S64.90XA Insurance Policy Changes

ICD-10 S64.90XA is officially defined as "Injury of unspecified nerve at wrist and hand level of unspecified arm, initial encounter." code S64.90XA is referenced in 3 tracked payer policy changes from Aetna. For billers and coders, staying current on payer-specific coverage criteria, reimbursement rules, and prior-authorization requirements for code S64.90XA is critical to clean claim submission. Each entry below links to the full policy analysis with effective dates and action steps.

Aetna · Identified Oct 12, 2026Medium impact
Nerve Grafting and Reconstruction: Selected Indications (CPB 0416, reviewed 2026-10-06)
Nerve allograft (Avance) is medically necessary for repair of short-to-medium sensory nerve gaps of 30 mm or less in the upper extremity, and CPT 64912 and 64913 are covered when those selection criteria are met. Nerve allograft for motor nerve repair, long gaps over 30 mm, large-diameter nerves, lower extremity reconstruction and all other indications not noted as medically necessary is experimental, investigational or unproven. Sural, cavernous and genitofemoral nerve grafts during radical retropubic prostatectomy, collagen and synthetic or xenograft nerve wraps and conduits for all indications, nerve wrapping for compression neuropathy, and vascularized nerve grafts for a nerve gap are also listed as not covered.
Aetna · Identified Oct 4, 2026Medium impact
Nerve Grafting and Reconstruction: Selected Indications (CPB 0416, reviewed 2026-09-28)
Nerve allograft (Avance) is considered medically necessary for repair of short-to-medium sensory nerve gaps of 30 mm or less in the upper extremity. CPT 64912 and 64913 are covered when those selection criteria are met. Sural, cavernous and genitofemoral nerve grafts during radical retropubic prostatectomy, nerve allograft for motor nerve repair, long gaps over 30 mm, large-diameter nerves, lower extremity reconstruction, collagen conduits, and synthetic or xenograft nerve grafts and wraps for all indications are considered experimental, investigational or unproven. Cross-palm nerve grafting, intra-operative electrical stimulation, nerve wrapping for compression neuropathy, phrenic nerve reconstruction for diaphragmatic paralysis (other than prompt repair of acute phrenic nerve transection due to trauma or surgery), and vascularized nerve grafts for a nerve gap are also considered experimental, investigational or unproven.
Aetna · Identified Aug 17, 2026Medium impact
Nerve Grafting and Reconstruction: Selected Indications (CPB 0416, reviewed 2025-06-09)
Aetna's Clinical Policy Bulletin 0416 sets the medical necessity rules for nerve grafting and nerve reconstruction. Nerve allograft (Avance) is medically necessary for repair of short-to-medium sensory nerve gaps of 30 mm or less in the upper extremity, while nerve allograft for motor nerve repair, long gaps over 30 mm, large-diameter nerves, lower extremity reconstruction and all other indications not listed as medically necessary is experimental, investigational or unproven. Collagen conduits and synthetic or xenograft nerve grafts, including the AxoGen, Integra, NeuraGen, NeuraWrap, Neuromatrix and NeuroMend products, are experimental, investigational or unproven for all indications, and so are sural, cavernous and genitofemoral nerve grafts during radical retropubic prostatectomy, nerve wrapping for compression neuropathy, cross-palm nerve grafting for ulnar neuropathy, vascularized nerve grafts, intra-operative electrical stimulation of peripheral nerves in the upper extremity, and phrenic nerve reconstruction for diaphragmatic paralysis (this does not apply to prompt repair of acute phrenic nerve transection due to trauma or surgery).

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FREQUENTLY ASKED QUESTIONS

What insurance policy changes affect code S64.90XA?

There are 3 tracked policy changes affecting code S64.90XA, including updates from Aetna. Each change may modify coverage criteria, reimbursement rates, or prior-authorization requirements.

Which payers have updated policy for code S64.90XA?

Payers that have issued tracked updates for code S64.90XA include: Aetna.

How do I get notified when code S64.90XA policy changes?

Create a free account at PolicyChanges.app and save a search filtered to code S64.90XA. You will get an email when new policy changes reference this code: daily or weekly, your choice, on every plan.

Why do payers change policies for code S64.90XA?

Payers revise policies for individual billing codes to align with updated clinical guidelines, CMS rule changes, fraud and abuse prevention measures, or network cost-management goals. Changes can affect medical necessity criteria, place-of-service restrictions, bundling rules, or whether a code requires prior authorization.

All billing codes J3590 C9399 J3490 99215 99213 99202

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Nerve Grafting and Reconstruction: Selected Indications (CPB 0416, reviewed 2026-10-06)

Nerve Grafting and Reconstruction: Selected Indications (CPB 0416, reviewed 2026-09-28)

Nerve Grafting and Reconstruction: Selected Indications (CPB 0416, reviewed 2025-06-09)

What insurance policy changes affect code S64.90XA?

Which payers have updated policy for code S64.90XA?

How do I get notified when code S64.90XA policy changes?

Why do payers change policies for code S64.90XA?