A same or similar denial can occur when Medicare records show that a beneficiary already received equipment that is identical or functionally similar to the newly billed item, particularly when the previous equipment remains within its reasonable useful lifetime.
The most effective prevention strategy is to review the beneficiary’s equipment history before delivery, determine whether the new request is a replacement, repair or medically necessary change, and obtain supporting documentation before submitting the claim.
What Does “Same or Similar” Mean?
Medicare may compare a newly billed item with previously paid DMEPOS claims for the same beneficiary.
The comparison is not always limited to an identical HCPCS code. Different codes may represent equipment that performs the same or a similar therapeutic function. For example, two mobility products may be considered similar even when their descriptions and features are not exactly the same.
When the previous equipment remains available and medically appropriate, Medicare may determine that a second item is not reasonable and necessary.
Why These Denials Often Happen
Same or similar denials commonly occur when:
- The supplier does not check previous Medicare claim history
- The patient forgets about older equipment
- A caregiver provides incomplete information
- The previous item was supplied by another company
- A replacement is delivered without documenting the reason
- A different HCPCS code is assumed to be unrelated
- The previous equipment remains within its reasonable useful lifetime
- The new item is intended only as a backup
DME MAC guidance recommends checking same or similar information through the applicable Medicare portal or interactive voice response system before furnishing the equipment.
Step 1: Ask About Previous Equipment
The intake team should ask the beneficiary or representative:
- Have you received this type of equipment before?
- Was it purchased or rented?
- Did Medicare pay for it?
- Approximately when was it received?
- Is it still being used?
- Was it returned to the supplier?
- Was it lost, stolen or damaged?
- Has your medical condition changed?
- Which supplier provided the previous equipment?
Patient statements are useful, but they should not be the only source of information. Staff should also review the applicable Medicare portal or DME MAC system.
Step 2: Check the Reasonable Useful Lifetime
The reasonable useful lifetime, commonly called RUL, helps determine whether Medicare may pay for replacement equipment because of ordinary wear.
CMS states that when no specific program instruction establishes a different period, the RUL for DME cannot be less than five years. The calculation generally begins from the date the equipment was delivered to the beneficiary.
An item reaching five years does not automatically guarantee payment. The new equipment must still meet applicable coverage, documentation, coding and medical-necessity requirements.
Some equipment categories have code-specific or policy-specific replacement rules, so the relevant LCD, policy article and DME MAC guidance must also be checked.
Step 3: Classify the Request Correctly
Before delivering another item, determine which situation applies.
New Equipment
The patient has not previously received the same or similar equipment, or the previous item no longer creates a coverage conflict.
Repair
The existing item remains owned by the patient and can be restored to proper working condition by replacing parts or completing necessary labor.
Repairing an item is not the same as replacing it. The record should explain the problem, the work performed and why repair remains appropriate.
Replacement After Reasonable Useful Lifetime
The previous item has reached its applicable RUL and replacement is now requested because the equipment is no longer suitable for continued use.
Replacement Due to Loss or Theft
The file should contain a clear explanation of what happened. Depending on the circumstances, Medicare may request supporting evidence such as a police report, insurance report or other incident documentation.
Replacement Due to Irreparable Damage
Irreparable damage generally results from a specific incident, such as a fire, flood or accident, rather than gradual wear.
Different Equipment Due to a Changed Condition
The patient may need a different item because their medical or physiological condition has changed. The practitioner’s records should clearly describe the change and explain why the previously supplied equipment can no longer meet the patient’s needs.
Step 4: Build the Documentation Before Delivery
The documentation packet may include:
- Current standard written order
- Practitioner’s clinical records
- Previous equipment details
- Original delivery date
- HCPCS code history
- Description of the equipment’s present condition
- Repair estimate when relevant
- Loss, theft or damage statement
- Police or insurance report when available
- Explanation of a changed medical condition
- Proof that previous rental equipment was returned
- Advance Beneficiary Notice when applicable
The documents should tell one consistent story. Dates, equipment descriptions and explanations should not conflict across the order, medical record, intake notes and claim narrative.
Step 5: Create a Pre-Delivery Decision Record
A short internal decision note can prevent confusion later.
Record:
- Whether same or similar history was found
- The previous HCPCS code
- The previous delivery or initial rental date
- Whether the RUL has expired
- Whether the request involves repair or replacement
- The reason another item is needed
- Which supporting records were collected
- Whether an ABN is required
- Who approved delivery
This record gives billing staff a clear basis for coding and provides a starting point if the claim is reviewed.
What to Do After a Same or Similar Denial
First, compare the denial against the beneficiary’s complete equipment history. Then determine whether the issue resulted from an actual coverage conflict, missing replacement information or incomplete documentation.
A redetermination packet may include:
- The denial notice
- A current order
- Relevant practitioner records
- Previous equipment information
- Proof of loss, theft or damage
- An explanation of the changed medical condition
- Repair records or estimates
- A written timeline of events
- Delivery documentation
- A concise cover letter connecting the evidence to the replacement request
DME MAC guidance specifically identifies documentation supporting loss, theft, irreparable damage or a medical change as potentially relevant when appealing a same or similar denial.
Frequently Asked Questions
Can Medicare deny a different HCPCS code as similar?
Yes. Equipment may be considered similar based on its function, not only whether the HCPCS codes are identical.
Does the five-year point guarantee replacement coverage?
No. Reaching the RUL addresses only one part of the decision. The replacement must still be medically necessary and meet all current coverage requirements.
Can Medicare pay for backup equipment?
Backup equipment is generally vulnerable to denial when the beneficiary already has a functioning same or similar item. Suppliers should evaluate liability and ABN requirements before delivery.
Final Takeaway
The best time to address a same or similar problem is before the equipment leaves the supplier.
Checking previous claims, calculating the applicable RUL and documenting the reason for replacement can protect the supplier from avoidable denials and help patients receive the equipment that is medically appropriate for their current condition.
QHS supports DME suppliers through eligibility verification, front-end claim review, denial analysis, appeals assistance and A/R management.
