S64.92XA: Injury of unspecified nerve at wrist and hand level of left arm, initial encounter
S64.92XA, injury of unspecified nerve at wrist and hand level of left arm, initial encounter, is listed as a covered diagnosis in 7 Medicare billing and coding articles that apply to 4 HCPCS Level II codes, including G0283 (Electrical stimulation (unattended), to one or more areas…), G0453 (Continuous intraoperative neurophysiology monitoring, from…), G0255 (Current perception threshold/sensory nerve conduction…). The articles come from 6 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with S64.92XA as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| G0283 | Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care | Carrier judgment | — | 1 |
| G0453 | Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure) | Carrier judgment | — | 1 |
| G0255 | Current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve | Non-covered by Medicare | Not covered | 5 |
| G0282 | Electrical stimulation, (unattended), to one or more areas, for wound care other than described in g0281 | Non-covered by Medicare | Not covered | 1 |
Medicare policy articles listing S64.92XA
- A56034: Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathy (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L35456
- A56722: Billing and Coding: Intraoperative Neurophysiological Testing (Novitas Solutions, Inc. (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34623, L35003
- A57307: Billing and Coding: Nerve Conduction Studies and Electromyography (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57478: Billing and Coding: Nerve Conduction Studies and Electromyography (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A54969: Billing and Coding: Nerve Conduction Studies and Electromyography (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57668: Billing and Coding: Nerve Conduction Studies and Electromyography (Wellpoint Federal (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A56619: Billing and Coding: Nerve Conduction Studies and Electromyography (Palmetto GBA (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other S64 diagnoses (Injury of nerves at wrist and hand level)
- S64.91XA — Injury of unspecified nerve at wrist and hand level of right arm…
- S64.01XA — Injury of ulnar nerve at wrist and hand level of right arm, initial…
- S64.02XA — Injury of ulnar nerve at wrist and hand level of left arm, initial…
- S64.11XA — Injury of median nerve at wrist and hand level of right arm, initial…
- S64.12XA — Injury of median nerve at wrist and hand level of left arm, initial…
- S64.21XA — Injury of radial nerve at wrist and hand level of right arm, initial…
- S64.22XA — Injury of radial nerve at wrist and hand level of left arm, initial…
- S64.31XA — Injury of digital nerve of right thumb, initial encounter
- S64.32XA — Injury of digital nerve of left thumb, initial encounter
- S64.490A — Injury of digital nerve of right index finger, initial encounter
- S64.491A — Injury of digital nerve of left index finger, initial encounter
- S64.492A — Injury of digital nerve of right middle finger, initial encounter
- S64.493A — Injury of digital nerve of left middle finger, initial encounter
- S64.494A — Injury of digital nerve of right ring finger, initial encounter
- S64.495A — Injury of digital nerve of left ring finger, initial encounter
- S64.496A — Injury of digital nerve of right little finger, initial encounter
- S64.497A — Injury of digital nerve of left little finger, initial encounter
- S64.498A — Injury of digital nerve of other finger, initial encounter
- S64.8X1A — Injury of other nerves at wrist and hand level of right arm, initial…
- S64.8X2A — Injury of other nerves at wrist and hand level of left arm, initial…
Frequently asked questions
Does Medicare cover S64.92XA (Injury of unspecified nerve at wrist and hand level of…)?
Medicare covers items and services, not diagnoses. 7 Medicare billing and coding articles list S64.92XA as a covered diagnosis for 4 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 S64.92XA?
The Level II codes from the policies most specific to this diagnosis are G0283 (Electrical stimulation (unattended), to one or more areas…, 1 article); G0453 (Continuous intraoperative neurophysiology monitoring, from…, 1 article); G0255 (Current perception threshold/sensory nerve conduction…, 5 articles); G0282 (Electrical stimulation, (unattended), to one or more…, 1 article). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list S64.92XA?
A56034 (Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathy); A56722 (Billing and Coding: Intraoperative Neurophysiological Testing); A57307 (Billing and Coding: Nerve Conduction Studies and Electromyography), and 4 more articles.
What is ICD-10-CM code S64.92XA?
S64.92XA is the ICD-10-CM code for injury of unspecified nerve at wrist and hand level of left arm, initial encounter, in category S64 (Injury of nerves at wrist and hand level), chapter 19: Injury, poisoning and other consequences of external causes.
Next steps
- Run a reimbursement report for a device billed under G0283
- Watch G0283 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G0283
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.
Chapter 19: Injury, poisoning and other consequences of external causes · All diagnoses · HCPCS lookup