What statements reflect coding guideline advice for reporting coma codes? Select all that apply.

A. The coma scale codes (R40.2-) can be used in conjunction with traumatic brain injury codes
B. They are primarily for use by trauma registries
C. The codes should be sequenced after the diagnosis code(s).
D. When reported, these codes, one from each of the three subcategory, are needed to complete the scale
E. The 7th character indicates when the scale was recorded
F. The 7th character should match for all three codes that are reported at a particular point in time