How to Recover Lost Revenue From Unpaid PT Claims and Old A/R
Physical therapy practices don't always lose revenue because patients aren't paying. Sometimes, money that has already been earned is sitting in unpaid insurance claims, denied claims, rejected claims, underpayments, or old accounts receivable.
A claim that remains unresolved for 30 days may still be manageable. But when accounts reach 90, 120, or more days, the likelihood of collecting the full amount can become more challenging.
For a busy PT practice, old A/R can quietly become one of the biggest sources of revenue leakage. The solution isn't simply to call insurance companies more often. A successful PT A/R recovery process starts by identifying why claims remain unpaid, prioritizing accounts based on value and age, taking the appropriate corrective action, and preventing the same problems from recurring.
In This Guide
- What Is Old A/R in Physical Therapy Billing?
- Why Do PT Claims Become Old A/R?
- Analyze Your PT A/R Aging Report
- Prioritize the Claims Most Likely to Be Recovered
- Find Out What Happened to the Claim
- Correct Rejected and Denied PT Claims
- Review High-Value Underpayments
- Work With the Payer and Document Everything
- Don't Let New A/R Become Old A/R
- How Can PT Practices Reduce Old A/R?
- When Should a PT Practice Get Help With Old A/R?
- A Simple PT A/R Recovery Checklist
- Frequently Asked Questions
1. What Is Old A/R in Physical Therapy Billing?
Accounts receivable (A/R) represents money owed to the physical therapy practice for services that have already been provided but have not yet been collected.
A/R can include:
- Unpaid insurance claims
- Denied claims
- Rejected claims
- Claims awaiting additional information
- Underpaid claims
- Patient balances
- Claims requiring appeals
- Claims that have received no payer response
A/R is commonly divided into aging categories such as 0–30 days, 31–60 days, 61–90 days, 91–120 days, and 120+ days.
2. Why Do PT Claims Become Old A/R?
Before trying to recover old A/R, your billing team needs to understand why the account remains unpaid.
Common causes include:
- Claim denials
- Claim rejections
- Missing authorization
- Insurance eligibility problems
- Coding or modifier errors
- Documentation issues
- Timely filing problems
- Underpayments
Understanding the reason behind the unpaid balance is the first step toward recovery.
3. Analyze Your PT A/R Aging Report
Don't start by randomly calling payers about old claims. Start with your A/R aging report.
Review:
- Total A/R
- Insurance A/R
- Patient A/R
- A/R over 60 days
- A/R over 90 days
- A/R over 120 days
- High-dollar unpaid claims
- Payer-specific A/R
- Denial-related A/R
This helps identify where the largest recovery opportunities are.
4. Prioritize the Claims Most Likely to Be Recovered
Not every old account should receive the same amount of attention. Prioritize based on age, dollar value, payer, denial reason, and collectability.
High-value claims with a clear path to resolution should generally receive immediate attention. The goal is to spend billing resources where they have the greatest potential financial impact.
5. Find Out What Happened to the Claim
For every old insurance claim, determine its current status.
Ask whether the claim was:
- Received
- Accepted
- Rejected
- Denied
- Held for additional information
- Paid
- Posted correctly
- Sent to the wrong payer
- Eligible for correction or appeal
6. Correct Rejected and Denied PT Claims
If the claim contains a correctable problem, fix it as quickly as possible.
Depending on the payer response, this may involve correcting patient or insurance information, coding, modifiers, units, documentation, or authorization information, then resubmitting or appealing when appropriate.
The important thing is to address the actual cause rather than repeatedly resubmitting the same incorrect claim.
Review the payer response.
Determine the actual issue.
Make the required correction.
Take the appropriate next action.
Follow through to resolution.
7. Review High-Value Underpayments
Old A/R isn't always made up of completely unpaid claims. Some revenue may be sitting in underpaid claims.
Your billing team should identify:
- Unexpected reimbursement amounts
- Incorrect contractual adjustments
- Partial payments
- Missing line-item payments
- Repeated payer-specific payment discrepancies
Even small underpayments can become significant when repeated across a large number of PT claims.
8. Work With the Payer and Document Everything
A/R follow-up shouldn't consist of repeated phone calls without documentation.
