An established 47 year-old patient presents to the provider's office after falling last night in her apartment when she slipped in water on the kitchen floor. she is complaining of low back pain and no tingling or numbness. provider documents that she has full range motion of the spine, with discomfort. her gait is within normal limits. straight leg raising is negative. she requested no medication. it is recommended to use heat, such as a hot water bottle. provider's assessment: lower back muscle strain. what e/m and icd-10-cm codes are reported for this service?