1) CMS Home Page http://www.cms.hhs.gov
2) National Correct Coding Initiative (NCCI) Edits (Unbundling Edits) http://www.cms.hhs.gov/NationalCorrectCodInitEd
3) Federal Register Contents Browser & Search Engine http://www.gpoaccess.gov/fr
4) CMS Regulations and Guidance http://www.cms.hhs.gov/home/regsguidance.asp
5) CMS Medlearn Matters Summary Documents (articles designed to help providers understand new or changed Medicare policy) http://www.cms.hhs.gov/medlearn/matters
6) Addendum/Updates to the ICD-9-CM Diagnosis Codes http://www.cdc.gov/nchs/icd9.htm
7) HFMA Home Page - Healthcare Financial Management Association http://www.hfma.org
8) AHIMA Home Page - American Health Information Management Association http://www.ahima.org