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ICD-10-PCS 2027 procedure code

0N9P00ZDrainage of Right Orbit with Drainage Device, Open Approach

✓ Valid for 2027O.R. procedure

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 0N9P00Z

0N9P00Z is the ICD-10-PCS code for a drainage procedure on the right orbit using an open approach with drainage device. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to other orbitotomy, the ICD-9-CM procedure title it maps to (16.09).

For a different body part, codes include 0N9000Z (skull), 0N9100Z (frontal bone), 0N9300Z (right parietal bone), 0N9400Z (left parietal bone), 0N9500Z (right temporal bone), 0N9600Z (left temporal bone) and 16 more.

The same procedure with a different approach is coded 0N9P30Z (percutaneous) and 0N9P40Z (percutaneous endoscopic).

With a different device, use 0N9P0ZZ (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 113 (Orbital Procedures with CC/MCC), DRG 114 (Orbital Procedures without CC/MCC), DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC), DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC) and DRG 907 (Other O.R. Procedures for Injuries with MCC), under the surgical categories “Orbital Procedures”, “Other Ear, Nose, Mouth and Throat 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
NHead and Facial Bones
3. Operation
9Drainage

Taking or letting out fluids and/or gases from a body part

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

Includes: Thoracentesis, incision and drainage

4. Body Part
POrbit, Right
5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different device

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 →
  • 16.09Other orbitotomyapproximate

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 0N9P00Z

Is 0N9P00Z a valid ICD-10-PCS code for 2027?

Yes. 0N9P00Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0N9P00Z an O.R. procedure?

Yes. 0N9P00Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0N9P00Z group to?

Depending on the principal diagnosis, 0N9P00Z can group to MS-DRG 113, MS-DRG 114, MS-DRG 143, MS-DRG 144, MS-DRG 145 and MS-DRG 907.

What is the ICD-9 procedure code for 0N9P00Z?

The CMS GEMs map 0N9P00Z to ICD-9-CM 16.09 (Other orbitotomy).