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Physical Therapy Billing

Physical Therapy Billing That Captures Every Dollar You've Earned

8-minute rule accuracy, therapy cap tracking, and a dedicated OON negotiation layer built for physical therapy — so every unit is reimbursed at the level it deserves.

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Up to 6×
OON Recovery
Medicare Rate
100%
8-Min Rule
Compliant
98%+
Clean Claims
First Pass
🦴 The Challenge

The Physical Therapy
Billing Challenge

Physical therapy billing revolves around the 8-minute rule for timed CPT codes, where incorrect unit calculation is the most common cause of PT claim underpayment. Therapy cap tracking requires ongoing monitoring against payer-specific limits. Documentation must support medical necessity for every visit, and payers increasingly require progress notes with specific functional outcome measures to authorize continued treatment.

Our Approach

What REL1EF Does Differently

8-minute rule accuracy for every timed code unit
Therapy cap tracking and exception documentation
Functional outcome documentation to support medical necessity
OON Upside

The OON Opportunity
in Physical Therapy

Physical therapy practices with OON patients often accept initial payer offers without negotiation, leaving significant revenue on the table. REL1EF's dedicated negotiation layer recovers up to 6× Medicare rates on PT OON claims — the same timed code units that payer vendors routinely reprice to a fraction of billed charges.

Physical Therapy OON Reimbursement — Same Units
Medicare Baseline1×
Unmanaged OON0.8–1.2×
REL1EF Negotiated OONUp to 6×
Based on UCR benchmarking & Fair Health data. Results vary by payer and geography.
Scope

Services Included

8-Minute Rule Compliance Timed Code Billing Therapy Cap Tracking Functional Outcome Documentation Evaluation Code Selection Re-Evaluation Billing OON Negotiation Prior Authorization Denial Management A/R Recovery
Physical Therapy Coding & Denials

Physical Therapy: Timed Codes & the 8-Minute Rule

Physical therapy billing is dominated by timed therapeutic codes — therapeutic exercise (97110), neuromuscular re-education (97112), manual therapy (97140), therapeutic activities (97530) — billed in 15-minute units under Medicare's 8-minute rule, which determines how total treatment minutes convert to billable units. Miscounting minutes, or billing untimed codes like the evaluation (97161–97163) or unattended e-stim (97014) as timed units, is the most common PT coding error and a frequent audit target.

Medicare's therapy threshold (formerly the "therapy cap") requires the KX modifier once a patient exceeds the annual dollar amount, attesting medical necessity, with targeted medical review above a higher threshold. Discipline modifiers GP (PT) and GO (OT), and modifier 59 to unbundle manual therapy from exercise, must be applied correctly, and every plan of care needs physician certification within the required window or the entire episode becomes non-payable.

REL1EF counts treatment minutes to the 8-minute rule, applies KX/GP/59 correctly, and tracks plan-of-care certification dates so episodes stay payable. Denial work targets the PT patterns that age A/R: certification lapses, threshold and KX edits, and 59-modifier bundling — recovered with the daily treatment notes rather than blind resubmission.

Get Started

No-Win, No-Fee
Physical Therapy Billing

Start with the free A/R recovery trial to see our work firsthand — or contact us directly about physical therapy billing services.

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✓No-win, no-fee A/R recovery trial
✓HIPAA compliant · BAA signed before access
✓8-minute rule compliance built in
✓Works with 50+ EHR systems
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Physical Therapy FAQ

Physical Therapy
Billing Questions

Common questions about PT billing, the 8-minute rule, and therapy cap management.

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The 8-minute rule determines how many units of timed CPT codes can be billed per session. A minimum of 8 minutes must be spent on a service to bill one unit, and additional units follow specific time thresholds. Incorrect unit calculation is the most common cause of PT claim underpayment. REL1EF ensures every timed code is billed to the correct number of units based on documented treatment time.
Therapy caps set payer-specific dollar limits on annual physical therapy services. Once a patient approaches the cap, additional services require exception documentation proving medical necessity. REL1EF tracks each patient's cap status in real time, prepares exception requests proactively, and ensures claims are submitted with proper KX modifiers to prevent denials.
Payers require progress notes with specific functional outcome measures — including standardized tests, measurable goals, and documented improvement — to authorize continued treatment. REL1EF works with your clinical team to ensure documentation supports every visit with the functional data payers require for approval.
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