Optometry/Ophthalmology Coding:
Dig the Diurnal Curve Testing Code Out of the CPT® Code Book
Published on Tue Sep 16, 2025
Question: Our ophthalmologist evaluated intraocular pressures (IOPs) over 12 hours and documented the measurements. The provider described the procedure as “diurnal curve testing,” but I’m not sure what that means. What code should I use to report diurnal curve testing? Kansas Subscriber Answer: Assign 92100 (Serial tonometry (separate procedure) with multiple measurements of intraocular pressure over an extended time period [...]