Like other services covered by Medicare, observation must be reasonable and necessary or, in other words, medically necessary. The physician must document that they assessed patient risk to determine that the patient would benefit from observation services.
The Medicine section of the CPT Manual includes codes for a variety of services including acupuncture, vaccinations, and behavioral health assessments and is divided into 33 subsections that can make it challenging to navigate.
The 2020 update to the CPT Manual includes extensive updates to cardiovascular codes, including new codes for pericardiocentesis and pericardial drainage, aortic grafting, and endovascular repair procedures.
If you aren’t yet confused by the site-neutral payment policy changes prompted by CMS apparently ignoring both Congressional intent and the American Hospital Association (AHA) and other impacted hospitals filing suit, you are likely to become so now.