Diagnosis Code for Reimbursement Claim: ICD-9-CM 879.8. Code will be replaced by October 2015 and relabeled as ICD-10-CM 879.8. The Short Description Is: Open wound site NOS.
operating system. noun. Definition of operating system for Students. : a program or series of programs that controls the operation of a computer and directs the processing of the user's programs.
operating system (OS) a group of programs that controls how your computer system functions. The OS does the following: Manages the computer's hardware, including the processor, memory, and storage devices, as well as peripheral devices such as the printer. Provides a consistent means for application software to work with the central processing unit (CPU); and.