According to the Medicare Benefits Policy Manual, Chapter 6, section 20.6 (Rev. 215, Issued, 12-18-15, Effective, 01-01-16, Implementation: 01-04-16) Observation care is a well-defined set of specific, clinically appropriate services, which include ongoing short term treatment, assessment, and reassessment before a decision can be made regarding whether patients will require further treatment as hospital inpatients […]