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ICD-10-PCS 2027 procedure code

0G900ZXDrainage of Pituitary Gland, Open Approach, Diagnostic

✓ 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 0G900ZX

0G900ZX is the ICD-10-PCS code for a drainage procedure on the pituitary gland using an open approach (qualifier: diagnostic). In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to biopsy of pituitary gland, unspecified approach, the ICD-9-CM procedure title it maps to (07.15).

For a different body part, codes include 0G910ZX (pineal body), 0G920ZX (left adrenal gland), 0G930ZX (right adrenal gland), 0G940ZX (bilateral adrenal glands), 0G960ZX (left carotid body), 0G970ZX (right carotid body) and 15 more.

The same procedure with a different approach is coded 0G903ZX (percutaneous) and 0G904ZX (percutaneous endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC), DRG 025 (Craniotomy and Endovascular Intracranial Procedures with MCC), DRG 026 (Craniotomy and Endovascular Intracranial Procedures with CC), DRG 027 (Craniotomy and Endovascular Intracranial Procedures without CC/MCC) and DRG 614 (Adrenal and Pituitary Procedures with CC/MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures” and “Adrenal and Pituitary 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
GEndocrine System
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
0Pituitary Gland

Includes: Adenohypophysis; Hypophysis; Neurohypophysis

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
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 10 · Endocrine, Nutritional and Metabolic Diseases and Disorders · Adrenal and Pituitary Procedures

ICD-9-CM equivalent

Converter →
  • 07.15Biopsy of pituitary gland, unspecified approachapproximate

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 0G900ZX

Is 0G900ZX a valid ICD-10-PCS code for 2027?

Yes. 0G900ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0G900ZX an O.R. procedure?

Yes. 0G900ZX is an O.R. procedure in MS-DRG v44.0.

What DRG does 0G900ZX group to?

Depending on the principal diagnosis, 0G900ZX can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 614.

What is the ICD-9 procedure code for 0G900ZX?

The CMS GEMs map 0G900ZX to ICD-9-CM 07.15 (Biopsy of pituitary gland, unspecified approach).