This is an interesting question...however, I would not code 37202/75896 for treatment (by a physician) of vasospam during a revascularization procedure since the intervention (37226 etc) includes whatever reasonable work necessary to achieve desired result.
Also, 96374 is "not intented to be reported by the physician in the facility setting" per cpt description in the instructions at the beginning of section on Therapeutic, Prophylactic and Diagnostic Injections and Infusions. Is this "push" being performed by staff in a hospital?
This is just my opinion, not my specialty so maybe someone else can chime in with a better response.
HTH