4B02XTZMeasurement of Cardiac Defibrillator, External Approach
- Billable / Specific Code
4B02XTZ is a billable ICD-10-PCS procedure code for Measurement of Cardiac Defibrillator, External Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Measurement involves determining the level of a physiological or physical function at a point in time. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Pacemaker and defibrillator interrogation.
Code Identity
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 | 4 | Measurement and Monitoring |
| 2 | Body System | B | Physiological Devices |
| 3 | Operation | 0 | Measurement |
| 4 | BodySystem | 2 | Cardiac |
| 5 | Approach | X | External |
| 6 | Function/Device | T | Defibrillator |
| 7 | Qualifier | Z | No Qualifier |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code measurement of the defibrillator cardiac, open the FY 2027 ICD-10-PCS Alphabetic Index at Measurement, then the subterms Cardiac, Defibrillator. The entry lists 4B02XTZ directly as a complete, billable code.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 4B02XTZ
Is 4B02XTZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Measurement of Cardiac Defibrillator, External Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for measurement of the defibrillator cardiac?
The FY 2027 ICD-10-PCS Alphabetic Index entry Measurement, Cardiac, Defibrillator is a direct entry for 4B02XTZ, Measurement of Cardiac Defibrillator, External Approach, billable on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 4B02XTZ mean?
The code breaks down character by character: the 1st character 4 is the Section (Measurement and Monitoring); the 2nd character B is the Body System (Physiological Devices); the 3rd character 0 is the Operation (Measurement); the 4th character 2 is the BodySystem (Cardiac); the 5th character X is the Approach (External); the 6th character T is the Function/Device (Defibrillator); the 7th character Z is the Qualifier (No Qualifier).
What is the ICD-9-PCS equivalent of 4B02XTZ?
Under the General Equivalence Mappings, Measurement of Cardiac Defibrillator, External Approach crosswalks to ICD-9-PCS 89.49 (Automatic implantable cardioverter/defibrillator (AICD) check). The mapping is approximate, so confirm it fits the documentation.
