Outpatient and Physician Services: E/M, Procedures, and Same-Day Surgical Care
Level selection after the 2021 E/M overhaul
Office/outpatient E/M codes 99202–99215 are selected by either medical decision making (MDM) or total time on the date of the encounter - not both, and not a blend. MDM has three elements: number and complexity of problems, amount and complexity of data reviewed, and risk of morbidity/mortality. A level requires that two of the three elements meet or exceed that level. Time includes pre-visit chart review, the visit, counseling, and documentation, but excludes separately reported services such as a procedure.
Patient status and place of service
An established patient has received professional services from the same physician or same specialty in the same group within three years; otherwise the patient is new. Facility (hospital outpatient, ASC) versus nonfacility (office) place of service changes the payment and tells you whose resources are being reported. Global surgical packages are 0, 10, or 90 days - minor procedures cluster at 0 or 10.
Bundling and modifiers
A procedure designated "separate procedure" is not reported with a more extensive procedure in the same area. Report multiple procedural sites with modifier 51 per payer policy and distinct anatomic sites with 59/X{EPSU} only when documentation supports separation. When a significant, separately identifiable E/M is furnished the same day as a minor procedure, append modifier 25 to the E/M; the procedure alone with no separate evaluation does not justify an E/M.
Worked example: Established patient reports ear pain; the physician evaluates and removes impacted cerumen (69210, 0-day global). The E/M (99213) is payable only with modifier 25 and a documented assessment beyond the removal itself. If the visit is solely cerumen removal, report 69210 alone.
Rule of thumb: match the code to documented work, then let the modifier explain the pairing - never the reverse.