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.
Abbreviated OS, the Operating System is the resource manager which transforms sectors, bytes, interrupts and ports into files, folders, processes, and the user-interfaces with which you can interact. Examples include: Microsoft Windows (XP, Vista, or 7), any flavor of Linux, and Mac OS X (An apple version of Unix).bbreviated OS, the Operating System is the resource manager which transforms sectors, bytes, interrupts and ports into files, folders, processes, and the user-interfaces with which you can interact. Examples include: Microsoft Windows (XP, Vista, or 7), any flavor of Linux, and Mac OS X (An apple version of Unix).