Does G56.23 require prior authorization?

No, G56.23 does not require prior authorization (high confidence). Code is covered without prior authorization.

`G56.23` — Lesion of ulnar nerve, bilateral upper limbs

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

When NCSs and NEMG are performed on the same day for the same patient they must be reported on the same claim.
When billing non-covered services/tests report unlisted neurological CPT 95999 and provide a description of the service/test in block 80 (Part A) or box 19 (Part B) or electronic equivalent; failure to include this information will result in Part A claims being returned and Part B claims rejected.
All documentation must be maintained in the patient's medical record, be legible, include patient identification and dates of service, and include the legible signature of the responsible physician or non-physician practitioner.
The submitted medical record must support the selected ICD-10-CM code(s), the submitted CPT/HCPCS code must describe the service performed, and the record must clearly document the medical necessity, the indication for ordering the test(s), and a clear diagnostic impression.

Nerve conduction studies (NCS) without needle electromyography (NEMG) are allowed for individuals being evaluated for carpal tunnel syndrome or tarsal tunnel syndrome when one of the diagnosis codes G56.01, G56.02, G56.03, G56.11, G56.12, G56.13, G56.21, G56.22, G56.23, G57.51, G57.52, or G57.53 is reported.
NCS without NEMG is allowed for individuals with significant lymphedema in the affected extremity when diagnosis code I89.0 is reported in addition to the primary diagnosis.
NCS without NEMG is allowed for individuals treated with anticoagulants when diagnosis code Z79.01 or Z79.02 is reported in addition to the primary diagnosis.
Compounded medications for use in implantable infusion pumps may be covered by Medicare when their use meets all other criteria for services provided incident to a physician's service.
True off-the-shelf (non‑compounded) drugs used without compounding and administered via DME may be billed using the drug-specific HCPCS code and are reimbursed under CMS ASP methodology.
If Prialt® is implanted as a single agent in the pump, bill using HCPCS code J2278-KD.

A57604 — Billing and Coding: Intraoperative Neurophysiological Testing

J05

A57478 — Billing and Coding: Nerve Conduction Studies and Electromyography

J05

L34594 — Nerve Conduction Studies and Electromyography

J05

L34623 — Intraoperative Neurophysiological Testing

J05

A57668

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