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ICD-10-PCS 2027 procedure code

0WJ34ZZInspection of Oral Cavity and Throat, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Inspection of Oral Cavity and Throat, 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 0WJ34ZZ

0WJ34ZZ is the ICD-10-PCS code for a inspection procedure on the oral cavity and throat using a percutaneous endoscopic approach. In ICD-10-PCS, inspection means visually and/or manually exploring a body part.

In plain terms, this corresponds to other diagnostic procedures on oral cavity, the ICD-9-CM procedure title it maps to (27.29).

For a different body part, codes include 0WJ04ZZ (head), 0WJ14ZZ (cranial cavity), 0WJ24ZZ (face), 0WJ44ZZ (upper jaw), 0WJ54ZZ (lower jaw), 0WJ64ZZ (neck) and 16 more.

The same procedure with a different approach is coded 0WJ30ZZ (open), 0WJ33ZZ (percutaneous) and 0WJ3XZZ (external).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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
JInspection

Visually and/or manually exploring a body part

Visual exploration may be performed with or without optical instrumentation. Manual exploration may be performed directly or through intervening body layers

Includes: Diagnostic arthroscopy, exploratory laparotomy

4. Body Part
3Oral Cavity and Throat
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

ICD-9-CM equivalent

Converter →
  • 27.29Other diagnostic procedures on oral cavityapproximate

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 0WJ34ZZ

Is 0WJ34ZZ a valid ICD-10-PCS code for 2027?

Yes. 0WJ34ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0WJ34ZZ?

The CMS GEMs map 0WJ34ZZ to ICD-9-CM 27.29 (Other diagnostic procedures on oral cavity).