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Inpatient Procedure Code

0SWD44Z

Revision of Internal Fixation Device in Left Knee Joint, Percutaneous Endoscopic Approach

Revision of Int Fix in L Knee Jt, Perc Endo Approach

Axis Breakdown

Every ICD-10-PCS code is exactly seven characters, one per axis. Each character's meaning is defined by its position in the code.

PositionValueMeaning
1
Section0

Medical and Surgical

2
Body SystemS

Lower Joints

3
Root OperationW

Revision

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

4
Body PartD

Knee Joint, Left

5
Approach4

Percutaneous Endoscopic

6
Device4

Internal Fixation Device

7
QualifierZ

No Qualifier

Potential MS-DRG Relationships (FY2026)

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 8 MS-DRGs:

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.

0SW844Z — Revision of Internal Fixation Device in Left Sacroiliac Joint, Percutaneous Endoscopic Approach, 0SW944Z — Revision of Internal Fixation Device in Right Hip Joint, Percutaneous Endoscopic Approach, 0SWB44Z — Revision of Internal Fixation Device in Left Hip Joint, Percutaneous Endoscopic Approach, 0SWC44Z — Revision of Internal Fixation Device in Right Knee Joint, Percutaneous Endoscopic Approach, 0SWF44Z — Revision of Internal Fixation Device in Right Ankle Joint, Percutaneous Endoscopic Approach, 0SWG44Z — Revision of Internal Fixation Device in Left Ankle Joint, Percutaneous Endoscopic Approach, 0SWH44Z — Revision of Internal Fixation Device in Right Tarsal Joint, Percutaneous Endoscopic Approach, 0SWJ44Z — Revision of Internal Fixation Device in Left Tarsal Joint, Percutaneous Endoscopic Approach, +11 more

Same operation — other Approach

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

0SWD04Z — Revision of Internal Fixation Device in Left Knee Joint, Open Approach, 0SWD34Z — Revision of Internal Fixation Device in Left Knee Joint, Percutaneous Approach, 0SWDX4Z — Revision of Internal Fixation Device in Left Knee Joint, External Approach

Same operation — other Device

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

0SWD40Z — Revision of Drainage Device in Left Knee Joint, Percutaneous Endoscopic Approach, 0SWD43Z — Revision of Infusion Device in Left Knee Joint, Percutaneous Endoscopic Approach, 0SWD45Z — Revision of External Fixation Device in Left Knee Joint, Percutaneous Endoscopic Approach, 0SWD47Z — Revision of Autologous Tissue Substitute in Left Knee Joint, Percutaneous Endoscopic Approach, 0SWD48Z — Revision of Spacer in Left Knee Joint, Percutaneous Endoscopic Approach, 0SWD4JZ — Revision of Synthetic Substitute in Left Knee Joint, Percutaneous Endoscopic Approach, 0SWD4KZ — Revision of Nonautologous Tissue Substitute in Left Knee Joint, Percutaneous Endoscopic Approach

Contextual Map

Every relationship of 0SWD44Z 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

  • 0SW[PCS table]
  • [object Object] — Section: [object Object] [Section]: “[object Object]”
  • [object Object] — Body System: [object Object] [Body System]: “[object Object]”
  • [object Object] — Operation: [object Object] [Operation]: “[object Object]”

MS-DRG participation

  • DRG 485 — KNEE PROCEDURES WITH PRINCIPAL DIAGNOSIS OF INFECTION WITH MCC [MS-DRG]
  • DRG 486 — KNEE PROCEDURES WITH PRINCIPAL DIAGNOSIS OF INFECTION WITH CC [MS-DRG]
  • DRG 487 — KNEE PROCEDURES WITH PRINCIPAL DIAGNOSIS OF INFECTION WITHOUT CC/MCC [MS-DRG]
  • DRG 488 — KNEE PROCEDURES WITHOUT PRINCIPAL DIAGNOSIS OF INFECTION WITH CC/MCC [MS-DRG]: “KNEE PROCEDURES WITHOUT PRINCIPAL DIAGNOSIS OF INFECTION WITH CC/MCC — Knee Procedures without Principal Diagnosis of Infection (MDC 08)”
  • DRG 489 — KNEE PROCEDURES WITHOUT PRINCIPAL DIAGNOSIS OF INFECTION WITHOUT CC/MCC [MS-DRG]: “KNEE PROCEDURES WITHOUT PRINCIPAL DIAGNOSIS OF INFECTION WITHOUT CC/MCC — Knee Procedures without Principal Diagnosis of Infection (MDC 08)”
  • DRG 907 — OTHER O.R. PROCEDURES FOR INJURIES WITH MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH MCC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 908 — OTHER O.R. PROCEDURES FOR INJURIES WITH CC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH CC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 909 — OTHER O.R. PROCEDURES FOR INJURIES WITHOUT CC/MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITHOUT CC/MCC — Other O.R. Procedures for Injuries (MDC 21)”

MDC crossing · diagnoses (31735)

  • MDC 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue [MDC crossing]: “Diseases and Disorders of the Musculoskeletal System and Connective Tissue — 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.”
  • MDC 21 — Injuries, Poisonings and Toxic Effects of Drugs [MDC crossing]: “Injuries, Poisonings and Toxic Effects of Drugs — 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.”
  • A02.23 — Salmonella arthritis [Same-MDC diagnosis]: “Salmonella arthritis — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A02.24 — Salmonella osteomyelitis [Same-MDC diagnosis]: “Salmonella osteomyelitis — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A18.01 — Tuberculosis of spine [Same-MDC diagnosis]: “Tuberculosis of spine — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A18.02 — Tuberculous arthritis of other joints [Same-MDC diagnosis]: “Tuberculous arthritis of other joints — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A18.03 — Tuberculosis of other bones [Same-MDC diagnosis]: “Tuberculosis of other bones — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • and 31730 more

Nearest codes

  • 0SW044Z — Revision of Internal Fixation Device in Lumbar Vertebral Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0SW344Z — Revision of Internal Fixation Device in Lumbosacral Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0SW544Z — Revision of Internal Fixation Device in Sacrococcygeal Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0SW644Z — Revision of Internal Fixation Device in Coccygeal Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0SW744Z — Revision of Internal Fixation Device in Right Sacroiliac Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0SW844Z — Revision of Internal Fixation Device in Left Sacroiliac Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0SW944Z — Revision of Internal Fixation Device in Right Hip Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0SWB44Z — Revision of Internal Fixation Device in Left Hip Joint, Percutaneous Endoscopic Approach [One axis away]

Change history

No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.