Physical therapy medical billing is governed by strict, time-based rules — Medicare’s 8-minute rule determines how many billable units a session actually earns, annual therapy thresholds require specific modifiers once exceeded, and plans of care must be recertified on a fixed schedule. Getting any one of these wrong is a common, recurring source of denied or reduced-payment claims. TBC Solutions provides dedicated physical therapy billing built around these exact rules.
Why Physical Therapy Billing Is Different
- Timed procedure codes (97110 therapeutic exercise, 97140 manual therapy, 97530 therapeutic activities, and others) are billed in units governed by Medicare’s 8-minute rule — miscounting time is one of the most common, and most auditable, PT billing errors.
- Medicare’s annual therapy threshold requires the KX modifier once a patient’s care exceeds the cap, and missing this modifier results in automatic denial for services beyond the threshold.
- Plans of care must be certified by a physician and recertified on a fixed schedule (typically every 90 days) — a lapsed recertification can invalidate billing for services provided after the lapse.
- Same-visit distinct procedures require modifier -59 or the more specific -XS/-XE/-XP/-XU modifiers to avoid one procedure being bundled into another and denied.
Our Physical Therapy Medical Billing Services
Charge Entry & Coding
Accurate CPT/ICD-10 coding by coders trained specifically in this specialty’s code sets and payer edits.
Claims Submission & Scrubbing
Every claim is scrubbed against payer-specific edits before submission to catch errors before they become denials.
Denial Management & Appeals
Denied claims are tracked, corrected, and appealed — not just resubmitted blind.
Payment Posting & Reconciliation
Payments are posted and reconciled against contracted rates to catch underpayments, not just track deposits.
Credentialing & Payer Enrollment
We handle payer enrollment and re-credentialing so billing isn’t interrupted by lapsed enrollment.
Patient Statements & Support
Clear, accurate patient statements and support fielding billing questions, reducing patient billing complaints.
Reporting & Analytics
Regular, transparent reporting on collections, denials, and days in accounts receivable — no black-box billing.
Common Physical Therapy Billing Challenges We Solve
8-minute rule unit miscounting
We calculate billable units from documented treatment time using Medicare’s 8-minute rule precisely, since miscounted units are one of the most common and easily audited PT billing errors.
Therapy cap / KX modifier tracking
We track each patient’s progress toward the annual therapy threshold and apply the KX modifier proactively, rather than after a claim is already denied.
Plan of care recertification lapses
We track recertification deadlines so a lapsed plan of care doesn’t invalidate billing for services already delivered.
Same-visit distinct procedure bundling
We apply the correct modifier (-59 or more specific -X modifiers) so distinct procedures performed in the same visit are reimbursed rather than bundled and denied.
Our Process
- Free Practice Audit: We review a sample of your recent claims, denial patterns, and current billing workflow at no cost and with no obligation.
- Onboarding & EHR/PM Integration: We integrate with your existing EHR/practice management system — no need to switch software.
- Coding & Claims Submission: Claims are coded and submitted using the specialty-specific rules covered in this document.
- Denial Management: Denied claims are corrected and appealed promptly, with root-cause tracking so the same denial doesn’t recur.
- Reporting & Optimization: Ongoing reporting identifies further revenue opportunities as your practice and payer mix evolve.
Why Practices Choose TBC Solutions for Physical Therapy Billing
- Coders trained on this specialty’s specific code sets, modifiers, and payer edits — not generalist billing applied to every specialty the same way.
- HIPAA-compliant handling of all patient and claims data, from intake through reporting.
- Transparent, regular reporting — you always know what was billed, what was paid, and what’s outstanding.
- A dedicated point of contact, not a rotating support queue.
Frequently Asked Questions
What is the 8-minute rule and why does it matter for billing?
It’s the Medicare rule that determines how many billable units a timed treatment session earns based on documented minutes. Miscounting under this rule is one of the most common PT billing errors — we calculate it precisely on every claim.
Do you track the Medicare therapy cap for us?
Yes — we track each patient’s progress toward the annual therapy threshold and apply the required KX modifier proactively so claims aren’t denied once the cap is reached.
What happens if our plan of care recertification lapses?
Services billed after a lapsed recertification can be denied or subject to recoupment. We track recertification deadlines so this doesn’t happen.
Can you bill for multiple distinct procedures in the same visit?
Yes — we apply the correct modifier (-59 or the more specific -X modifiers) so distinct procedures are reimbursed rather than incorrectly bundled.
Do you work with outpatient PT clinics as well as PT departments inside larger practices?
Yes — our billing supports both independent outpatient PT clinics and PT services operating within multi-specialty or orthopedic practices.
What’s included in a free physical therapy billing audit?
We review a sample of recent claims for unit-counting accuracy, modifier use, and recertification tracking to identify specific, fixable revenue leaks.
Get Started
Ready to stop losing revenue to preventable physical therapy billing denials? Book a Free Physical Therapy Billing Audit with TBC Solutions.