The ICD-10-CM Official Coding and Reporting Guidelines have just been updated to include COVID reporting. Additional information beyond the previously released interim guidelines are included. These are the rules that should be followed for claims submission. The notice states that this is for April 1, 2020 through September 30, 2020.
Many procedure codes are considered “timed codes,” that is, the number of units are determined by the amount of time spent performing the service. Medicare Claims Processing Manual, Chapter 5 clarification included here.