Accounts receivable in medical billing refers to the outstanding money owed to a healthcare practice for services already provided. It includes unpaid insurance balances and amounts patients are responsible for paying.
A busy practice does not always have a steady cash flow. Your providers may be seeing patients, your team may be submitting claims, and your schedule may be full, yet payments still arrive later than expected.
The challenge is understanding where the money is waiting and what needs to happen next.
Some balances are simply moving through normal processing. Others need corrected information, supporting documentation, an appeal, or a clearer payment conversation.
Effective healthcare receivables management helps your practice distinguish between these situations. It gives every outstanding account a status, an owner, and a next action.
What Is Accounts Receivable in Medical Billing?
Medical accounts receivable, commonly called A/R or AR, represents unpaid balances recorded in your practice’s billing system after charges have been entered.
These balances generally fall into two categories.
Insurance accounts receivable
Insurance A/R includes balances awaiting payment or resolution from primary, secondary, or other responsible payers. An account may be pending, rejected, denied, underpaid, or waiting for additional information.
Patient accounts receivable
Patient A/R includes verified amounts patients owe, such as deductibles, copayments, coinsurance, and self-pay charges.
Before sending a statement, your team should confirm that the amount has been assigned correctly and that applicable payer requirements have been followed.
One distinction matters: the amount billed is not always the amount your practice expects to collect. Contractual adjustments and other supported adjustments can affect the final balance.
For example, a $250 charge does not necessarily represent $250 in expected revenue if your payer contract allows a lower amount.
Why Does Accounts Receivable Matter to Healthcare Providers?
Outstanding balances affect more than a monthly report. Payment delays can make it harder to plan payroll, manage operating expenses, invest in staff, and understand whether practice growth is financially sustainable.
A useful billing accounts receivable review should answer five questions:
- Who currently owes the balance?
- Has the payer received and processed the claim?
- What is preventing payment?
- What action is available, and when is it due?
- Who is responsible for completing that action?
When these answers are missing, staff may revisit the same account repeatedly without moving it forward.
Clear A/R management gives providers visibility into both the money outstanding and the work required to resolve it.
Why Is Your Practice’s A/R Increasing?
An increasing balance does not always mean your billing process is failing. Higher patient volume creates more charges and can temporarily increase receivables.
The concern is whether collections are keeping pace and whether older accounts are accumulating.
What you notice | What your team should investigate |
|---|---|
A/R rises as patient visits increase | Whether collections and billing capacity are keeping pace |
Older balances cluster around one payer | Processing delays, enrollment issues, submission errors, or unresolved requests |
The same denial reason keeps appearing | Recurring eligibility, authorization, coding, or documentation problems |
Patient balances continue growing | Statement accuracy, delivery, payment options, and communication |
Payments have arrived but accounts remain open | Payment posting and reconciliation delays |
Follow-up notes repeat without progress | Missing ownership, unclear next steps, or ineffective escalation |
The goal is to identify the cause before adding more calls or resubmissions. A claim waiting for clinical records needs a documentation workflow. A claim rejected for an incorrect subscriber number needs accurate information.
How to Read an Accounts Receivable Aging Report
An accounts receivable aging report groups unpaid balances by age. It helps your team see where outstanding amounts are concentrated and which accounts need closer attention.
Common aging categories include:
Aging category | Practical review focus |
|---|---|
0–30 days | Confirm submission, acceptance, and normal processing |
31–60 days | Investigate claims beyond expected payer turnaround times |
61–90 days | Resolve missing information and review stalled follow-up |
91–120 days | Assess deadlines, escalation needs, and remaining resolution options |
Over 120 days | Review claim history, recoverability, and appropriate disposition |
These categories organize work; they do not establish payer filing or appeal deadlines.
Check how your software measures age
Some systems age accounts from the date of service. Others use charge entry, claim submission, or another event.
That difference can change how a report looks. Transferring a balance to patient responsibility may also affect its displayed age, even though the original encounter occurred months earlier.
Before comparing reports, confirm that they use the same aging method.
Look beyond the total balance
Break down A/R by payer, provider, location, responsible party, and claim status.
A practice-wide total may appear stable while one payer’s older balances continue increasing. Detailed reporting helps identify the problem before it becomes a larger backlog.
Days in AR Calculation for Healthcare Practices
Days in A/R estimates how much billed activity is represented by your outstanding receivables.
