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ICD-10-PCS 2027 procedure code

0WCC4ZZExtirpation of Matter from Mediastinum, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Extirpation of Matter from Mediastinum, Perc Endo Approach

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0WCC4ZZ

0WCC4ZZ is the ICD-10-PCS code for a extirpation procedure on the mediastinum using a percutaneous endoscopic approach. In ICD-10-PCS, extirpation means taking or cutting out solid matter from a body part.

In plain terms, this corresponds to incision of mediastinum, the ICD-9-CM procedure title it maps to (34.1).

For a different body part, codes include 0WC14ZZ (cranial cavity), 0WC34ZZ (oral cavity and throat), 0WC44ZZ (upper jaw), 0WC54ZZ (lower jaw), 0WC94ZZ (right pleural cavity), 0WCB4ZZ (left pleural cavity) and 7 more.

The same procedure with a different approach is coded 0WCC0ZZ (open), 0WCC3ZZ (percutaneous) and 0WCCXZZ (external).

It is an operating-room procedure in the MS-DRG logic for DRG 166 (Other Respiratory System O.R. Procedures with MCC), DRG 167 (Other Respiratory System O.R. Procedures with CC), DRG 168 (Other Respiratory System O.R. Procedures without CC/MCC), DRG 361 (Other Circulatory System O.R. Procedures with MCC), DRG 362 (Other Circulatory System O.R. Procedures without MCC) and DRG 907 (Other O.R. Procedures for Injuries with MCC), under the surgical categories “Other Respiratory System O.R. Procedures”, “Other Circulatory System O.R. Procedures”, “Other O.R. Procedures for Injuries” and 1 more.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
WAnatomical Regions, General
3. Operation
CExtirpation

Taking or cutting out solid matter from a body part

The solid matter may be an abnormal byproduct of a biological function or a foreign body; it may be imbedded in a body part or in the lumen of a tubular body part. The solid matter may or may not have been previously broken into pieces

Includes: Thrombectomy, choledocholithotomy

4. Body Part
CMediastinum

Includes: Mediastinal cavity; Mediastinal space

5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 05 · Diseases and Disorders of the Circulatory System · Other Circulatory System O.R. Procedures

ICD-9-CM equivalent

Converter →
  • 34.1Incision of mediastinumapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 0WCC4ZZ

Is 0WCC4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0WCC4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WCC4ZZ an O.R. procedure?

Yes. 0WCC4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WCC4ZZ group to?

Depending on the principal diagnosis, 0WCC4ZZ can group to MS-DRG 166, MS-DRG 167, MS-DRG 168, MS-DRG 361, MS-DRG 362 and MS-DRG 907.

What is the ICD-9 procedure code for 0WCC4ZZ?

The CMS GEMs map 0WCC4ZZ to ICD-9-CM 34.1 (Incision of mediastinum).