4B00XW0Measurement of Central Nervous Cerebrospinal Fluid Shunt using Wireless Sensor, External Approach
- Billable / Specific Code
4B00XW0 is a billable ICD-10-PCS procedure code for Measurement of Central Nervous Cerebrospinal Fluid Shunt using Wireless Sensor, 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. The Alphabetic Index lists this code under FlowSense Noninvasive Thermal Sensor. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under ICP and other CNS monitoring (excluding EEG).
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 | 0 | Central Nervous |
| 5 | Approach | X | External |
| 6 | Function/Device | W | Cerebrospinal Fluid Shunt |
| 7 | Qualifier | 0 | Wireless Sensor |
In the ICD-10-PCS Alphabetic Index
The FY 2027 ICD-10-PCS Alphabetic Index refers to 4B00XW0 as FlowSense Noninvasive Thermal Sensor. These index entries lead to this code:
To code FlowSense noninvasive thermal sensor, open the FY 2027 ICD-10-PCS Alphabetic Index at FlowSense Noninvasive Thermal Sensor. The entry lists 4B00XW0 directly as a complete, billable code.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Similar Procedure Codes
Questions About 4B00XW0
Is 4B00XW0 a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Measurement of Central Nervous Cerebrospinal Fluid Shunt using Wireless Sensor, External Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for FlowSense Noninvasive Thermal Sensor?
The ICD-10-PCS Alphabetic Index lists FlowSense Noninvasive Thermal Sensor under code 4B00XW0, Measurement of Central Nervous Cerebrospinal Fluid Shunt using Wireless Sensor, External Approach, billable on inpatient claims in fiscal year 2027.
What do the characters in 4B00XW0 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 0 is the BodySystem (Central Nervous); the 5th character X is the Approach (External); the 6th character W is the Function/Device (Cerebrospinal Fluid Shunt); the 7th character 0 is the Qualifier (Wireless Sensor).
