What it is:
Box 24g is used to indicate the number of days corresponding to the dates entered in 24A or units as defined in CPT or HCPCS coding manual(s). Enter the number of days or units. This field is most commonly used for multiple visits, units of supplies, anesthesia units or minutes, or oxygen volume. If only one service is performed, the numeral 1 must be entered. Enter numbers left justified in the field. No leading zeros are required. If reporting a fraction of a unit, use the decimal point.
Therabill will use the Units from the Billing & Coding section of the Edit Session dialog to populate box 24g.
From the dashboard click on the green New Session button. You will be on the Entering New Session page. Enter the number of units in the Units field for the services that will be/were performed.