Is Openmrs GET/Post API are HL7 Compatible ?

Please clear my few doubts on Openmrs.

1.Is **Get/Post api are HL7** compatible? can i **transfer data** to other organization/institute in HL7?
3.Is **Openmrs follows Snomed CT** ? if yes then **where it is implemented**? 

Please reply my answer point wise if possible,
Thanks in advance.

@govind ,

  1. For the information on what is doable with HL7, this ( may be of help.
  2. Refer to 1
  3. What is achievable with Snomed CT in openmrs is done using the CIEL dictionary as advised here (Using Snomed CT in OpenMRS)