I Am A Medical Technologist Working For A Neurologist. Working

I am a medical technologist working for a Neurologist. Working on helping patient's to get Dysport injections for cervical dystonia and/or upper limb spasticity. I don't think the current diagnosis codes that are being used are correct. Can you please tell the diagnosis codes for cervical dystonia or upper limb spasticity? Again, if this question is "weird" I am just learning.. Sorry

Thank you
Alicia Wiliams