A “DJO-CMF-IB REVADV” charge on your bank or credit card statement is a patient balance from Enovis, formerly DJO Global, for a Combined Magnetic Field bone growth stimulator that you or a family member was prescribed after orthopedic surgery or a difficult fracture.1Enovis. DJO Is Now Enovis It usually posts weeks or months after the device was delivered, which is why the descriptor rarely rings a bell at first.
What the Code Actually Refers To
“DJO” is the legacy brand name for the medical device company now operating as Enovis. “CMF” stands for Combined Magnetic Field, the proprietary technology behind the company’s bone growth stimulators.2Enovis. Spinalogic Two of the most commonly prescribed devices carrying this technology are the SpinaLogic, used after lumbar spinal fusion, and the OL1000, used for nonunion fractures where healing has stalled.3Enovis. OL1000 Both use low-frequency electromagnetic fields in a 30-minute daily session to encourage new bone formation.
The “IB” portion likely indicates insurance billing, meaning the amount represents what remained after your insurer processed the claim. “REVADV” appears to be an abbreviation tied to the billing platform Enovis uses for patient accounts. Neither abbreviation is publicly defined on the company’s website.
Why It Shows Up So Long After the Device
The gap between receiving the stimulator and seeing the charge trips most people up. Enovis first submits the claim to your health insurance carrier, waits for the insurer’s determination, and only then bills you for the portion insurance didn’t cover. That cycle routinely takes several months, longer when there are coverage disputes or claim resubmissions.
What you owe depends on your deductible, copay structure, and whether your plan classifies the device as durable medical equipment. Bone growth stimulators are expensive, so even favorable insurance terms can leave a real patient balance. By the time it hits your statement, treatment is often finished and the device half-forgotten.
How to Verify the Charge Before You Call
Pull the Explanation of Benefits your insurance carrier sent after processing the claim. The EOB shows the total billed amount, what insurance paid, and your share. Your responsibility figure on the EOB should match the amount on your bank statement.
If you still have the device, note the serial number printed on it. Enovis can use that number to confirm the shipment date and match it to your account. A paper invoice or billing statement from Enovis will also carry an account number, and having it ready when you call lets the representative pull up your full billing history right away.
Contacting Enovis About a CMF Charge
Enovis has dedicated phone lines for billing questions on CMF bone growth stimulators:4Enovis. Contact Us
- Statement inquiries: (888) 631-9587, option 2, 8:00 a.m. to 5:00 p.m. CST
- Financial assistance: (888) 631-9587, option 3, 8:00 a.m. to 5:00 p.m. CST
- Automated payments: (888) 631-9587, option 1
- Payment options: (800) 452-5065, 8:00 a.m. to 7:00 p.m. CST
Have your account number, your EOB, and the exact charge amount in front of you. The representative can walk through how the final balance was calculated and confirm the charge is yours.
If the Balance Is Real but You Can’t Pay It in Full
Enovis offers interest-free payment plans scaled to the amount owed. An $800 balance, for example, qualifies for a 12-month interest-free plan. You set one up by calling (888) 631-9587, option 3, after receiving your first mailed billing statement.5Enovis. DJO Payment Options
There is also a patient financial assistance program for people experiencing hardship. Income thresholds aren’t published, so the financial assistance line is the way to find out whether you qualify for a reduced balance or an alternative arrangement.
Disputing the Charge
If the charge doesn’t match your EOB, you don’t recognize the device, or the amount looks wrong, your dispute rights depend on which type of card was hit.
Credit Card
The Fair Credit Billing Act gives you 60 days from the date your statement was sent to notify your credit card issuer of a billing error in writing.6Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors The notice must include your name, account number, the disputed amount, and why you think it’s wrong. The creditor must acknowledge the dispute within 30 days and resolve it within two billing cycles.7Federal Trade Commission. Fair Credit Billing Act While the investigation is open, the creditor cannot report the amount as delinquent or take collection action on it.
Debit Card
Debit charges fall under the Electronic Fund Transfer Act, and the rules are less forgiving. Report an unauthorized charge to your bank within two business days of discovering it and your liability caps at $50. Wait longer than two days but report within 60 days of your statement and you could owe up to $500. Miss the 60-day window and you risk unlimited liability for transfers that happen after that deadline.8Consumer Financial Protection Bureau. 12 CFR 1005.6 – Liability of Consumer for Unauthorized Transfers If an unauthorized charge is on your debit card, call your bank the same day.
If You Never Ordered a Bone Growth Stimulator
A stimulator that showed up at your door without a doctor prescribing it is a different problem. The HHS Office of Inspector General has issued alerts about scams in which Medicare beneficiaries receive unsolicited orthopedic equipment and the cost is billed to their insurance without authorization.9HHS Office of Inspector General. Fraud Alert – Nationwide Brace Scam Beyond the immediate charge, fraudulent claims on your Medicare account can trigger denials later when you actually need covered equipment.
Report suspected fraud through any of these channels:10Centers for Medicare and Medicaid Services. Reporting Fraud
- HHS OIG Hotline: 1-800-447-8477
- Online: tips.hhs.gov
- Medicare directly: 1-800-633-4227 for Parts A and B questions
- FTC: reportfraud.ftc.gov
Call your insurance carrier to flag the claim and your bank to dispute the charge as well. The earlier you report, the stronger your protections under both federal fraud statutes and your bank’s dispute process.