"Centers for Medicare and Medicaid Services -CMS-
a division of the Department of Health and Human Services -DHHS- that is responsible for administering the Medicare program and the federal portion of the Medicaid program- responsible for maintaining the procedure portion of the International Classification of Diseases- 9th revision- Clinical Modification -ICD-9-CM-. Prior to 2001- MCS was named the Health Care Financing Administration -HCFA-"