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ICD-10-PCS 2027 procedure code

0WFC4ZZFragmentation in Mediastinum, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Fragmentation in 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 0WFC4ZZ

0WFC4ZZ is the ICD-10-PCS code for a fragmentation procedure on the mediastinum using a percutaneous endoscopic approach. In ICD-10-PCS, fragmentation means breaking solid matter in a body part into pieces.

In plain terms, this corresponds to other operations on thorax, the ICD-9-CM procedure title it maps to (34.99).

For a different body part, codes include 0WF14ZZ (cranial cavity), 0WF34ZZ (oral cavity and throat), 0WF94ZZ (right pleural cavity), 0WFB4ZZ (left pleural cavity), 0WFD4ZZ (pericardial cavity), 0WFG4ZZ (peritoneal cavity) and 4 more.

The same procedure with a different approach is coded 0WFC0ZZ (open), 0WFC3ZZ (percutaneous) and 0WFCXZZ (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 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Other Respiratory System O.R. Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

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
FFragmentation

Breaking solid matter in a body part into pieces

Physical force (e.g., manual, ultrasonic) applied directly or indirectly is used to break the solid matter into pieces. The solid matter may be an abnormal byproduct of a biological function or a foreign body. The pieces of solid matter are not taken out

Includes: Extracorporeal shockwave lithotripsy, transurethral lithotripsy

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.

ICD-9-CM equivalent

Converter →
  • 34.99Other operations on thoraxapproximate

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 0WFC4ZZ

Is 0WFC4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0WFC4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WFC4ZZ an O.R. procedure?

Yes. 0WFC4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WFC4ZZ group to?

Depending on the principal diagnosis, 0WFC4ZZ can group to MS-DRG 166, MS-DRG 167, MS-DRG 168, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 0WFC4ZZ?

The CMS GEMs map 0WFC4ZZ to ICD-9-CM 34.99 (Other operations on thorax).