I'm in need of some help regarding coding for Acupuncture.

When billing Acupuncture for work comp, does anybody know if CPT 97800 and 97801 has a "time" increment requirement? As far as I can tell by researching the OMFS these two codes are NOT included in the "30 minute" classification. Also, if no time limit specified, does anybody know when/how the CPT 97145 could or would be utilized if there were a circumstance that warranted additional care. (97145 is specified as 15 minute increment.)

I appreciate ANY help/guidance any of you can give.