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ICD-10-PCS 2027 procedure code

3E0Q0KZIntroduction of Other Diagnostic Substance into Cranial Cavity and Brain, Open Approach

✓ Valid for 2027

Short description: Introduce Oth Diagn Subst in Cran Cav/Brain, Open

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 3E0Q0KZ

3E0Q0KZ is the ICD-10-PCS code for a introduction procedure on the cranial cavity and brain using an open approach with other diagnostic substance. In ICD-10-PCS, introduction means putting in or on a therapeutic, diagnostic, nutritional, physiological, or prophylactic substance except blood or blood products.

In plain terms, this corresponds to other cranial puncture, the ICD-9-CM procedure title it maps to (01.09).

For a different body part, codes include 3E030KZ (peripheral vein), 3E040KZ (central vein), 3E050KZ (peripheral artery), 3E060KZ (central artery), 3E070KZ (coronary artery) and 3E080KZ (heart).

The same procedure with a different approach is coded 3E0Q3KZ (percutaneous).

With a different device, use 3E0Q03Z (anti-inflammatory), 3E0Q06Z (nutritional substance), 3E0Q07Z (electrolytic and water balance substance), 3E0Q0AZ (stem cells, embryonic), 3E0Q0BZ (anesthetic agent), 3E0Q0HZ (radioactive substance) and 2 more.

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It was added in FY2017, effective October 1, 2016.

What each character means

1. Section
3Administration
2. Body System
EPhysiological Systems and Anatomical Regions
3. Operation
0Introduction

Putting in or on a therapeutic, diagnostic, nutritional, physiological, or prophylactic substance except blood or blood products

4. Body System / Region
QCranial Cavity and Brain
5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Substance
KOther Diagnostic Substance
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different approach

ICD-9-CM equivalent

Converter →
  • 01.09Other cranial punctureapproximate

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
  • FY2017 (effective 10/1/2016): Added
  • No changes since FY2017.

Common questions about 3E0Q0KZ

Is 3E0Q0KZ a valid ICD-10-PCS code for 2027?

Yes. 3E0Q0KZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 3E0Q0KZ?

The CMS GEMs map 3E0Q0KZ to ICD-9-CM 01.09 (Other cranial puncture).