Centers for Medicare & Medicaid Services
www.cms.hhs.gov — Main website for all Medicare states, This website has great information for fees, RVUs, appeal info, billing questions, and other modifier guidelines. Good source of medical billing information.
Texas Medicare Program
https://yourtexasbenefits.hhsc.texas.gov/programs/health/disability-or-65plus/medicare-savings-programs This is a helpful Texas Site for medicare.
Texas Medicaid Program
http://www.hhsc.state.tx.us/medicaid/ This is the Texas Site for medicaid.
http://www.ecare.com/ line is a powerful resource designed to assist healthcare professionals with a wide range of everyday administrative tasks.
http://www.flashcode.com/ Free ICD coding