A backlog usually shows up when someone opens the AR aging report and finds a large balance sitting past 90 days. By that point, some of those claims may already be close to the payer’s filing or appeal deadline. This post covers what causes a billing backlog, how to recognize one, and a five-step process to clear it.
What Is Medical Billing Backlog Management?
Medical billing backlog management is the process of identifying claims that are unbilled, rejected, denied, or unpaid past their normal follow-up window, ranking them by deadline and value, and working them until the queue is back to normal. It also includes fixing whatever caused the pile in the first place.
A backlog is rarely one pile. Unentered charges, rejected claims, unappealed denials, and old AR each need different handling, so the sorting comes before the work.
What Causes a Billing Backlog?
Staffing is the most common reason. A biller goes on leave or quits, the opening takes two months to fill, and claims stack up in the meantime. Other causes tend to be more specific:
- Visit notes, authorizations, or referrals that are missing when the claim is ready
- Charges waiting on a provider’s answer to a coding question
- Outdated insurance details that cause rejections
- Payer edits that change without the billing team noticing
- Denials that arrive but have no assigned owner
- A new provider or location adding volume before billing capacity catches up
Signs Your Practice Has a Backlog
Check your AR aging report first. If the over-90-day column grows for two or three months in a row, something is stalled. Other signs are charges entered a week or more after the visit, rejected claims sitting without a next step, and staff working only the newest claims because the older ones feel too tangled to start. Cash flow that drops while visit volume stays flat points the same way.
The 5-Step Cleanup Plan
Step 1: Measure and Sort What You Have
Pull three reports: AR aging, unbilled charges, and denials. Group the accounts by type (unbilled, rejected, denied, unpaid), then by payer, age, and balance.
Look for concentration. If 40 percent of your denials come from one payer, or one denial code keeps repeating, you have found the first place to work. Fixing a single root cause can clear a lot of accounts at once.
Step 2: Prioritize by Deadline, Then by Dollar Amount
Timely filing limits differ by payer. Medicare allows one year from the date of service, while some commercial plans allow 90 days or less. Appeal windows vary too. Look up the actual limits in each payer’s contract or provider manual rather than relying on memory.
Then work in this order:
- Claims approaching a filing deadline
- Denials with an open appeal window
- High-balance accounts
- Older accounts that have had recent payer activity
- Small balances
Decide ahead of time what balance is too small to justify a full follow-up. Otherwise staff spend an hour chasing a $12 balance.
Step 3: Find the Cause Before You Resubmit
A claim sent back with the same error will come back denied again, and it loses time you may not have. Before resubmitting, confirm eligibility, attach the missing authorization, and get the coding question answered.
A review step before submission also helps with new claims. Our guide to claim scrubbing techniques explains how to catch problems in patient data, codes, and modifiers before the claim reaches the payer.
Step 4: Assign Owners and Daily Targets
Give each person a defined set of work, split by payer or by account type. Set a daily number of accounts to touch, and record every action with the date, the payer contact, and the next follow-up date. Without notes, the next person starts from zero.
Keep current claims moving at the same time. If everyone works the old pile and new charges wait, the backlog just changes shape. Some practices bring in temporary help for the cleanup period for this reason.
Step 5: Review Weekly and Set Rules to Prevent a Repeat
Once a week, look at total backlog dollars, number of accounts, days in AR, denial rate, and how quickly charges are being entered. A ten-minute review is enough if the same numbers appear each time.
Then set a few standing rules. Examples: charges entered within two business days of the visit, every denial reviewed within five business days of receipt, and an AR report reviewed weekly. Choose targets your team can actually meet, and adjust after a month or two.
When to Bring in Outside Help
A small backlog can often be handled in-house. A large one, especially with old AR, is harder to clear while the team keeps up with daily billing. Rapid RCM Solutions helps practices with AR and denial management, including old AR cleanup, so your own staff can stay on current claims. If you are not sure how big your backlog is, a billing specialist can review your aging report and point out where the larger gaps are.
Conclusion
Start by sorting the backlog and working it by deadline. Fix the cause of each stalled claim before resubmitting, track a few numbers weekly, and set clear rules for charge entry and denial follow-up. Those steps are enough to stop the pile from growing back.
Frequently Asked Questions
What is a medical billing backlog?
It is a build-up of claims that have not been billed, paid, or followed up within normal timeframes. That includes unbilled charges, rejected claims, unworked denials, and aging receivables.
How long does it take to clear a billing backlog?
It depends on how many accounts are involved, the payer mix, and how many people are assigned. A small backlog may take a few weeks. One with a lot of old AR can take several months.
Should we write off old claims?
Only after checking the payer’s timely filing and appeal deadlines. If the deadline has passed and there are no grounds to appeal, follow your practice’s write-off policy and document the reason on the account.
How do we prevent a backlog from coming back?
Enter charges promptly, verify eligibility before visits, review claims before submission, give every denial an owner, and review the aging report every week.