The days in AR calculation for healthcare practices is:
Days in A/R = Total accounts receivable ÷ Average daily charges
First, calculate average daily charges for a defined reporting period. Then divide the corresponding A/R balance by that daily amount.
Example calculation
Assume your practice has:
- Outstanding A/R: $180,000
- Charges during a 90-day period: $450,000
- Average daily charges: $450,000 ÷ 90 = $5,000
Your calculation is:
$180,000 ÷ $5,000 = 36 days in A/R
This is an illustrative example, not a performance guarantee or a universal target.
Use consistent definitions for charges, credits, receivables, and reporting periods. The American Academy of Family Physicians provides a charge-based calculation and explains why credits and other reporting factors need careful treatment. www.aafp.org
What does the result tell you?
Track days in A/R over time and investigate changes. Consider patient volume, payer mix, billing delays, and payment patterns when interpreting the result.
Also review older balances separately. A reasonable overall average can coexist with unresolved claims over 90 or 120 days.
Which Unpaid Claims Should Your Team Work First?
Working every account in age order can overlook urgent problems.
A recent denial approaching an appeal deadline may require attention before an older claim already awaiting a documented payer response.
Prioritize accounts using these factors:
- Deadline risk: Is a filing, correction, appeal, or records deadline approaching?
- Available action: Can your team resolve the issue now?
- Expected reimbursement: What amount is reasonably supported by the claim and contract?
- Current status: Is the claim rejected, pending, denied, underpaid, or paid?
- Previous activity: What has already been attempted, and what happened?
Separate routine pending claims from accounts that need correction, documentation, or escalation. Each work queue should have clear ownership.
A Practical Process for A/R Follow-Up
1. Confirm that the balance is accurate
Review the account before contacting the payer or patient.
Check for duplicate charges, unposted payments, unapplied credits, missing contractual adjustments, and incorrect transfers of responsibility.
An inaccurate balance can create unnecessary follow-up and confusing patient statements.
2. Verify payer receipt and claim status
A claim leaving your billing system does not establish that the payer accepted it for processing.
Review clearinghouse acknowledgments and available payer records. Determine whether the claim was rejected before adjudication, accepted and pending, or processed with a payment or denial.
Avoid resubmitting an unchanged claim without checking its status and the payer’s instructions.
3. Read the remittance details
When the payer has processed the claim, review the explanation of payment and adjustments.
CMS explains that Medicare remittance information uses adjustment group codes, Claim Adjustment Reason Codes, and Remittance Advice Remark Codes to explain adjustments and financial responsibility. These details help your team identify the appropriate next step. www.cms.gov
A denial alone does not establish that the patient owes the remaining balance. Confirm the explanation, contract terms, and applicable billing requirements before transferring responsibility.
4. Take the action that matches the problem
The appropriate response may involve:
- Correcting demographic or insurance information.
- Submitting a corrected claim.
- Providing requested clinical records.
- Resolving coordination of benefits.
- Reviewing an apparent underpayment.
- Filing an eligible appeal.
- Posting a supported adjustment.
For example, a claim awaiting treatment notes needs those records submitted through the required channel. Repeated status calls will not replace the missing documentation.
5. Document a specific next step
A note that says “followed up with insurance” leaves important questions unanswered.
Record the claim status, source of information, action taken, outstanding requirements, responsible person, and next review date. Include reference numbers when available.
The next review should reflect the payer’s stated timeframe or your practice’s escalation policy.
6. Confirm the final outcome
A promise to reprocess a claim is an intermediate step.
Continue tracking the account until payment, an appropriate adjustment, corrected responsibility, or another supported resolution appears in the billing system. Reconcile the outcome against what your team expected.
How to Reduce Accounts Receivable Over 90 Days
Start by dividing older balances into categories that require similar actions:
- No confirmed payer receipt.
- Denials with a correction or appeal available.
- Claims awaiting records or other information.
- Potential underpayments.
- Secondary insurance balances.
- Verified patient responsibility.
- Accounts needing an adjustment review.
Assign each category an owner and a resolution plan.
A claim over 90 days is not automatically uncollectible. Its status, filing history, documentation, and remaining deadlines determine what options are available.
However, an old balance should not remain open indefinitely without a documented reason. If no recovery option remains, review the appropriate disposition under your practice’s policies and applicable requirements.
For Medicare fee-for-service, CMS generally requires claims to be filed within one calendar year of the service date, with limited exceptions. This rule is separate from appeal deadlines and should not be applied to every payer. www.cms.gov
While clearing the backlog, protect time for newer claims. Otherwise, the same problems can continue feeding older aging categories.
