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CodeSystemType     
Lvl Type, Domain name and/or Mnemonic code Concept ID Mnemonic Print Name Definition/Description
1 L:  (E) 19956 E External

Code system is created and maintained by an organization outside of HL7

1 L:  (EI) 19957 EI Internal

Code system is created and updated by an organization outside of HL7, but an internal copy is mainted by HL7 for convenience

1 L:  (I) 19955 I Internal

Code system is created and maintained by HL7


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