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ICD-10-PCS 2027 procedure code

00H641ZInsertion of Radioactive Element into Cerebral Ventricle, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Insert of Radioact Elem into Cereb Vent, Perc Endo Approach

Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 00H641Z

00H641Z is the ICD-10-PCS code for a insertion procedure on the cerebral ventricle using a percutaneous endoscopic approach with radioactive element. In ICD-10-PCS, insertion means putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.

For a different body part, codes include 00H041Z (brain), 00HE41Z (cranial nerve), 00HU41Z (spinal canal) and 00HV41Z (spinal cord).

The same procedure with a different approach is coded 00H601Z (open) and 00H631Z (percutaneous).

With a different device, use 00H642Z (monitoring device), 00H643Z (infusion device), 00H64MZ (neurostimulator lead) and 00H64YZ (other device).

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 907 (Other O.R. Procedures for Injuries with MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures”, “Other O.R. Procedures for Injuries” and 1 more.

It was added in FY2021, effective October 1, 2020.

What each character means

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

Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part

Includes: Insertion of radioactive implant, insertion of central venous catheter

4. Body Part
6Cerebral Ventricle

Includes: Aqueduct of Sylvius; Cerebral aqueduct (Sylvius); Choroid plexus; Ependyma; Foramen of Monro (intraventricular); Fourth ventricle; Interventricular foramen (Monro); Left lateral ventricle; Right lateral ventricle; Third ventricle

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
1Radioactive Element

Includes: Brachytherapy seeds; CivaSheet(R)

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

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
  • FY2021 (effective 10/1/2020): Added
  • No changes since FY2021.

Common questions about 00H641Z

Is 00H641Z a valid ICD-10-PCS code for 2027?

Yes. 00H641Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00H641Z an O.R. procedure?

Yes. 00H641Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 00H641Z group to?

Depending on the principal diagnosis, 00H641Z can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 907.