ICD-9-CM: Official version is available on CD-ROM from the Government Printing Office (GPO) at 202-512-1800 or FAX: 202-512-2250. The CD-ROM contains the ICD-9-CM classification and coding guidelines. Versions of ICD-9-CM are also available from several private sector vendors.
CPT-4: Official version is available from the American Medical Association. Versions are also available from several private sector vendors.
HCPCS: Information about HCPCS is available from the CMS by searching their web site at http://cms.hhs.gov.
Code on Dental Procedures and Nomenclature: Official version is available from the American Dental Association at 800-947-4746.
NDC: Official versions of the files are available on the Internet at http://www.fda.gov/cder/ndc/index.htm. NDC codes are also published in the Physicians’ Desk Reference under the individual drug product listings and "How supplied." The supplements are available quarterly on diskette from the National Technical Information Service at 703-487-6430.