Inpatient Procedure Code
0WJC4ZZ
Inspection of Mediastinum, Percutaneous Endoscopic 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 OperationJ | Inspection Visually and/or manually exploring a body part |
| 4 | Body PartC | Mediastinum |
| 5 | Approach4 | Percutaneous Endoscopic |
| 6 | DeviceZ | No 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 16 MS-DRGs:
- MDC 03 — Other Ear, Nose, Mouth and Throat O.R. Procedures: DRG 143, DRG 144, DRG 145
- MDC 04 — Other Respiratory System O.R. Procedures: DRG 166, DRG 167, DRG 168
- MDC 05 — Other Circulatory System O.R. Procedures: DRG 264
- MDC 16 — Other O.R. Procedures of the Blood and Blood Forming Organs: DRG 802, DRG 803, DRG 804
- 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
From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.
Contextual Map
Every relationship of 0WJC4ZZ 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
- 0WJ[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 (16)
- DRG 143 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”
- DRG 144 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”
- DRG 145 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”
- DRG 166 — OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITH MCC [MS-DRG]: “OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITH MCC — Other Respiratory System O.R. Procedures (MDC 04)”
- DRG 167 — OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITH CC [MS-DRG]: “OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITH CC — Other Respiratory System O.R. Procedures (MDC 04)”
- DRG 168 — OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITHOUT CC/MCC — Other Respiratory System O.R. Procedures (MDC 04)”
- 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 802 — OTHER O.R. PROCEDURES OF THE BLOOD AND BLOOD FORMING ORGANS WITH MCC [MS-DRG]: “OTHER O.R. PROCEDURES OF THE BLOOD AND BLOOD FORMING ORGANS WITH MCC — Other O.R. Procedures of the Blood and Blood Forming Organs (MDC 16)”
- and 8 more
MDC crossing · diagnoses (4342)
- MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat [MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — 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 04 — Diseases and Disorders of the Respiratory System [MDC crossing]: “Diseases and Disorders of the Respiratory 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.”
- A18.6 — Tuberculosis of (inner) (middle) ear [Same-MDC diagnosis]: “Tuberculosis of (inner) (middle) ear — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
- A36.0 — Pharyngeal diphtheria [Same-MDC diagnosis]: “Pharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
- A36.1 — Nasopharyngeal diphtheria [Same-MDC diagnosis]: “Nasopharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
- A36.2 — Laryngeal diphtheria [Same-MDC diagnosis]: “Laryngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
- A54.5 — Gonococcal pharyngitis [Same-MDC diagnosis]: “Gonococcal pharyngitis — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
- and 4337 more
Nearest codes
- 0WJ04ZZ — Inspection of Head, Percutaneous Endoscopic Approach [One axis away]
- 0WJ14ZZ — Inspection of Cranial Cavity, Percutaneous Endoscopic Approach [One axis away]
- 0WJ24ZZ — Inspection of Face, Percutaneous Endoscopic Approach [One axis away]
- 0WJ34ZZ — Inspection of Oral Cavity and Throat, Percutaneous Endoscopic Approach [One axis away]
- 0WJ44ZZ — Inspection of Upper Jaw, Percutaneous Endoscopic Approach [One axis away]
- 0WJ54ZZ — Inspection of Lower Jaw, Percutaneous Endoscopic Approach [One axis away]
- 0WJ64ZZ — Inspection of Neck, Percutaneous Endoscopic Approach [One axis away]
- 0WJ84ZZ — Inspection of Chest Wall, Percutaneous Endoscopic Approach [One axis away]
Change history
No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.