How do I dispute CPT E0935?

Request a fully itemized bill with CPT codes and your EOB. For E0935 specifically, the most common issues are not received, frequency, quantity. Write a short dispute letter to the provider's billing office listing the specific line items you're contesting and the reason; federal and state law require them to investigate and pause collections while the dispute is open. Or upload the bill to patientbill.org and we'll do the dispute letter for you — we only get paid if we lower your bill.

Why is CPT E0935 on my bill?

Continuous passive motion (CPM) device, knee. It appears on bills when a service was performed in a pharmacy, dme supplier, or hospital setting and the provider documented enough work to support this specific code. If the description doesn't match what you remember happening at your visit, ask for the chart note that supports the code.

HCPCS code

E0935 — Continuous passive motion (CPM) device, knee

Q: What's a fair price for CPT E0935?

Most patients should expect to pay no more than 2–3× the Medicare allowable for the same service. There's no straightforward Medicare allowable for this code (it's not on the standard physician fee schedule). A reasonable target when negotiating cash-pay or self-pay is somewhere between the Medicare rate and the in-network allowed amount your insurer would pay.

Plain-English reference for HCPCS E0935. What it covers, what it typically costs, and the billing errors patientbill.org looks for on this code.

Typical setting: Pharmacy, DME supplier, or hospital
Medicare allowable: —

The Medicare allowable is the national non-facility rate from the CMS Physician Fee Schedule and is the most defensible "fair price" anchor. Commercial charges typically run 2–5× this number; hospital list prices can be much higher still.

What this code actually is

HCPCS E0935 is a supply / equipment / drug code — continuous passive motion (cpm) device, knee. HCPCS lines are some of the most disputable charges on a bill because patients frequently weren't given the item, weren't given the billed quantity, or were billed beyond the insurer's frequency limit. Compare every HCPCS line on the bill to what you actually received and what was documented in the chart — and check whether any monthly/quantity caps apply.

Audit issues we look for on E0935

Not received — supply or DME billed but never delivered to the patient
Frequency violation — billed more often than insurance allows
quantity

Think your bill has the wrong E0935 charge?

Upload the bill and we'll check for upcoding, unbundling, duplicates, and prices above what's reasonable. If we recover money for you, we keep a small contingency fee. If we don't, you owe nothing.

Common questions about CPT E0935

Charges vary widely between providers and payers. There's no straightforward Medicare allowable for this code (it's not on the standard physician fee schedule). If your bill for this code is significantly above the high end of that range, ask for an itemized statement and compare against your Explanation of Benefits (EOB) — the insurance "allowed amount" is the most defensible reference point.

Related codes in Supplies, equipment & drugs (HCPCS)

Patientbill.org is not affiliated with any provider, insurer, or the AMA. Code descriptions are CMS-published short descriptors plus our own plain-English explanations; pricing references are from the CMS Medicare Physician Fee Schedule and public charge benchmarks and may be outdated. Verify your specific charges against your EOB.