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ICD-10-PCS 2027 procedure code

0NBQ4ZXExcision of Left Orbit, Percutaneous Endoscopic Approach, Diagnostic

✓ Valid for 2027O.R. procedure

Short description: Excision of Left Orbit, Perc Endo Approach, Diagn

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 0NBQ4ZX

0NBQ4ZX is the ICD-10-PCS code for a excision procedure on the left orbit 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 eyeball and orbit, the ICD-9-CM procedure title it maps to (16.23).

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 0NBQ0ZX (open) and 0NBQ3ZX (percutaneous).

It is an operating-room procedure in the MS-DRG logic for DRG 113 (Orbital Procedures with CC/MCC) and DRG 114 (Orbital Procedures without CC/MCC), under the surgical category “Orbital Procedures”.

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
QOrbit, Left

Includes: Bony orbit; Orbital portion of ethmoid bone; Orbital portion of frontal bone; Orbital portion of lacrimal bone; Orbital portion of maxilla; Orbital portion of palatine bone; Orbital portion of sphenoid bone; Orbital portion of zygomatic bone

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

MS-DRG v44.0 grouping

All DRGs →

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

MDC 02 · Diseases and Disorders of the Eye · Orbital Procedures

ICD-9-CM equivalent

Converter →
  • 16.23Biopsy of eyeball and orbitapproximate

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 0NBQ4ZX

Is 0NBQ4ZX a valid ICD-10-PCS code for 2027?

Yes. 0NBQ4ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NBQ4ZX an O.R. procedure?

Yes. 0NBQ4ZX is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NBQ4ZX group to?

Depending on the principal diagnosis, 0NBQ4ZX can group to MS-DRG 113 and MS-DRG 114.

What is the ICD-9 procedure code for 0NBQ4ZX?

The CMS GEMs map 0NBQ4ZX to ICD-9-CM 16.23 (Biopsy of eyeball and orbit).