How Should Practices Manage Patient Balances?
Patient A/R needs accurate information and clear communication.
Before sending a statement, confirm that payments and adjustments have been posted, insurance processing has been reviewed where applicable, and the patient responsibility is supported.
A useful statement should make the service date, remaining amount, payment options, and billing contact easy to find.
If a patient questions the charge, staff should be able to explain how the balance was calculated. Where available and appropriate, communicate payment plans or financial assistance policies clearly.
Avoid treating an unresolved payer issue as a patient collection problem.
Which Metrics Show Whether A/R Management Is Improving?
A falling A/R balance can look encouraging, but it does not explain how the reduction happened.
Review these measures together:
Metric | What it helps you understand |
|---|---|
Days in A/R | Changes in outstanding receivables relative to charge activity |
A/R over 90 days | The size and direction of the older backlog |
Cash collected from worked accounts | Whether follow-up is producing payments |
Adjustments and write-offs | How much balance reduction came from nonpayment resolutions |
Repeated follow-up touches | Whether accounts are receiving activity without progress |
Unresolved accounts by payer or cause | Where escalation or process changes are needed |
Track both dollars and percentages. The percentage of A/R over 90 days can fall because recent charges increased, even when the older dollar balance has not improved.
For practices that need clearer financial visibility, medical billing analytics and reporting can support the review of aging accounts, payment activity, and billing performance. codecureai.com
How Can Providers Prevent Recurring A/R Problems?
Strong healthcare receivables management connects follow-up findings with earlier steps in the revenue cycle.
Repeated eligibility issues should prompt a registration and verification review. Recurring records requests may reveal a documentation handoff problem. Delays involving a newly added provider may require an enrollment review.
For each recurring issue, identify:
- The underlying cause.
- The affected payers or services.
- The workflow change needed.
- The person responsible.
- The measure that will show whether the change worked.
This turns A/R reporting into a practical improvement process. Your team can spend less time resolving the same preventable issue repeatedly.
When Should a Practice Consider Outsourcing A/R Management?
Outside support may help when older balances keep increasing, staff cannot keep up with follow-up, or reports do not explain why claims remain unpaid.
When comparing accounts receivable medical billing services, ask how the company will:
- Assess your existing balances.
- Protect filing and appeal deadlines.
- Obtain missing documentation from your team.
- Document claim activity and escalation.
- Control account adjustments.
- Separate collections from write-offs in reporting.
- Explain unresolved accounts.
Recovery expectations should reflect your actual claim inventory. Age, payer mix, documentation quality, and remaining deadlines all influence the available options.
Choose a partner that can explain its process and show how account outcomes will be measured.
How CodeCure AI Supports Accounts Receivable Management
CodeCure AI’s accounts receivable management services include reviewing outstanding balances, prioritizing claims, investigating payment delays, documenting follow-up, and moving accounts toward an appropriate resolution. Its process also includes reviewing possible reimbursement discrepancies and recurring workflow issues. codecureai.com
If your practice cannot explain why older balances remain unpaid, request a free revenue audit to discuss the accounts and workflows that need closer attention. codecureai.com
Frequently Asked Questions
What is the difference between A/R management and denial management?
A/R management covers outstanding insurance and patient balances. Denial management focuses on claims a payer has denied. Denied claims can be part of A/R, alongside pending claims, underpayments, secondary balances, and unpaid patient responsibility.
How often should a practice review its A/R aging report?
A practical starting point is a weekly review of priority accounts and a monthly management review of trends. Adjust the frequency to claim volume, staffing, payer response times, and approaching deadlines.
Why is accounts receivable increasing when patient visits are increasing?
More visits create more charges and can increase receivables. Compare that growth with collections, aging categories, and payment delays to determine whether billing performance is keeping pace.
Can claims over 120 days still be paid?
Some can. Review claim status, filing history, documentation, payer requirements, and remaining correction or appeal options before deciding whether a balance is recoverable.
Should a denied insurance claim be billed to the patient?
Not automatically. Review the payer’s explanation, contract terms, and applicable requirements to establish whether the patient is responsible.
Does outsourcing guarantee recovery of all unpaid claims?
No. Recovery depends on claim validity, coverage, documentation, payer requirements, and remaining resolution options. A billing partner should explain those limits and document the outcome of each account.