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ICD-10-PCS 2027 procedure code

00N73ZZRelease Cerebral Hemisphere, Percutaneous 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 00N73ZZ

00N73ZZ is the ICD-10-PCS code for a release procedure on the cerebral hemisphere using a percutaneous approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.

In plain terms, this corresponds to lysis of cortical adhesions, the ICD-9-CM procedure title it maps to (02.91).

For a different body part, codes include 00N03ZZ (brain), 00N13ZZ (cerebral meninges), 00N23ZZ (dura mater), 00N63ZZ (cerebral ventricle), 00N83ZZ (basal ganglia), 00N93ZZ (thalamus) and 20 more.

The same procedure with a different approach is coded 00N70ZZ (open) and 00N74ZZ (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 3 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
NRelease

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Some of the restraining tissue may be taken out but none of the body part is taken out

Includes: Adhesiolysis, carpal tunnel release

4. Body Part
7Cerebral Hemisphere

Includes: Frontal lobe; Occipital lobe; Parietal lobe; Temporal lobe

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
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.

ICD-9-CM equivalent

Converter →
  • 02.91Lysis of cortical adhesionsapproximate

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 00N73ZZ

Is 00N73ZZ a valid ICD-10-PCS code for 2027?

Yes. 00N73ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00N73ZZ an O.R. procedure?

Yes. 00N73ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 00N73ZZ group to?

Depending on the principal diagnosis, 00N73ZZ 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 00N73ZZ?

The CMS GEMs map 00N73ZZ to ICD-9-CM 02.91 (Lysis of cortical adhesions).