Vagal Nerve Stimulator Status ICD-10 Code: Z96.82

Last updated: August 28, 2026

Quick Answer

The ICD-10 code for vagal nerve stimulator (VNS) status is Z96.82 (Presence of neurostimulator). Use it as a secondary code when the implanted device is relevant to the encounter. If the visit is specifically for programming or managing the device, use Z45.42 (Encounter for adjustment and management of neurostimulator) instead.

Primary Code Details

Code	Description	Billable
Z96.82	Presence of neurostimulator	Yes

Related Codes

Code	Description	Billable
Z45.42	Encounter for adjustment and management of neurostimulator	Yes
Z96.89	Presence of other specified functional implants	Yes
G40.919	Epilepsy, unspecified, intractable, without status epilepticus	Yes
F33.2	Major depressive disorder, recurrent severe without psychotic features	Yes

Documentation Requirements

Document the device type (vagal nerve stimulator) and that it is in place and functioning
Document the underlying condition the VNS treats (epilepsy, treatment-resistant depression)
For device-management visits, document interrogation findings and any programming changes
Note any device complications separately - these code to T85.x complication codes, not status codes

Common Coding Scenarios

Epilepsy Follow-up with VNS in Place

Documentation:

"Follow-up for intractable epilepsy. VNS implanted 2023, functioning well. Seizure frequency reduced."

Code:

G40.919 - Epilepsy, unspecified, intractable, without status epilepticus

Rationale:

The epilepsy is the primary diagnosis. Add Z96.82 as a secondary code to capture the neurostimulator status - it affects management and risk profile.

VNS Programming Visit

Documentation:

"Patient presents for scheduled VNS interrogation and output-current adjustment."

Code:

Z45.42 - Encounter for adjustment and management of neurostimulator

Rationale:

The encounter is specifically for device management, so Z45.42 is the first-listed code, with the underlying condition (e.g., epilepsy) coded additionally.

Frequently Asked Questions

What is the ICD-10 code for vagal nerve stimulator status?

Z96.82 (Presence of neurostimulator). It covers implanted neurostimulators including vagal nerve, deep brain, and spinal cord stimulators, used as a secondary code when the device is relevant to care.

When do I use Z45.42 instead of Z96.82?

Use Z45.42 when the encounter's purpose is adjusting, programming, or managing the stimulator itself. Use Z96.82 when the device is simply present as a status relevant to another encounter.

Can Z96.82 be a primary diagnosis?

Z96.82 is a status code and is nearly always secondary. For device-focused visits, Z45.42 is the appropriate first-listed code; for problem-focused visits, the underlying condition is sequenced first.

Related Resources

Last updated: August 2026. Code data reflects ICD-10-CM 2026 version. This guide is for educational purposes only. Always verify codes against current official guidelines.