Release Date: 2015-07-31

OID for code system: 2.16.840.1.113883.5.51

OID for value set: 2.16.840.1.113883.1.11.11523 (this is the value set that includes the entire code system)

Level Code Display Definition
1 I Intact Reproductively intact
1 N Neutered Reproductively neutered