You can identify minor injuries according to the standard.
Fourteenth facial soft tissue single wound length of 3.5 cm (3 cm for children), or wound cumulative length of 5 cm (4 cm for children) or maxillofacial penetrating injury.
Fifteenth facial trauma has obvious scars, with a single length of 3 cm or a cumulative length of 4 cm; A single area of 2 square centimeters or a cumulative area of 3 square centimeters; The pigment affecting the face changes by 6 square centimeters.
The provisions of these two articles preliminarily judge whether it may constitute minor injuries.
Whether minor injuries can only be identified by forensic doctors and used as evidence can only give you a reference answer here. You can't rule out the possibility that some forensic experts bend the law, but if you have any objection to minor injuries, you can ask for a new appraisal, which the original appraiser can't do.
There will be economic compensation. If Party A is really the wrong person.
You should lose less.