ICD-10-PCS 2027 procedure code
0G9100ZDrainage of Pineal Body with Drainage Device, Open 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 0G9100Z
0G9100Z is the ICD-10-PCS code for a drainage procedure on the pineal body 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 incision of pineal gland, the ICD-9-CM procedure title it maps to (07.52).
For a different body part, codes include 0G9000Z (pituitary gland), 0G9200Z (left adrenal gland), 0G9300Z (right adrenal gland), 0G9400Z (bilateral adrenal glands), 0G9600Z (left carotid body), 0G9700Z (right carotid body) and 15 more.
The same procedure with a different approach is coded 0G9130Z (percutaneous) and 0G9140Z (percutaneous endoscopic).
With a different device, use 0G910ZZ (no device).
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
- 1Pineal Body
- 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 body part
- 0G9000ZPituitary Gland
- 0G9200ZAdrenal Gland, Left
- 0G9300ZAdrenal Gland, Right
- 0G9400ZAdrenal Glands, Bilateral
- 0G9600ZCarotid Body, Left
- 0G9700ZCarotid Body, Right
- 0G9800ZCarotid Bodies, Bilateral
- 0G9900ZPara-aortic Body
- 0G9B00ZCoccygeal Glomus
- 0G9C00ZGlomus Jugulare
- 0G9D00ZAortic Body
- 0G9F00ZParaganglion Extremity
Different approach
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 01 · Diseases and Disorders of the Nervous System · Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis
MDC 01 · Diseases and Disorders of the Nervous System · Craniotomy and endovascular intracranial procedures
MDC 10 · Endocrine, Nutritional and Metabolic Diseases and Disorders · Adrenal and Pituitary Procedures
ICD-9-CM equivalent
Converter →- 07.52Incision of pineal glandapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 0G9100Z
Is 0G9100Z a valid ICD-10-PCS code for 2027?
- Yes. 0G9100Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0G9100Z an O.R. procedure?
- Yes. 0G9100Z is an O.R. procedure in MS-DRG v44.0.
What DRG does 0G9100Z group to?
- Depending on the principal diagnosis, 0G9100Z 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 0G9100Z?
- The CMS GEMs map 0G9100Z to ICD-9-CM 07.52 (Incision of pineal gland).