Missed Charges: Finding the Services You Performed but Never Billed

The gap between the chart and the claim

Every patient encounter essentially creates two versions of what happened.

The medical record tells the clinical story: what the provider evaluated, what was performed, what was administered, and what was documented. The claim tells the financial story: what the practice is asking the payer to reimburse.

Ideally, those two stories match. In reality, they often do not.

A service may be clearly documented in the medical record but never make it through the charge-entry process. And because most revenue cycle workflows are designed to manage claims that already exist, there may be nothing that alerts the practice that something is missing.

Four common ways charges get missed

1. Procedures performed during a routine visit

Consider a patient who comes in for a medication follow-up and mentions significant shoulder pain. During the visit, the provider determines that a joint injection is appropriate and performs the procedure.

The injection is documented in the note, but the appointment was originally scheduled as an office visit. The E/M charge makes it to billing, while the procedure never enters the charge workflow.

Everyone did their job from a clinical standpoint. The patient received the service. The documentation exists. But the practice never billed for the procedure.

One missed procedure may not seem significant. Repeat that workflow several times a week across multiple providers, however, and the financial impact can become substantial.

2. Ancillary services

In-office laboratory testing, point-of-care testing, diagnostic imaging, and other ancillary services are another common source of missed revenue.

These services may be ordered in the EHR, performed by clinical staff, and documented in a separate results system. The clinical result makes its way back into the patient's chart — but the billing workflow may never receive the corresponding charge.

The service happened. The documentation happened. The billing did not.

3. Supplies and materials

Casting materials, splints, surgical trays, wound care supplies, and durable medical equipment can easily become invisible expenses.

Practices sometimes begin treating these items as routine overhead simply because they are used every day. But depending on the service, payer contract, coding requirements, and coverage rules, some supplies may be separately reimbursable when properly documented and billed.

When supplies leave the cabinet faster than corresponding charges appear on claims, it is worth investigating.

4. Administration and add-on codes

Sometimes the primary service makes it onto the claim, but something associated with it does not. The medication may be billed, but the administration is missing. The primary procedure may be reported, but an appropriate add-on service is overlooked. Multiple units may be documented, but only one unit reaches the claim.

These are often some of the easiest charge-capture problems to identify, because they can frequently be addressed through billing edits, claim-scrubbing rules, or workflow alerts rather than relying on someone's memory.

Why missed charges can go undetected for so long

The biggest problem with missed charges is not necessarily that someone made a mistake. It is that everyone can appear to be doing their job correctly while revenue is still being lost.

The provider documented the service and considers the encounter complete. The coder codes the services or charges presented to them — if something never enters the charge workflow, the coder may never know it occurred. The biller submits claims and works rejections and denials, but if a claim was never generated, there is nothing sitting in a work queue. The practice manager reviews A/R days, denial rates, and collection percentages, and those numbers may look perfectly healthy because they measure claims that actually exist.

That is how a practice can have good-looking revenue cycle metrics and still be leaving money behind. Traditional billing metrics tell you how well you are collecting what you billed. They do not necessarily tell you whether you billed everything you performed.

How to measure missed charges yourself

You do not need to audit every chart in the practice to determine whether you have a charge-capture problem. Start small and choose one high-volume or high-value service.

1. Pick one service.Choose something your practice performs regularly — joint injections, in-office testing, casting, splinting, imaging, wound care, or another common procedure.
2. Build the clinical list. Using a clinical source, identify every encounter in the last 90 days in which that service was performed: procedure logs, medication administration records, imaging records, laboratory or point-of-care testing logs, supply or inventory records, or clinical documentation.
3. Build the billing list. Identify every encounter in that same period where the corresponding CPT or HCPCS code was billed.
4. Compare the two. Where the clinical record shows a service occurred but no corresponding charge was billed, you have identified a potential missed charge.
5. Calculate the financial impact.Multiply the validated count by the practice's average allowed amount, then annualize the result.

Each discrepancy should still be reviewed for documentation, coding, payer, bundling, and billing requirements before assuming it is separately billable. A small 90-day discrepancy can look very different when you calculate what the same workflow may be costing the practice over an entire year — and across multiple providers.

Try the supply cupboard test

For services involving physical supplies, there is an even simpler way to perform an initial check. Look at what came out of the supply cabinet and compare it with what went onto claims.

That does not automatically mean 20 claims are missing. There may be legitimate explanations. But it gives you a very good place to start asking questions. Sometimes an inventory report can uncover a charge-capture problem faster than reviewing hundreds of individual charts.

Do not just fix the charges — fix the workflow

Recovering missed revenue is valuable. Preventing the next missed charge is even more valuable. Once you identify a pattern, determine where the handoff is breaking down.

• If clinical staff perform a service in one system and billing works from another, you may need a reconciliation process between the two.
• If procedures are documented in the visit note but never entered as charges, the solution may involve an EHR template, required field, encounter type, charge-entry prompt, or provider education.
• If administration codes, units, or add-on codes are repeatedly overlooked, consider whether automated claim edits or charge-scrubbing rules can catch the issue before submission.

The goal should not be to create another manual task for someone to remember. The goal should be to build a workflow that makes the correct charge the natural result of the clinical process.

What about charges that were already missed?

Once missed charges are identified, resist the temptation to simply send everything to billing. Before launching a recovery project, determine:

• Whether the documentation supports the service
• Whether the service is separately billable
• Whether coding and bundling rules permit reporting it
• Whether prior authorization or other payer requirements apply
• Whether the payer's timely filing deadline has passed
• Whether an original, corrected, or replacement claim is appropriate

Payer requirements vary, and older encounters can require additional review. Finding the revenue opportunity is only the first step. Recovering it correctly matters just as much.

One missed charge can point to another

Charge-capture issues have a tendency to travel together. An encounter where a procedure was performed but never billed may warrant a broader review of the documentation and coding for that visit.

Was there a significant, separately identifiable E/M service in addition to the procedure — and if so, was it appropriately reported with modifier 25 when supported? Was the E/M level itself accurately selected based on the work documented? Were medications, supplies, administration services, units, or other separately reportable services captured?

One missed procedure may be an isolated mistake. A repeated pattern usually points to a workflow problem.

Is there a “normal” missed-charge rate?

There is no single benchmark that makes sense for every specialty, practice type, or workflow. A better benchmark is your own performance.

Measure a service line. Identify the gaps. Correct the workflow. Then measure it again. If the discrepancy decreases, you know the process is improving.

The bottom line

Most practices spend significant time monitoring denials because denials are easy to see. Missed charges deserve attention for exactly the opposite reason: they are easy not to see.

A strong revenue cycle should answer two separate questions.

Are we getting paid correctly for the claims we submit? And just as importantly: are we submitting claims for everything we actually performed?

The first question is about collections. The second is about charge capture. And sometimes, the biggest revenue opportunity in a practice is not sitting in the A/R report at all. It is sitting in the medical record, waiting to be found.