The difference is based on how many substances a test is testing for
GERD Diet Info What is the GERD Diet
When the RUC-recommended intraservice and total times (not including the post-operative visit time for CPT code 15XX5) for all the units billed on the same date of service as sequential service parts are summed, the intraservice time totals to 399 minutes and total time (not including the post-operative visit time included in the global period for CPT code 15XX5) totals to 529 minutes
Indeed, the effect of ETS exposure on the risk of lung cancer among smokers is clear and significant.19,20 Furthermore, according to the results of the International Lung Cancer Consortium,20 the risk of a smoker not exposed to ETS developing lung cancer is 2.83 (2.483.22), while for an exposed smoker, it is 4.79 (4.325.32)
If the patient currently uses tobacco but there is no evidence of dependence, the documentation should reflect simple tobacco use rather than addiction