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ICD-10-PCS 2027 procedure code

00503Z4Destruction of Brain using Stereoelectroencephalographic Radiofrequency Ablation, Percutaneous Approach

✓ Valid for 2027O.R. procedure

Short description: Destruction of Brain using sEEG Ablation, Perc Approach

Code last changed in FY2025 (effective October 1, 2024). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 00503Z4

00503Z4 is the ICD-10-PCS code for a destruction procedure on the brain using a percutaneous approach (qualifier: stereoelectroencephalographic radiofrequency ablation). In ICD-10-PCS, destruction means physical eradication of all or a portion of a body part by the direct use of energy, force, or a destructive agent.

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 3 more.

It was added in FY2025, effective October 1, 2024.

What each character means

1. Section
0Medical and Surgical
2. Body System
0Central Nervous System and Cranial Nerves
3. Operation
5Destruction

Physical eradication of all or a portion of a body part by the direct use of energy, force, or a destructive agent

None of the body part is physically taken out

Includes: Fulguration of rectal polyp, cautery of skin lesion

4. Body Part
0Brain

Includes: Cerebrum; Corpus callosum; Encephalon

5. Approach
3Percutaneous

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure

6. Device
ZNo Device
7. Qualifier
4Stereoelectroencephalographic Radiofrequency Ablation

Other versions of this procedure

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

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
  • FY2025 (effective 10/1/2024): Added
  • No changes since FY2025.

Common questions about 00503Z4

Is 00503Z4 a valid ICD-10-PCS code for 2027?

Yes. 00503Z4 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00503Z4 an O.R. procedure?

Yes. 00503Z4 is an O.R. procedure in MS-DRG v44.0.

What DRG does 00503Z4 group to?

Depending on the principal diagnosis, 00503Z4 can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 820.