For example: char a; a= getchar(); The function getchar() reads a single character from the standard input device, the keyboard being assumed because that is the standard input device, and assigns it to the variable a.
This excludes acute and chronic respiratory failure (518.84), acute respiratory distress (518.82), acute respiratory failure following trauma and surgery (518.51), chronic respiratory failure (518.83), respiratory arrest (799.1), and respiratory failure, newborn (770.84). This applies to respiratory failure NOS.
2013 ICD-9-CM Diagnosis Code 518.81. Acute respiratory failure. Short description: Acute respiratry failure. ICD-9-CM 518.81 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 518.81 should only be used for claims with a date of service on or before September 30, 2015.