Inpatient Procedure Code
0W9H40Z
Drainage of Retroperitoneum with Drainage Device, Percutaneous Endoscopic Approach
Drain of Retroperitoneum with Drain Dev, 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.
| Position | Value | Meaning |
|---|---|---|
| 1 | Section0 | Medical and Surgical |
| 2 | Body SystemW | Anatomical Regions, General |
| 3 | Root Operation9 | Drainage Taking or letting out fluids and/or gases from a body part |
| 4 | Body PartH | Retroperitoneum |
| 5 | Approach4 | Percutaneous Endoscopic |
| 6 | Device0 | Drainage 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 22 MS-DRGs:
- MDC 05 — Other Circulatory System O.R. Procedures: DRG 264
- MDC 06 — Other Digestive System O.R. Procedures: DRG 356, DRG 357, DRG 358
- MDC 07 — Other Hepatobiliary or Pancreas O.R. Procedures: DRG 423, DRG 424, DRG 425
- MDC 09 — Other Skin, Subcutaneous Tissue and Breast Procedures: DRG 579, DRG 580, DRG 581
- MDC 11 — Other Kidney and Urinary Tract Procedures: DRG 673, DRG 674, DRG 675
- MDC 17 — Lymphoma and Leukemia with Major O.R. Procedures: DRG 820, DRG 821, DRG 822
- MDC 17 — Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures: DRG 826, DRG 827, DRG 828
- MDC 21 — Other O.R. Procedures for Injuries: DRG 907, DRG 908, DRG 909
From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.
Contextual Map
Every relationship of 0W9H40Z 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
- 0W9[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 (22)
- DRG 264 — OTHER CIRCULATORY SYSTEM O.R. PROCEDURES [MS-DRG]: “OTHER CIRCULATORY SYSTEM O.R. PROCEDURES — Other Circulatory System O.R. Procedures (MDC 05)”
- DRG 356 — OTHER DIGESTIVE SYSTEM O.R. PROCEDURES WITH MCC [MS-DRG]: “OTHER DIGESTIVE SYSTEM O.R. PROCEDURES WITH MCC — Other Digestive System O.R. Procedures (MDC 06)”
- DRG 357 — OTHER DIGESTIVE SYSTEM O.R. PROCEDURES WITH CC [MS-DRG]: “OTHER DIGESTIVE SYSTEM O.R. PROCEDURES WITH CC — Other Digestive System O.R. Procedures (MDC 06)”
- DRG 358 — OTHER DIGESTIVE SYSTEM O.R. PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER DIGESTIVE SYSTEM O.R. PROCEDURES WITHOUT CC/MCC — Other Digestive System O.R. Procedures (MDC 06)”
- DRG 423 — OTHER HEPATOBILIARY OR PANCREAS O.R. PROCEDURES WITH MCC [MS-DRG]: “OTHER HEPATOBILIARY OR PANCREAS O.R. PROCEDURES WITH MCC — Other Hepatobiliary or Pancreas O.R. Procedures (MDC 07)”
- DRG 424 — OTHER HEPATOBILIARY OR PANCREAS O.R. PROCEDURES WITH CC [MS-DRG]: “OTHER HEPATOBILIARY OR PANCREAS O.R. PROCEDURES WITH CC — Other Hepatobiliary or Pancreas O.R. Procedures (MDC 07)”
- DRG 425 — OTHER HEPATOBILIARY OR PANCREAS O.R. PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER HEPATOBILIARY OR PANCREAS O.R. PROCEDURES WITHOUT CC/MCC — Other Hepatobiliary or Pancreas O.R. Procedures (MDC 07)”
- DRG 579 — OTHER SKIN, SUBCUTANEOUS TISSUE AND BREAST PROCEDURES WITH MCC [MS-DRG]: “OTHER SKIN, SUBCUTANEOUS TISSUE AND BREAST PROCEDURES WITH MCC — Other Skin, Subcutaneous Tissue and Breast Procedures (MDC 09)”
- and 14 more
MDC crossing · diagnoses (8778)
- 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.”
- MDC 06 — Diseases and Disorders of the Digestive System [MDC crossing]: “Diseases and Disorders of the Digestive 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 8773 more
Nearest codes
- 0W9040Z — Drainage of Head with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
- 0W9140Z — Drainage of Cranial Cavity with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
- 0W9240Z — Drainage of Face with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
- 0W9340Z — Drainage of Oral Cavity and Throat with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
- 0W9440Z — Drainage of Upper Jaw with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
- 0W9540Z — Drainage of Lower Jaw with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
- 0W9640Z — Drainage of Neck with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
- 0W9840Z — Drainage of Chest Wall with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
Change history
No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.