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ICD-10-PCS 2027 procedure code

0NBR4ZXExcision of Maxilla, Percutaneous Endoscopic Approach, Diagnostic

✓ Valid for 2027

Short description: Excision of Maxilla, Percutaneous Endoscopic Approach, Diagn

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0NBR4ZX

0NBR4ZX is the ICD-10-PCS code for a excision procedure on the maxilla using a percutaneous endoscopic approach (qualifier: diagnostic). In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to biopsy of alveolus and biopsy of facial bone, the ICD-9-CM procedure titles it maps to (24.12 and 76.11).

For a different body part, codes include 0NB04ZX (skull), 0NB14ZX (frontal bone), 0NB34ZX (right parietal bone), 0NB44ZX (left parietal bone), 0NB54ZX (right temporal bone), 0NB64ZX (left temporal bone) and 16 more.

The same procedure with a different approach is coded 0NBR0ZX (open) and 0NBR3ZX (percutaneous).

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
NHead and Facial Bones
3. Operation
BExcision

Cutting out or off, without replacement, a portion of a body part

The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies

Includes: Partial nephrectomy, liver biopsy

4. Body Part
RMaxilla

Includes: Alveolar process of maxilla

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
XDiagnostic

Other versions of this procedure

Different qualifier

ICD-9-CM equivalent

Converter →
  • 24.12Biopsy of alveolusapproximate
  • 76.11Biopsy of facial boneapproximate

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)
  • FY2018 (effective 10/1/2017): Title revised — was “Excision of Right Maxilla, Percutaneous Endoscopic Approach, Diagnostic”

Common questions about 0NBR4ZX

Is 0NBR4ZX a valid ICD-10-PCS code for 2027?

Yes. 0NBR4ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0NBR4ZX?

The CMS GEMs map 0NBR4ZX to ICD-9-CM 24.12 (Biopsy of alveolus) and 76.11 (Biopsy of facial bone).