Discharge Services- Observation Care (1446)    NLM VALUE SETS (802.2)

Observation care discharge day management (This code is to be utilized 
to report all services provided to a patient on discharge from "observation 
status" if the discharge is on other than the initial date of "observation 
status." To report services to a patient designated as "observation status" 
or "inpatient status" and discharged on the same date, use the codes for 
Observation or Inpatient Care Services [including Admission and Discharge 
Services, 99234-99236 as appropriate.])