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ICD-10-PCS 2027 procedure code

00520ZZDestruction of Dura Mater, Open 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 00520ZZ

00520ZZ is the ICD-10-PCS code for a destruction procedure on the dura mater using an open approach. 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.

In plain terms, this corresponds to excision of lesion or tissue of cerebral meninges, the ICD-9-CM procedure title it maps to (01.51).

For a different body part, codes include 00500ZZ (brain), 00510ZZ (cerebral meninges), 00560ZZ (cerebral ventricle), 00570ZZ (cerebral hemisphere), 00580ZZ (basal ganglia), 00590ZZ (thalamus) and 20 more.

The same procedure with a different approach is coded 00523ZZ (percutaneous) and 00524ZZ (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 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
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
2Dura Mater

Includes: Diaphragma sellae; Dura mater, intracranial; Falx cerebri; Tentorium cerebelli

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
ZNo Qualifier

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

ICD-9-CM equivalent

Converter →
  • 01.51Excision of lesion or tissue of cerebral meningesapproximate

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 00520ZZ

Is 00520ZZ a valid ICD-10-PCS code for 2027?

Yes. 00520ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00520ZZ an O.R. procedure?

Yes. 00520ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 00520ZZ group to?

Depending on the principal diagnosis, 00520ZZ 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 00520ZZ?

The CMS GEMs map 00520ZZ to ICD-9-CM 01.51 (Excision of lesion or tissue of cerebral meninges).