Neurology billing pays on details the chart either captures or misses, from the total hours of a long-term video EEG to the units of botulinum toxin discarded after a migraine injection. Neurology credentialing runs on its own track, since a neurologist covering a hospital needs medical staff privileges and payer enrollment before the first consult can be billed.
Key Takeaways
- Medicare doesn’t pay consultation codes, so hospital consults bill as initial and subsequent hospital care.
- Routine EEG bills under 95812 through 95822, while long-term and ambulatory EEG moved to 95700 through 95726 in 2020.
- Nerve conduction studies are coded by the total number of nerves studied, and needle EMG done with them bills as an add-on.
- Botulinum toxin and MS infusion claims depend on prior authorization, correct drug units, and the JW or JZ modifier.
- Each neurologist needs hospital privileges and payer enrollment before their services can bill.
Office and Hospital E/M Visits
Outpatient neurology visits bill as 99202 through 99205 for new patients and 99212 through 99215 for established patients, leveled by medical decision-making or total time on the date of service. A patient with epilepsy and medication side effects, or Parkinson’s disease with falls, often brings several active problems, independent review of imaging or EEG results, and prescription drug management. That combination supports level 4 or 5 more often than many neurology practices bill. Medicare’s G2211 add-on also applies to office visits that are part of ongoing care for a serious or complex condition, which describes much of a neurology panel.
Hospital work follows different rules. Medicare stopped paying consultation codes in 2010, so a neurologist consulting on a hospitalized Medicare patient bills initial hospital care (99221 through 99223) for the first visit and subsequent hospital care (99231 through 99233) after that. Since 2023 those hospital codes are also leveled by medical decision-making or time. Some commercial plans still pay consult codes 99252 through 99255, so the code set has to be chosen by payer.
EEG Billing
Routine EEG codes are set by what the recording captured and how long it ran. 95816 covers an awake and drowsy recording, 95819 adds sleep, 95822 is a sleep-only study, and 95812 and 95813 cover extended recordings over 40 minutes.
Long-term EEG, including ambulatory and video monitoring, moved to 95700 through 95726 in 2020. The technical side covers setup and monitoring by the technologist, while the professional side covers the neurologist’s review and report and is coded by total recording time and whether video was captured. When the hospital or an outside vendor owns the equipment and staff, the neurologist bills only the professional codes, or modifier 26 where a code has a global version. Billing a global service when the facility owns the technical component creates denial and compliance risk on every study.
Each interpretation report has to stand alone, with the study type, duration, technical quality, findings, and clinical impression. A templated report with no specific findings doesn’t support the professional fee.
EMG and Nerve Conduction Studies
Nerve conduction studies bill under 95907 through 95913, chosen by the total number of nerve conduction studies performed, not by limb or by side. When needle EMG is done in the same session, it bills as add-on 95885 for a limited study or 95886 for a complete one. Needle EMG done on its own bills under 95860 through 95864, depending on how many extremities were studied.
These codes are among the most audited in neurology. The number of nerves billed has to match the report, add-on codes can’t be billed without the primary NCS code, and the diagnosis has to support the number of studies performed. Payers also apply frequency limits, and repeat studies inside a short window draw medical necessity reviews.
Botulinum Toxin and Infusions
Chemodenervation
Botulinum toxin injection for chronic migraine bills as 64615, with the drug billed separately in units under its own HCPCS code, such as J0585 for onabotulinumtoxinA. Other indications use different procedure codes, including 64616 for cervical dystonia and 64642 through 64647 for limb spasticity, and guidance codes are only billable where the payer allows them. Medicare requires the JW modifier on a separate line for any discarded amount and the JZ modifier when none was discarded. Nearly every payer requires prior authorization, and many limit injections to once every 12 weeks.
MS and other biologic infusions
Monoclonal antibody infusions for multiple sclerosis, such as ocrelizumab and natalizumab, are often billed with chemotherapy administration codes 96413 and 96415, since CPT allows those codes for complex biologic agents. Some commercial plans still accept the standard infusion codes 96365 and 96366, so the administration code has to match each payer’s policy. Start and stop times, the drug and dose, and units that match the HCPCS descriptor all have to be documented, and the authorization has to match the drug, dose, and site of care before the first infusion.
Documentation That Supports the Claim
Copy-forward notes are the most common documentation problem in neurology. A follow-up note that matches the previous three visits word for word doesn’t show new decision-making, and it’s an audit flag on its own. The note should show what changed, what data the neurologist reviewed, and what decision was made and why.
Procedure documentation carries the same weight. An NCS report needs every nerve studied with its values, a chemodenervation note needs each muscle injected and the units used, and an infusion record needs the timing and drug details that support the codes billed.
