, Three Arteries, Percutaneous Endoscopic Approach [One axis away]
• 02734ZZ — Dilation of Coronary Artery, Four or More Arteries, Percutaneous Endoscopic Approach [One axis away]
• 027F4ZZ — Dilation of Aortic Valve, Percutaneous Endoscopic Approach [One axis away]
• 027G4ZZ — Dilation of Mitral Valve, Percutaneous Endoscopic Approach [One axis away]
• 027H4ZZ — Dilation of Pulmonary Valve, Percutaneous Endoscopic Approach [One axis away]
• 027J4ZZ — Dilation of Tricuspid Valve, Percutaneous Endoscopic Approach [One axis away]