3 Day Rule

I have not been able to find CLEAR documentation to state if CAH's are exempt from the 3 day (72 hr) and/or the 1 day (24 hr) rule. Also, I have read some articles that have conflicting information in regards to the ASC's. I think that ASC's are exempt as we are billing those with POS 24, but again I need some clarification. Thank you!

Melanie Hamilton
mhamilton@lrgh.org

re: 3 Day Rule

https://www.cynthiastamer.com/documents/alerts/20100703%20Medicare%203%20day%20Rule%20Clarified.pdf

re: 3 Day Rule

http://www.strategicm.com/articles/Articles%20Update/2010/April%202010/Clarifications%20to%20CMS'%20Longstanding%20Three-day%20Rule_Published%20April%202010.pdf

Reasonable Cost Payment Principles That Do NOT
Apply to Critical Access Hospitals
Payment for inpatient or outpatient CAH services is
not subject to the following reasonable cost principles:
?
Lesser of cost or charges; and
Reasonable compensation equivalent limits.
In addition, payment to a CAH for inpatient CAH
services is not subject to ceilings on hospital inpatient
operating costs or the 1-day or 3-day preadmission
payment window provisions applicable to hospitals
paid under the IPPS and OPPS.
https://www.cms.gov/Outreach-and-Education/Medicare-Learning-Network-MLN/MLNProducts/downloads//CritAccessHospfctsht.pdf