Hi tcfd1vldg!

No problem!

Starting off the with diagnosis code(s). The one you listed:
W50.0XXA - Accidental hit or strike by another person, initial encounter

Since this is a case stemming from a childhood trauma, you may want to consider:
W50.0XXS - Accidental hit or strike by another person, sequela

You may also want to considering coding the trauma to the mouth/teeth. For example, here are come oral trauma related ICD-10 codes:
K03.81 - Cracked tooth
S02.5XXA - Fracture of tooth (traumatic), initial encounter for closed fracture
S02.5XXB - Fracture of tooth (traumatic), initial encounter for open fracture
K08.411 - Partial loss of teeth due to trauma, class I
K08.412 - Partial loss of teeth due to trauma, class II
K08.413 - Partial loss of teeth due to trauma, class III
K08.414 - Partial loss of teeth due to trauma, class IV
K08.419 - Partial loss of teeth due to trauma, unspecified class

Then, for the crowding:
M26.31 - Crowding of fully erupted teeth

So, all the diagnosis codes you select will be entered in box 21 of the CMS1500 claim form.

As for the procedures, those codes (CPT) will be entered in box 24.

Bone grafting:
21210 - Graft, bone; nasal, maxillary or malar areas (includes obtaining graft)
21215 - Graft, bone; mandible (includes obtaining graft)
**use modifier -52 for reduced services when bone is not obtained from patient

Implants:
21248 - Reconstruction of mandible or maxilla, endosteal implant (eg, blade, cylinder); partial(3 or less)
21249 - Reconstruction of mandible or maxilla, endosteal implant (eg, blade, cylinder); complete (4 or more)

Crown:
Crowns do not have a direct crosscode we are aware of, so you can either bill the "D" code on the medical claim (many insurers these days will process "D" codes when they are medically necessary services), or you can try the CPT code below and include a narrative report describing the procedure:
41899 - Unlisted procedure, dentoalveolar structures

Hope this helps!