For meaningful follow-up, record:
- Date of contact
- Payer
- Representative or reference information when available
- Claim status
- Reason for nonpayment
- Action required
- Appeal or resubmission status
- Expected next step
- Follow-up date
9. Don't Let New A/R Become Old A/R
Recovering old A/R is only half the solution.
Your PT practice should monitor:
- Clean claim rate
- Denial rate
- Rejection rate
- Days in A/R
- A/R over 90 days
- Claim submission turnaround
- Denial recovery rate
- Net collection rate
If authorization-related denials continue to increase, fix the authorization workflow. If eligibility denials recur, review front-end verification. If coding denials are common, investigate coding and documentation processes.
The best A/R strategy is prevention combined with recovery.
10. How Can PT Practices Reduce Old A/R?
Before the visit:
- Verify eligibility
- Confirm PT benefits
- Check authorization requirements
- Confirm referral requirements
During treatment:
- Maintain appropriate documentation
- Record treatment time accurately
- Track patient progress
Before submission:
- Review patient information
- Verify coding
- Check units and modifiers
- Confirm authorization information
After submission:
- Monitor claim acceptance
- Work rejections promptly
- Track denials
- Follow up on unpaid claims
- Review payment accuracy
- Escalate old A/R
11. When Should a PT Practice Get Help With Old A/R?
Consider reviewing your billing operation if you notice:
- Increasing 90+ day A/R
- Large amounts of 120+ day A/R
- Repeated claim denials
- Unworked rejected claims
- Authorization-related problems
- Slow claim submission
- Unresolved payer balances
- Unexplained payment variances
- Billing staff spending most of their time on old accounts
- Limited visibility into A/R performance
An experienced medical billing team can help review unpaid PT claims, denial patterns, aging A/R, payer issues, and follow-up workflows to identify potential recovery opportunities and processes that may be contributing to aging A/R.
Is Your PT Practice Sitting on Unpaid Claims or Old A/R?
Our medical billing team can review your PT A/R aging, unpaid claims, denial patterns, and billing workflow to identify accounts that may have recovery opportunities.
12. A Simple PT A/R Recovery Checklist
- How much total A/R does our PT practice have?
- How much is over 90 days?
- How much is over 120 days?
- What are our top reasons for unpaid claims?
- Which payers represent the largest portion of old A/R?
- How many denied claims are still recoverable?
- Are high-value claims being prioritized?
- Are underpayments being identified?
- Are old claims assigned to a specific person or team?
- What steps are being taken to prevent new A/R from aging?
Recovering Old A/R Is Only Part of the Solution
Old A/R can represent revenue that your physical therapy practice has already earned but hasn't collected. However, simply working older accounts isn't enough. The bigger opportunity is to understand why those accounts became old in the first place.
If eligibility issues, authorization problems, coding errors, documentation gaps, or slow follow-up are repeatedly creating unpaid claims, correcting those processes can have a much greater long-term impact.
13. Frequently Asked Questions
What is old A/R in physical therapy billing?
Old A/R refers to outstanding balances that have remained unpaid for an extended period. In PT billing, this can include unpaid insurance claims, denied claims, underpayments, and outstanding patient balances.
How can a physical therapy practice recover unpaid claims?
The practice should review its A/R aging report, identify the reason each claim remains unpaid, prioritize recoverable accounts, correct claim issues, resubmit or appeal when appropriate, and follow up until resolution.
Why do PT claims remain unpaid?
Common reasons include eligibility problems, authorization issues, coding errors, documentation requirements, claim rejections, denials, incorrect payer information, timely filing issues, and payment discrepancies.
When should a PT practice work on 90+ day A/R?
90+ day accounts should generally receive active attention because they have remained unresolved for a significant period. The appropriate action depends on the payer, claim status, filing requirements, and collectability.
How can a PT practice prevent A/R from becoming old?
Practices can reduce aging A/R through accurate eligibility verification, authorization tracking, clean claim submission, prompt rejection and denial management, payment review, and consistent follow-up.
Can a medical billing company help recover old PT A/R?
Yes. A medical billing company can review aging A/R, investigate unpaid claims, manage denials and appeals when appropriate, follow up with payers, identify payment issues, and help strengthen the processes contributing to aging A/R.