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.
Breathe Easy: Coding Respiratory Failure in the Inpatient Setting. Respiratory failure is a condition in which not enough oxygen passes from the lungs into the blood. The bodyâs organs, such as heart and brain, need oxygen-rich blood to work well. It can also occur if the lungs cannot properly remove carbon dioxide (a waste gas) from the blood.