4A11X4GMonitoring of Peripheral Nervous Electrical Activity, Intraoperative, External Approach

Measurement and Monitoring›Physiological Systems›Monitoring
  • Billable / Specific Code
ICD-10-PCS 4A11X4G
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

4A11X4G is a billable ICD-10-PCS procedure code for Monitoring of Peripheral Nervous Electrical Activity, Intraoperative, External Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The root operation Monitoring involves determining the level of a physiological or physical function repetitively over a period of time.

Code Identity

ICD-10-PCS Code
4A11X4G
Billable Status
Yes — Valid for Submission
Code Describes
Monitoring of Peripheral Nervous Electrical Activity, Intraoperative, External Approach
Parent Code
4A1
Short Description
Monitoring of PNS Electr Activity, Intraop, Extern 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
1Section4Measurement and Monitoring
2Body SystemAPhysiological Systems
3Operation1Monitoring
4BodySystem1Peripheral Nervous
5ApproachXExternal
6Function/Device4Electrical Activity
7QualifierGIntraoperative

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 4A11X4G under the General Equivalence Mappings.

94
Approximate match.

Similar Procedure Codes

Questions About 4A11X4G

Is 4A11X4G a billable code?

Yes. 4A11X4G is a complete seven-character ICD-10-PCS code, specific enough to report Monitoring of Peripheral Nervous Electrical Activity, Intraoperative, External Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 4A11X4G mean?

4A11X4G breaks down character by character: the 1st character 4 is the Section (Measurement and Monitoring); the 2nd character A is the Body System (Physiological Systems); the 3rd character 1 is the Operation (Monitoring); the 4th character 1 is the BodySystem (Peripheral Nervous); the 5th character X is the Approach (External); the 6th character 4 is the Function/Device (Electrical Activity); the 7th character G is the Qualifier (Intraoperative).

What is the ICD-9-PCS equivalent of 4A11X4G?

Under the General Equivalence Mappings, Monitoring of Peripheral Nervous Electrical Activity, Intraoperative, External Approach crosswalks to ICD-9-PCS 94. The mapping is approximate, so confirm it fits the documentation.