Add modifiers and units where they apply
A missing modifier or a wrong unit count is one of the most common reasons claims bounce, and one of the easiest to prevent. Most practices only ever use a handful.
- The appointment booked with the right Service (Lesson 6.2)
- Your practice's modifier and unit rules, agreed against your payer contracts
What modifiers and units do
A modifier is a two-character addition to a CPT code that tells the payer something about the session: that it was telehealth, say, or the provider's licence level.
Units are how many of the code you're billing. Most sessions go out as 1, but a 15 minute code for an hour-long session goes out as 4.
Where they go
- Open the appointment → View.
- Expand Billing details.
- Edit the units, add any modifiers and payer specifics, Save.
The same panel lets you adjust the service, the price, or switch the visit to self-pay, so one stop after the session covers any correction.
Write your list once
Most practices apply the same few rules to nearly every claim:
- Telehealth modifiers such as 95 or GT, where your payers require them
- Clinician-level modifiers such as HO, where the payer expects them
- Units above one for time-based codes
- One payer that wants something different from your default
The list comes from your payer contracts or your biller, not from guesswork. Set the recurring ones as defaults on the Service so they fill themselves in, and use the appointment-level edit for the exceptions.
Tick these off in your own workspace before moving on.
Three rule sets practices run on.
The specific codes matter less than having a short, written list.
Modifier 95 sits on the telehealth Services for the payers that require it. Set once, applied every time.
Master's-level clinicians append HO where the payer expects it, and the rule lives on their Services.
Defaults cover everyone except one payer that wants it differently. That exception is written down and applied only to them.
Do all claims need modifiers?
No, plenty go out with none. They only apply where the circumstances call for one and the payer requires it.
Who decides which ones my practice needs?
Your payer contracts and provider manuals, or your biller if you have one. It's not worth guessing: a wrong modifier causes the same trouble as a missing one.
A claim went out with a wrong or missing modifier. Now what?
Fix the claim and resubmit, which is free. Then update the Service default so the same gap doesn't come back.
Can different payers want different modifiers for the same service?
Yes, and it's common. Keep your default for most payers and note the exception against the one that differs.