2. ICD-9Code Data Files by 3M 3M is a comprehensive resource for data solutions to medical coding and compliance. Offerings include CPT, ICD-9, HCPCS, RBRVS and products that interrelate these coding schemes. www.data-files.com
8. ICD-9Code Resources ICD-9Code resources for accurate medical billing, claim validation and compliance. Coding books and software available in twelve formats at new low prices. Books discounted. www.medetrac.com/icd-9-cm