Does D33.9 require prior authorization?

No, D33.9 does not require prior authorization (high confidence). Code is covered without prior authorization.

`D33.9` — Benign neoplasm of central nervous system, unspecified

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

When billing J7999-KD, enter the name and total dose (mg or mcg) of each drug in Box 19 of the CMS-1500 or the appropriate electronic comment loop; if Box 19 cannot accommodate all information, attach the details to the paper claim.
If a portion of a single-dose vial is not used, submit the HCPCS code for the drug on a separate claim line and append modifier JW to indicate discarded/unused portion.
Separate payment may be made for pump refilling and/or adjustments; submit these services using the appropriate drug refill or maintenance CPT/HCPCS code that accurately describes the service rendered.
Compounded drugs are priced by the A/B MAC contractor by multiplying the contractor's price per mcg or mg by the total number of mcg or mg of each drug used; a pharmacy compounding fee may be allowed in addition to the calculated drug amount.

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.
Compounded single-agent or combination drug formulations used in implanted infusion pumps must be billed using HCPCS code J7999-KD for reimbursement.
Continuous intraoperative neurophysiologic monitoring provided one-on-one in the operating room (CPT 95940) is covered when it supports the covered indications in LCD L35003.
Report continuous intraoperative neurophysiologic monitoring in the operating room (95940) in addition to monitoring services provided from outside the operating room (G0453); coverage includes interpretation of baseline studies and removal of electrodes at the end of the procedure when supporting the LCD indications.

A57604 — Billing and Coding: Intraoperative Neurophysiological Testing

J05

L34623 — Intraoperative Neurophysiological Testing

J05

A57452 — Billing and Coding: Peripheral Nerve Blocks

J06

L36850 — Peripheral Nerve Blocks

J06

A56827 — Billing and Coding: Proton Beam Therapy

Ask Verity about documentation requirements, denial risks, or coverage in your state.