ICD-10-PCS 2027 procedure code
009D0ZXDrainage of Medulla Oblongata, Open Approach, Diagnostic
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 009D0ZX
009D0ZX is the ICD-10-PCS code for a drainage procedure on the medulla oblongata 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 open biopsy of brain, the ICD-9-CM procedure title it maps to (01.14).
For a different body part, codes include 00900ZX (brain), 00910ZX (cerebral meninges), 00920ZX (dura mater), 00930ZX (epidural space, intracranial), 00940ZX (subdural space, intracranial), 00950ZX (subarachnoid space, intracranial) and 24 more.
The same procedure with a different approach is coded 009D3ZX (percutaneous) and 009D4ZX (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 820 (Lymphoma and Leukemia with Major O.R. Procedures with MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures”, “Lymphoma and Leukemia with Major O.R. Procedures” 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
- 0Central Nervous System and Cranial Nerves
- 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
- DMedulla Oblongata
Includes: Myelencephalon
- 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 body part
Different approach
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 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 17 · Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms · Lymphoma and Leukemia with Major O.R. Procedures
MDC 17 · Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms · Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures
- 826Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCCRW 4.7581
- 827Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CCRW 2.3896
- 828Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCCRW 1.6955
ICD-9-CM equivalent
Converter →- 01.14Open biopsy of brainapproximate
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 009D0ZX
Is 009D0ZX a valid ICD-10-PCS code for 2027?
- Yes. 009D0ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 009D0ZX an O.R. procedure?
- Yes. 009D0ZX is an O.R. procedure in MS-DRG v44.0.
What DRG does 009D0ZX group to?
- Depending on the principal diagnosis, 009D0ZX can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 820.
What is the ICD-9 procedure code for 009D0ZX?
- The CMS GEMs map 009D0ZX to ICD-9-CM 01.14 (Open biopsy of brain).