The code is generally a letter followed by a two (or three) digit number (e.g., F90)
The modifier is the number that appears after the decimal point (e.g., .2)
EXAMPLE: To create the diagnosis code for F90.2, you would enter F90 in the Code field and 2 in the modifier field. DO NOT include the decimal point in the modifier field.
You can reference the
ICD-10 Database to determine the appropriate codes, modifiers, and descriptions.