===== Outline=====
==== Office or Other Outpatient Services ====
  * Hospital Inpatient and Observation Care Services
  * Consultations
  * Emergency Department Services
  * Nursing Facility Services
  * Home or Residence Services

===== MDM Levels=====

==== Inpatient Floor or Consult Billing ====
=== Initial Encounter ===
^ Code   ^ Requirements, MDM                 ^ Requirements, Time                    ^
^ 99221  | straightforward or low level MDM  | if using time, must be >= 40 minutes  |
^ 99222  | moderate level MDM                | if using time, must be >= 55 minutes  |
^ 99223  | High level MDM                    | if using time, must be >= 75 minutes  |

=== Subsequent Encounter ===
^ Code   ^ Requirements, MDM                 ^ Requirements, Time                    ^
^ 99231  | straightforward or low level MDM  | if using time, must be >= 25 minutes  |
^ 99232  | moderate level MDM                | if using time, must be >= 35 minutes  |
^ 99233  | High level MDM                    | if using time, must be >= 50 minutes  |

===== Definitions=====
====New Patient ====
A new patient is one who has not received any professional services from the physician or other qualified health care professional or another physician or other qualified health care professional 
  - of the exact same specialty and subspecialty who 
  - belongs to the same group practice
  - within the past three years.
=====Tables =====

^Code Type^ CPET Code^
| Hospital Inpatient and Observation Care Services E/M codes | 99221-99223, 99231-99239|
| Consultations E/M codes | 99242-99245, 99252-99255 |