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MS-DRG/MDC 05/264
MS-DRGSurgical

264

OTHER CIRCULATORY SYSTEM O.R. PROCEDURES

MS-DRG 264 groups Medicare inpatient hospital stays for: OTHER CIRCULATORY SYSTEM O.R. PROCEDURES. This is a surgical MS-DRG. It falls under MDC 05 (Diseases and Disorders of the Circulatory System).

Payment & Classification Data

Official CMS values from the current fiscal year's IPPS Final Rule.

Major Diagnostic CategoryMDC 05 — Diseases and Disorders of the Circulatory System
DRG TypeSurgical
Severity LevelN/A
Relative Weight3.3406
Relative Weight (10% Cap Applied)3.3406
Geometric Mean Length of Stay6.7 days
Arithmetic Mean Length of Stay9.7 days
Post-Acute Transfer DRGYes
Special Pay Transfer DRGNo

Defining Codes (FY2026)

1,447 procedure codes appear in its surgical logic (Other Circulatory System O.R. Procedures: 1,447): 015K0ZZ, 015K3ZZ, 015K4ZZ, 015L0ZZ, 015L3ZZ, 015L4ZZ, 015M0ZZ, 015M3ZZ, 015M4ZZ, 015N0ZZ, 015N3ZZ, 015N4ZZ and 1,435 more.

From the CMS MS-DRG Definitions Manual (Appendices B and E). Assignment also depends on severity, discharge status and the rest of the claim.

Contextual Map

Every relationship of 264 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.

Major Diagnostic Category

  • MDC 05 — Diseases and Disorders of the Circulatory System [MDC]

Defining procedures (1447)

  • 015K0ZZ — Destruction of Head and Neck Sympathetic Nerve, Open Approach [Grouper procedure]
  • 015K3ZZ — Destruction of Head and Neck Sympathetic Nerve, Percutaneous Approach [Grouper procedure]
  • 015K4ZZ — Destruction of Head and Neck Sympathetic Nerve, Percutaneous Endoscopic Approach [Grouper procedure]
  • 015L0ZZ — Destruction of Thoracic Sympathetic Nerve, Open Approach [Grouper procedure]
  • 015L3ZZ — Destruction of Thoracic Sympathetic Nerve, Percutaneous Approach [Grouper procedure]
  • 015L4ZZ — Destruction of Thoracic Sympathetic Nerve, Percutaneous Endoscopic Approach [Grouper procedure]
  • 015M0ZZ — Destruction of Abdominal Sympathetic Nerve, Open Approach [Grouper procedure]
  • 015M3ZZ — Destruction of Abdominal Sympathetic Nerve, Percutaneous Approach [Grouper procedure]
  • and 1439 more