# Physical Therapy Billing Services | PT Medical Billing & RCM | PRMS

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Physical Therapy Billing

# Physical Therapy Medical Billing Services

Physical therapy billing turns on timed codes, the 8-minute rule, and Medicare thresholds. Our certified coders specialize in therapy so your units are counted correctly and your claims get paid.

[Get a Free Physical Therapy Billing Audit](https://prmsbs.com/contact)

We handle physical therapy billing end to end, evaluations, timed treatment, plan-of-care compliance, and threshold management. Because PT revenue depends on correct unit counting under the 8-minute rule and strict documentation requirements, a specialty-trained team is what prevents the denials and audits common in therapy.

## Physical Therapy billing we handle

- **Timed treatment codes.** 97110, 97112, 97140, 97530 with correct units.
- **Modalities.** Electrical stimulation, ultrasound, mechanical traction, and other supervised and constant-attendance modalities.
- **Gait, aquatic & group therapy.** Gait training (97116), aquatic therapy (97113), and group therapy (97150).
- **Re-evaluations.** Progress re-evaluations (97164) coded when the plan of care changes.
- **OT & speech therapy.** Occupational (GO) and speech-language (GN) services with the correct discipline modifiers.
- **Dry needling.** 20560 and 20561 coded per payer coverage.
- **The 8-minute rule.** Units calculated correctly from total timed minutes.
- **Evaluations.** Low/moderate/high complexity PT evaluations coded correctly.
- **Plan of care.** Certification and recertification tracked for compliance.
- **KX modifier & thresholds.** Applied when medically necessary beyond the threshold.
- **Modifier 59 / GP.** Distinct-service and discipline modifiers applied correctly.

**The 8-minute rule.** Timed PT codes are billed in 15-minute units, but the number of units depends on the total timed minutes under the 8-minute rule. Miscount the units and you either lose revenue or trigger an audit, we count them precisely.

## Why physical therapy practices lose revenue

The usual losses: incorrect unit counts under the 8-minute rule, missing or expired plan-of-care certification, KX modifier errors beyond the threshold, and missing modifier 59. PT-trained coders and documentation review prevent each.

## What you get with PRMS

### Unit accuracy

Timed codes counted correctly under the 8-minute rule, no lost or over-billed units.

### Threshold management

KX modifier and threshold rules applied so medically necessary care is paid.

### Plan-of-care compliance

Certification and recertification tracked to prevent denials and audits.

## Physical Therapy billing FAQs

**What is the 8-minute rule in PT billing?

Timed physical therapy codes are billed in 15-minute units, and the 8-minute rule determines how many units the total timed minutes support. Correct application is essential to compliant billing, miscounting causes lost revenue or audit exposure.

**Do you handle the KX modifier and therapy thresholds?

Yes. When medically necessary services exceed the annual threshold, we apply the KX modifier with supporting documentation so care continues to be paid.

**Do you track plan-of-care certification?

Yes. We track certification and recertification deadlines so claims aren't denied for an expired or missing plan of care.

**How soon will results show?

Most PT clinics see cleaner timed-code claims and fewer unit-related denials within the first one to two billing cycles.

## Related services & specialties

Explore our full [billing, coding & denial management services](https://prmsbs.com/services) and [provider credentialing](https://prmsbs.com/medical-credentialing/), or see other specialties including [chiropractic](https://prmsbs.com/specialties/chiropractic-billing/) and [more](https://prmsbs.com/specialties/).