A50 year-old male is coming in for an eye examination for iritis. his last visit to the office was two years ago. the ophthalmologist performs a review of history, external ocular and adnexal examination, routine ophthalmoscopy and a biomicroscopy. iritis is not found. the eye examination is completely normal. what cpt® and icd-10-cm codes are reported? a. 92014, 92225, z01.00 b. 92012, 92225, z01.01 c. 92002, z01.110 d. 92012, z01.00

b. 92012, 92225, Z01.01

CPT 92012 is the code for ophthalmological services that includes general medical examination and evaluation, with initiation or continuation of diagnostic and treatment program to intermediate and established patients.

CPT 92225 is the service code for ophthalmoscopy that is extended, with retinal drawing for initial evaluation of the disease.

ICD-10-CM Diagnosis Code Z01.01is billable/specific and can be used for diagnosis indication and reimbursement.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!