Skip to content
Dx

ICD-10-PCS 2027 procedure code

00B84ZZExcision of Basal Ganglia, Percutaneous Endoscopic 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 00B84ZZ

00B84ZZ is the ICD-10-PCS code for a excision procedure on the basal ganglia using a percutaneous endoscopic approach. In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to operations on globus pallidus, the ICD-9-CM procedure title it maps to (01.42).

For a different body part, codes include 00B04ZZ (brain), 00B14ZZ (cerebral meninges), 00B24ZZ (dura mater), 00B64ZZ (cerebral ventricle), 00B74ZZ (cerebral hemisphere), 00B94ZZ (thalamus) and 20 more.

The same procedure with a different approach is coded 00B80ZZ (open) and 00B83ZZ (percutaneous).

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 2 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
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
8Basal Ganglia

Includes: Basal nuclei; Claustrum; Corpus striatum; Globus pallidus; Substantia nigra; Subthalamic nucleus

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
ZNo Qualifier

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 24 · Multiple Significant Trauma · Craniotomy for Multiple Significant Trauma

ICD-9-CM equivalent

Converter →
  • 01.42Operations on globus pallidusapproximate

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 00B84ZZ

Is 00B84ZZ a valid ICD-10-PCS code for 2027?

Yes. 00B84ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00B84ZZ an O.R. procedure?

Yes. 00B84ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 00B84ZZ group to?

Depending on the principal diagnosis, 00B84ZZ 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 00B84ZZ?

The CMS GEMs map 00B84ZZ to ICD-9-CM 01.42 (Operations on globus pallidus).