4A1184GMonitoring of Peripheral Nervous Electrical Activity, Intraoperative, Via Natural or Artificial Opening Endoscopic

Measurement and Monitoring›Physiological Systems›Monitoring
  • Billable / Specific Code
ICD-10-PCS 4A1184G
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

4A1184G is a billable ICD-10-PCS procedure code for Monitoring of Peripheral Nervous Electrical Activity, Intraoperative, Via Natural or Artificial Opening Endoscopic. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Monitoring involves determining the level of a physiological or physical function repetitively over a period of time. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Monitoring of peripheral nerves.

Code Identity

ICD-10-PCS Code
4A1184G
Billable Status
Yes — Valid for Submission
Code Describes
Monitoring of Peripheral Nervous Electrical Activity, Intraoperative, Via Natural or Artificial Opening Endoscopic
Short Description
Monitoring of PNS Electr Activity, Intraop, Endo
Parent Code
4A1

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
5Approach8Via Natural or Artificial Opening Endoscopic
6Function/Device4Electrical Activity
7QualifierGIntraoperative

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

SPY PINPOINT fluorescence imaging system
Leads to this code's table
Intravascular fluorescence angiography (IFA)
Leads to this code's table
Monitoring, Peripheral Nervous, Conductivity, Motor
Leads to this code's table
SPY system intravascular fluorescence angiography
Leads to this code's table
Monitoring, Peripheral Nervous, Conductivity, Sensory
Leads to this code's table
Testing, Neurophysiologic monitoring, intra-operative
Leads to this code's table
Angiocardiography, SPY system intravascular fluorescence
Leads to this code's table
Monitoring, Peripheral Nervous, Electrical Activity, No Qualifier
Leads to this code's table
Monitoring, Peripheral Nervous, Electrical Activity, Intraoperative
Leads to this code's table
Assessment, Intravascular perfusion, using indocyanine green (ICG) dye
Leads to this code's table

To code monitoring of the motor conductivity peripheral nervous, open the FY 2027 ICD-10-PCS Alphabetic Index at Monitoring, then the subterms Peripheral Nervous, Conductivity, Motor. The index leads to table 4A1, where the approach, Function/Device and qualifier values shown in the breakdown above complete the seven-character code 4A1184G.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

MAM013
Monitoring of peripheral nerves
Clinical domain: Measurement and Monitoring

Code History

Replaces previously assigned code(s):
  • 4A1134G — Monitoring of PNS Electr Activity, Intraop, Perc Approach

Similar Procedure Codes

Questions About 4A1184G

Is 4A1184G a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Monitoring of Peripheral Nervous Electrical Activity, Intraoperative, Via Natural or Artificial Opening Endoscopic on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in 4A1184G mean?

The code 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 8 is the Approach (Via Natural or Artificial Opening Endoscopic); the 6th character 4 is the Function/Device (Electrical Activity); the 7th character G is the Qualifier (Intraoperative).