In simple words: This code covers the extra service provided by the doctor when they see you outside of their regular office hours or on a day their office is usually closed, like a weekend or holiday.It's billed on top of the regular charge for the visit itself.

This code is used for services rendered in the office outside of normal office hours or on days when the office is typically closed. It is reported in addition to the primary service provided.Examples include a patient seen on a holiday, weekend, or after hours due to an urgent need. It is important to note that if the office remains open late to accommodate waiting patients from regular hours, this code may not be applicable.

Example 1: A patient experiences a sudden onset of severe migraine late on a Saturday evening.The physician opens their office specifically to see this patient. The appropriate E/M code for the migraine visit and 99050 are reported., A patient scheduled for a routine follow-up appointment on a Wednesday afternoon develops a high fever and cough the night before.The physician agrees to see the patient early Tuesday morning before regular office hours begin. The office was closed before the physician arrived. Along with the appropriate E/M code, 99050 is reported., A physician makes a house call on Christmas Day to evaluate a frail elderly patient who has developed a new onset of shortness of breath.The physician bills 99050 along with the house call code.

Documentation must support the medical necessity of the service provided outside of regular office hours or on a day when the office is typically closed. The reason for the visit and the services provided should be clearly documented.