Modifier 96 vs Modifier 97: Understanding Habilitative and Rehabilitative Therapy Billing

Every therapy session has a clear goal, whether it's helping a patient develop a new skill or regain one they once had. Your claim should reflect that goal just as clearly. That's where Modifier 96 and Modifier 97 come in. 

Understanding the difference between habilitative vs rehabilitative therapy is essential for therapy providers, billing teams, and revenue cycle professionals. Whether your practice provides speech therapy, occupational therapy, physical therapy, or other rehabilitation services, applying these modifiers correctly helps ensure claims are processed under the appropriate insurance benefit.

What is modifier 96 in habilitative therapy billing

Modifier 96 tells the payer that the service is habilitative therapy, meaning the patient is learning or developing a skill they have never had before. Instead of restoring a lost ability, habilitative therapy focuses on building a new functional skill.

The 96 modifier description applies to services provided for patients with developmental conditions, congenital disorders, or delayed milestones.

When and How to Apply Modifier 96

Use Modifier 96 when the purpose of therapy is to help the patient develop a skill they have never previously achieved. The treatment should focus on skill acquisition rather than restoring an ability that was lost because of illness or injury.

Modifier 96 may apply to physical therapy, occupational therapy, speech-language therapy, ABA therapy, and other habilitative services when the payer requires it.

Before billing Modifier 96, the medical record should clearly document:

• The patient's developmental condition or diagnosis.

• The functional skill that has not yet been acquired.

• Baseline findings that support the need for habilitative therapy.

• Treatment goals focused on learning or developing new skills.

• Objective progress and continued medical necessity.

For example, documentation stating that a patient has not yet developed independent functional communication and that therapy is focused on teaching that skill provides stronger support than a general treatment goal. Since payer requirements vary, always confirm that Modifier 96 is accepted before submitting the claim.

What is Modifier 97 in Rehabilitative Therapy Billing

Modifier 97 identifies rehabilitative therapy services. Unlike habilitative care, rehabilitation focuses on helping a patient recover a skill they previously had but lost because of an illness, injury, surgery, or medical condition.

The 97 modifier description tells the payer that therapy is restoring function rather than teaching a new skill.

Patients receiving rehabilitative therapy often have a documented decline in function followed by a treatment plan designed to help them regain independence.

When and How to Apply Modifier 97

Use Modifier 97 when the medical record shows that the patient had the functional ability before and is now receiving therapy to regain it.

Documentation should clearly include:

• The patient's prior level of function.

• The illness, injury, or surgery that caused the functional decline.

• Current functional limitations compared with the previous baseline.

• Treatment goals focused on restoring the lost ability.

• Objective progress and continued medical necessity.

For example, documentation stating that a patient was able to transfer independently before a hip fracture but now requires assistance after surgery, with therapy aimed at restoring independent transfers, clearly supports the use of Modifier 97.

Modifier 96 vs modifier 97: what's the difference

Both modifiers attach to the same universe of CPT codes. What changes is the story behind the treatment.

Modifier 96	Modifier 97
Habilitative therapy	Rehabilitative therapy
Develops new functional skills	Restores previously acquired skills
Often used in pediatrics	Common in adult rehabilitation
Developmental conditions	Injury, illness, surgery
Learning abilities	Regaining abilities

The CPT code rarely changes. The modifier is what tells the payer which bucket the visit counts against.

Do Medicare plans require modifier 96 or 97

Medicare Part B doesn't always require modifier 96 or modifier 97 on outpatient therapy claims. It depends on your Medicare Administrative Contractor. Call your MAC and check before you assume either modifier is optional, because guessing here gets expensive. Read more to learn more about the Medicare parts.

Commercial payers play by different rules. CMS rolled out both modifiers on January 1, 2018, replacing the old SZ modifier that used to flag habilitative care. Most commercial plans now use modifier 96 and modifier 97 to keep habilitative and rehabilitative visit limits separate, a rule that goes back to the ACA's essential health benefits requirements.

One MAC's answer isn't the next payer's answer. And one commercial plan's rule doesn't carry over to the next plan either. Pull up the actual payer policy every single time a new plan lands on your desk.

Real-world examples: same code, different modifier

Two ABA cases make this easy to picture.

A 4-year-old with autism spectrum disorder gets adaptive behavior treatment under CPT 97153. He's never touched a communication device before, and the entire plan is built around teaching that skill from zero. Modifier 96, no question. Most ABA cases land here, because the whole therapy model exists to build skills that never showed up on their own.

Now look at two occupational therapy patients, same CPT code 97530. Patient A is a 6-year-old with Down syndrome learning to hold a fork for the first time. Patient B is a 58-year-old regaining grip strength after a wrist fracture. Same code. Same description on the claim form. Patient A pulls modifier 96 because that skill never existed before. Patient B pulls modifier 97 because he's getting back something he already had.

Billing teams, take note: the CPT code never picks the modifier. The patient's history picks it every time.

FAQ

1. What is the modifier for habilitative services?

Modifier 96. It flags therapy that's building a skill the patient never had, rather than restoring one.

2. What is the difference between habilitative and rehabilitative modifiers?

Modifier 96 goes on habilitative therapy. Modifier 97 goes on rehabilitative therapy. One builds a new skill, the other gets back a skill the patient already had.

3. How do you write a CPT code with a modifier?

Add the modifier right after the CPT code with a hyphen. 92507-96. 97110-97. That two-digit tag tells the payer whether they're looking at habilitative or rehabilitative care.

4. Do modifier 96 and modifier 97 affect insurance limits?

Yes. A lot of plans track habilitative and rehabilitative therapy as two separate benefits, each with its own visit cap. Slap the wrong modifier on a claim, and those visits count against the wrong bucket. That's how a patient can run out of therapy benefits before treatment is actually completed.