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. The following program illustrates the use of getchar function.
These symptoms may also be caused by benign thyroid nodules, infection or inflammation of the thyroid gland, or a goiter. Thyroid nodules are classified to ICD-9-CM code 241.0, Nontoxic uninodular goiter. If a nodule is with hyperthyroidism or thyrotoxicosis, assign code 242.1x.
ICD Code D23.1 is a non-billable code. To code a diagnosis of this type, you must use one of the three child codes of D23.1 that describes the diagnosis 'other benign neoplasm of skin of eyelid, including canthus' in more detail. D23.1 Other benign neoplasm of skin of eyelid, including canthus NON-BILLABLE.