Monitoring LB resopenses count for each HTTP code

do you know is it possible to publish this values to SNMP OIDs?

unfortunately, it is not available through snmp yet. there is rfe. you may open a case to expedite the process.

ID380761 - RFE: export iStats via SNMP

in the meantime, you may try stats profile instead but stats has to be predefined (not like istats which can be created on the fly).

10.0, statistics profiles are not fully CMP compatible. Each TMM instance uses a separate instance of the statistic profile. The cumulative counts are shown in the GUI and when polled via SNMP.

CMP Compatibility