I started with a Google Search of "riverbed actual status for 'Healthy' "
EDIT : *The FIRST Non-Paid for search result was clicked on* - which turned out to be a MIB for SteelHead devices - which appears to be what you are running after viewing your screenshots again.
https://support.riverbed.com/bin/support/download?did=854
And I did a search for 'Healthy' within the document. And copied and pasted that portion to separate and have view ability of the actual integer values.
systemHealth OBJECT-TYPE
SYNTAX INTEGER {
healthy (10000),
degraded (30000),
admissionControl (31000),
critical (50000)
}