Home Health & Hospice Week

OASIS:

Use CWF To Answer M0175 Correctly

OIG scrutiny and payment impacts make getting correct information on patients' prior inpatient stays a must.

If you're at a loss as to how to tighten up your M0175 information-collection practices, take heart - the common working file may be your best friend.

It's important to obtain the correct information, because M0175 asks if the patient has been discharged from a hospital, skilled nursing facility or rehab facility within 14 days of home health admission. If the patient has had a hospital stay and a SNF or rehab stay in that time, but only the SNF or rehab stay was marked, payment for the patient goes down by as much as $600 for therapy patients and $200 for non-therapy patients. If they've had only a SNF or rehab stay that didn't get marked, payment for the patient can go up by the same amounts.

Problem: The trouble is that home health agencies usually rely on receiving prior stay information from referral sources, patients and their families, which often results in inaccurate responses to M0175.

Solution: Using the HIQA query screen for the CWF means home health agencies won't have to rely solely on hearsay for information on patients' prior inpatient stays, a Centers for Medicare & Medicaid Services official tells Eli. If you know where to look, the CWF can tell you a lot about a patient's history of inpatient stays.

No Fooling:  M0175 Edits Coming In April 

This is a big help, because M0175 soon will be more important than ever. Beginning in April, the Medicare claims system will downcode your claims if the patient's claims history shows an unmarked qualifying hospital stay combined with a rehab or SNF stay (see Eli's HCW, Vol. XII, No. 39, p. 306). But it won't give you more money if you fail to mark just a SNF or rehab stay that had no accompanying hospital stay.

In addition to the payment implications, the HHS Office of Inspector General and other fraud investigators have their eye on the M0175 issue, notes consultant M. Aaron Little with BKD in Springfield, MO. These "reinforce the necessity for accurate responses," Little says.

Checking the CWF through HIQA should be an important part of ensuring your M0175 accuracy, but it "can require some detective work to decipher," Little admits.

Some regional home health intermediary reps are telling agencies the information isn't available, notes Lynn Olson with billing company Astrid Medical Services in Corpus Christi, TX. But you just need to know the ropes, CMS and Little say. (For tips on figuring out the CWF, see "Reimbursement:  5 Steps" this issue).

Don't Rely Soley On CWF 

Once you get the hang of it, using the CWF may make your M0175 information-gathering much easier. But don't fall into the trap of using it as the only data-collection tool in your arsenal, warns Linda Dilts-Benson with Reingruber & Co. in St. Petersburg, FL.

The CWF's major flaw is that it "is working in real time," Dilts-Benson points out. "Therefore, if something has not been billed yet, it will not show up."

HHAs are looking for discharges within two weeks of the home health admit, and often claims from hospitals, SNFs and rehab facilities simply haven't "hit the system yet," she cautions.

 


Common working file information "can require some detective work to decipher," says consultant M. Aaron Little with BKD in Springfield, MO.

"If the facility is behind on its billing or has other billing problems, the SNF stay will not appear in the CWF," Little agrees. "Thus, home health intake personnel must do additional detective work. It is not enough to solely rely on the CWF."

The most accurate prior stay information comes from interviewing referral sources, patients and family members, as well as the providers they name, Dilts-Benson advises. Billing delays affecting CWF information make these interviews the best way to gather prior stay information in the short term, she maintains.

Strategies for success: BKD clinical consultant Karen Vance offers these tips on making the most of your interviews:

  • Ask the referral source about all prior admissions, transfers and discharges during the initial referral phone call.

  • Compare the patient's length of stay to what is covered by Medicare. If they say they were in the "hospital" for 10 days, but Medicare only covers three days of hospital care for the patient's diagnosis related group (DRG), it's likely the patient was under SNF or rehab care for the remaining seven days.

  • Carefully examine all documentation from the referral source, including the patient's history and physical, to identify potential prior SNF stays.

  • During the comprehensive assessment, ask the patient questions like "did you move from one place to another during your hospital stay?" and "what unit/wing were you in during your hospital stay?" Answers can lead clinicians to confirm a potential SNF stay by contacting the hospital.