Neurology Credentialing
Payers verify board certification through the American Board of Psychiatry and Neurology, state licensure in every state where the neurologist sees patients, DEA registration, and malpractice history, and many pull that data from CAQH ProView. Subspecialty training in epilepsy, neurophysiology, movement disorders, or vascular neurology can matter for hospital privileges and for payers that limit who can read long-term EEG or perform EMG.
Hospital privileging and payer enrollment should run at the same time, since a neurologist can’t cover consults without privileges and can’t bill without enrollment. Medicare enrollment goes through PECOS, and a new neurologist’s services can’t be billed under another physician’s NPI while enrollment is pending. Medicare’s locum tenens rules only cover a substitute for an absent enrolled physician, not a new hire waiting on approval, which is why you can’t bill what you can’t credential.
Once a neurologist is enrolled, licenses, DEA registrations, board certification, CAQH attestations, and hospital privileges all renew on their own schedules. Recredentialing tracking keeps one lapsed date from stopping a provider’s claims.
Payer Contracting for Neurology
Most neurology fee schedules are set as a percentage of Medicare, and many practices haven’t checked where theirs land since the contracts were signed. Payer contracting reviews for neurology should look past the E/M rates to the codes that drive procedure revenue, including the professional long-term EEG codes, NCS and EMG, chemodenervation, and infusion administration. Drug reimbursement terms matter too, since a plan paying below acquisition cost on botulinum toxin or an MS biologic turns every injection or infusion into a loss.
Contract language deserves the same review. Prior authorization requirements, timely filing limits, and rules on telehealth visits all change what a contract pays in practice.
Where Neurology Claims Get Denied
Most neurology denials come from a short list of causes. These include consult codes billed to Medicare, high-level E/M visits with copy-forward notes, an E/M billed on the same day as a procedure without modifier 25, NCS counts that don’t match the report, global EEG billing when the facility owns the technical component, and injections or infusions given without a current authorization. Our list of the top reasons claims get denied covers the general causes.
Authorization denials for MS infusions and botulinum toxin usually go fastest through a peer-to-peer review between the neurologist and the payer’s medical director, followed by a written appeal with prior treatment history if needed. Tracking denials by payer and reason each month shows whether a problem sits in documentation, coding, or the front-end authorization workflow.
Neurology groups that read EEGs or cover stroke calls remotely face a separate set of rules, covered on our telestroke and teleneurology page.
Neurology Billing, Credentialing FAQ
Does Medicare pay for neurology consultation codes?
No. Medicare stopped paying consultation codes in 2010. Hospital consults bill as initial hospital care (99221 through 99223) and subsequent hospital care (99231 through 99233), and office consults bill as new or established patient visits. Some commercial plans still pay consult codes.
How is long-term EEG billed?
Long-term and ambulatory EEG use codes 95700 through 95726. Technical services are billed by whoever owns the equipment and employs the technologist, and the neurologist bills the professional codes based on total recording time and whether video was captured.
How are nerve conduction studies coded?
By the total number of nerve conduction studies performed, using 95907 through 95913. Needle EMG done in the same session bills as add-on 95885 or 95886, and the report has to list every nerve studied.
How is botulinum toxin for chronic migraine billed?
The injection bills as 64615 and the drug bills separately in units, such as J0585 for onabotulinumtoxinA. Medicare requires the JW modifier on discarded amounts or JZ when nothing was discarded, and most payers require prior authorization.
Which administration codes apply to MS infusions?
Many payers expect chemotherapy administration codes 96413 and 96415 for monoclonal antibodies like ocrelizumab and natalizumab. Some commercial plans accept 96365 and 96366, so the code has to follow each payer’s policy.
Should hospital privileges and payer enrollment start at the same time?
Yes. Payers enroll the neurologist for billing, and each hospital grants privileges through its own medical staff office, so neither has to wait on the other. Starting both when the neurologist signs avoids a gap where they can round but can’t bill. Medwave’s payer enrollments average 85 days.
Why Neurology Practices Work with Medwave
Neurology claims tend to break at the report level. An EEG billed for the wrong duration or an NCS count that doesn’t match the study gets denied no matter how clean the rest of the claim is. Medwave matches each code to the report, checks units and wastage on injections and infusions, and confirms authorizations before the patient is scheduled. Our neurology billing clean claim rate is 98%.
For neurologists who cover hospitals, our credentialing team runs privileges alongside payer enrollment. Payer enrollment usually wraps up in about 85 days.
Send us your most stubborn denial below and we’ll take a look.