00KA0ZZMap Hypothalamus, Open Approach

  • Billable / Specific Code
ICD-10-PCS 00KA0ZZ
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

00KA0ZZ is a billable ICD-10-PCS procedure code for Map Hypothalamus, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 17 MS-DRGs. The root operation Map involves locating the route of passage of electrical impulses and/or locating functional areas in a body part.

Code Identity

ICD-10-PCS Code
00KA0ZZ
Billable Status
Yes — Valid for Submission
Code Describes
Map Hypothalamus, Open Approach
Parent Code
Short Description
Map Hypothalamus, Open Approach

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1Section0Medical and Surgical
2Body System0Central Nervous System and Cranial Nerves
3OperationKMap
4BodyPartAHypothalamus
5Approach0Open
6DeviceZNo Device
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 00KA0ZZ under the General Equivalence Mappings.

11.8
Approximate match.

Similar Procedure Codes

Questions About 00KA0ZZ

Is 00KA0ZZ a billable code?

Yes. 00KA0ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Map Hypothalamus, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 00KA0ZZ mean?

00KA0ZZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 0 is the Body System (Central Nervous System and Cranial Nerves); the 3rd character K is the Operation (Map); the 4th character A is the BodyPart (Hypothalamus); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 00KA0ZZ group to?

On an inpatient stay, Map Hypothalamus, Open Approach maps to MS-DRGs 023, 024, 025, 026, 027, 820, 821, 822, 826, 827, 828, 907, 908, 909, 957, 958, 959, with relative weights from 1.2040 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 00KA0ZZ?

Under the General Equivalence Mappings, Map Hypothalamus, Open Approach crosswalks to ICD-9-PCS 11.8. The mapping is approximate, so confirm it fits the documentation.