Arthroplasty, glenohumeral joint, hemiarthroplasty. Assign the CPT code

When a patient does not pay on their account and multiple attempts have been made to collect it, it may be necessary to write off the amount owed as a/an

A) contract adjustment. B) refund adjustment. C) courtesy adjustment. D) uncollectable debt adjustment.

All cylinders must have a current hydrostatic test date: no older than ____ years for aluminum/steel or carbon cylinders.

A. three B. five C. seven D. nine