0WJC4ZZInspection of Mediastinum, Percutaneous Endoscopic Approach
- Billable / Specific Code
0WJC4ZZ is a billable ICD-10-PCS procedure code for Inspection of Mediastinum, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 17 MS-DRGs. The root operation Inspection involves visually and/or manually exploring a body part. The Alphabetic Index lists this code under Mediastinoscopy. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Mediastinal procedures, NEC.
Code Identity
PCS Table Breakdown
Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical |
| 2 | Body System | W | Anatomical Regions, General |
| 3 | Operation | J | Inspection |
| 4 | BodyPart | C | Mediastinum |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
In the ICD-10-PCS Alphabetic Index
The FY 2027 ICD-10-PCS Alphabetic Index refers to 0WJC4ZZ as Mediastinoscopy. These index entries lead to this code:
To code mediastinoscopy, open the FY 2027 ICD-10-PCS Alphabetic Index at Mediastinoscopy. The entry lists 0WJC4ZZ directly as a complete, billable code.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 0WJC4ZZ
Is 0WJC4ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Inspection of Mediastinum, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for mediastinoscopy?
The ICD-10-PCS Alphabetic Index lists Mediastinoscopy under code 0WJC4ZZ, Inspection of Mediastinum, Percutaneous Endoscopic Approach, billable on inpatient claims in fiscal year 2027.
What do the characters in 0WJC4ZZ mean?
The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character W is the Body System (Anatomical Regions, General); the 3rd character J is the Operation (Inspection); the 4th character C is the BodyPart (Mediastinum); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 0WJC4ZZ group to?
On an inpatient stay, Inspection of Mediastinum, Percutaneous Endoscopic Approach maps to MS-DRGs 143, 144, 145, 166, 167, 168, 361, 362, 802, 803, 804, 820, 821, 822, 826, 827, 828, with relative weights from 1.1267 to 6.2454. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 0WJC4ZZ?
Under the General Equivalence Mappings, Inspection of Mediastinum, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 34.22 (Mediastinoscopy). The mapping is approximate, so confirm it fits the documentation.
