0W21XYZChange Other Device in Cranial Cavity, External Approach

Medical and Surgical›Anatomical Regions, General›Change

Billable / Specific Code

ICD-10-PCS 0W21XYZ

CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.

0W21XYZ is a billable ICD-10-PCS procedure code for Change Other Device in Cranial Cavity, External Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The root operation Change involves taking out or off a device from a body part and putting back an identical or similar device in or on the same body part without cutting or puncturing the skin or a mucous membrane.

Code Identity

ICD-10-PCS Code

0W21XYZ

Billable Status

Yes — Valid for Submission

Code Describes

Change Other Device in Cranial Cavity, External Approach

Parent Code

0W2

Short Description

Change Other Device in Cranial Cavity, External 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.

Position	Designation	Value	Meaning
1	Section	0	Medical and Surgical
2	Body System	W	Anatomical Regions, General
3	Operation	2	Change
4	BodyPart	1	Cranial Cavity
5	Approach	X	External
6	Device	Y	Other Device
7	Qualifier	Z	No Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 0W21XYZ under the General Equivalence Mappings.

97.15

Approximate match.

Similar Procedure Codes

Questions About 0W21XYZ

Is 0W21XYZ a billable code?

Yes. 0W21XYZ is a complete seven-character ICD-10-PCS code, specific enough to report Change Other Device in Cranial Cavity, External Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 0W21XYZ mean?

0W21XYZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character W is the Body System (Anatomical Regions, General); the 3rd character 2 is the Operation (Change); the 4th character 1 is the BodyPart (Cranial Cavity); the 5th character X is the Approach (External); the 6th character Y is the Device (Other Device); the 7th character Z is the Qualifier (No Qualifier).

What is the ICD-9-PCS equivalent of 0W21XYZ?

Under the General Equivalence Mappings, Change Other Device in Cranial Cavity, External Approach crosswalks to ICD-9-PCS 97.15. The mapping is approximate, so confirm it fits the documentation.