H2019 and H2020: Therapeutic Behavioral Services Billing
Therapeutic behavioral services help children and adults with serious behavioral needs, often in the home or community, through intensive, short-term work on specific behaviors. The same service has two codes, one per 15 minutes and one per day, and picking the wrong unit for the program is a common denial.
Short answer
H2019 is "Therapeutic behavioral services, per 15 minutes." H2020 is "Therapeutic behavioral services, per diem." They describe the same service with different units. Your state or managed care contract specifies which unit a program bills, along with who may deliver it, authorization, and caps.
What each code covers
| Code | Federal descriptor | Unit |
|---|---|---|
| H2019 | Therapeutic behavioral services, per 15 minutes | 15 minutes |
| H2020 | Therapeutic behavioral services, per diem | Per day |
Which unit applies
Time-based programs, where staff work with a person for defined blocks, bill H2019. Day programs or intensive models with a daily rate bill H2020. A program is contracted for one or the other, so the code on the claim must match the program's contract, not the length of a particular day.
What a billable note shows
The target behavior from the plan, the intervention used, the person's response, and data on the behavior where the plan calls for it, with times for H2019 or attendance for H2020. Many programs that bill these codes serve children, so notes often need to reflect caregiver involvement as well.
Common denials
- Wrong unit for the program. H2019 billed by a per-diem program, or the reverse.
- Authorization exceeded. Units or days past what was authorized.
- Plan does not list the target behavior. Interventions without a matching plan goal.
- Age or program modifier missing. Where the state requires HA or a program modifier. See licensure and program modifiers.
The full code map is in H codes in behavioral health.
Federal HCPCS descriptors only. Your state Medicaid manual and each managed care contract define who may render the service, unit rules, caps, and rates. Verify against current guidance before billing.
Frequently asked questions
What is H2019?
Therapeutic behavioral services, per 15 minutes: intensive, short-term work on specific target behaviors under a treatment plan, billed in 15-minute units.
What is the difference between H2019 and H2020?
The unit. H2019 is per 15 minutes and H2020 is per diem. The state or managed care contract specifies which one a program bills.
Do therapeutic behavioral services need prior authorization?
Usually. Most state programs require authorization and periodic review, with limits on units or days.
What should an H2019 note include?
The target behavior, the intervention, the person's response, and behavior data where the plan calls for it, with times that support the units billed.
The right unit, on every claim.
See Stable check codes, units, and authorizations against each program's contract before submission.
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