CMS - Fee-for-Service 5010-D0
Technical Documentation
http://www.cms.gov/Medicare/Billing/mffs5010d0/technical-documentation.html
(originally posted 4/2012 – last changed 4/12/2013)
In the Downloads section of the above document, please see
• the 7th item: 5010 Institutional and Professional Edits spreadsheets [ZIP, 3MB]
• the last item: 5010 Institutional and Professional 277CA Error Descriptions [ZIP, 73KB]