This may be the strongest emotion expressed in the whole mood code. Code 10/16 is very much stronger than code 10/14, which is a sort of sulk. Code 10/16 is a rage, even though things are not thrown about.
Some people are good at the histrionics of rage: shouting, glaring, throwing things, stamping, etc. Other people may feel just as angry but do not have such a repertoire of activities. Code 10/16 allows this quieter sort of person to indicate 'rage'.

Rage is not a sustainable mood, so it is important to point out the cause of the rage before the mood passes. You can wait to be asked or you can define the cause: 10/16 over the way they cheated on that contract.' '10/16 over these escalating expenses.'