DNFB, short for discharged not final billed, describes a hospital account where the patient has left but the final bill hasn’t gone out yet.1Nym Health. Discharged Not Final Billed Meaning & Causes – Nym Hospitals watch it closely as a sign of how smoothly their billing works, because the backlog is often caused by gaps in the medical record rather than slow billing staff.2XY.AI Labs. Discharged Not Final Billed (DNFB) Definition
Where DNFB Sits in the Billing Process
After discharge, the doctor’s notes must be complete enough for coders to turn the stay into billing codes. The account also needs every charge from departments like pharmacy or lab posted and checked.3MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed? Only then is the claim sent to the payer, the insurer or program that pays.4Nym Health. Discharged Not Final Billed Meaning & Causes – Nym DNFB covers that whole gap between the patient leaving and the claim going out.5PricewaterhouseCoopers. Revenue Cycle Management and Revenue Calculations
That makes DNFB broader than a coding backlog. A coding backlog counts only records still waiting to be coded.6MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed? | MediCodio AI DNFB counts every discharged account not yet billed, including ones already coded.7MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed? | MediCodio AI A coded record can still wait on late charges, corrected patient details, or a billing hold.8MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed?
It also differs from unpaid claims. DNFB accounts have never been billed at all. Once a claim is sent, the account moves into money owed by the payer, and delays after that are tracked separately, often coming from insurer review.
Several teams touch the account in turn: the doctor who finishes the notes, the coder, and the billing staff who check the claim. A hold at any one of them stops everything after it. Many hospitals also run a final check before sending the claim, and an account that fails it goes back for correction and stays in DNFB until it is fixed.
Why Accounts Get Stuck in DNFB
Documentation is the biggest bottleneck. When a doctor’s notes are thin or unclear, coders can’t finish and must send a physician query, a formal question to the doctor.9Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash Charts then sit waiting on answers, so DNFB rises for reasons unrelated to coder speed.10Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash In one hospital, the doctors’ part of the process was the largest share of stuck accounts.11Health Catalyst. How One Hospital Took the Pain Out of Getting Paid
A query can be simple. A coder sees “pneumonia” without the type and asks the doctor to specify, because the type changes the code. The account waits until the doctor answers, and busy doctors may take days to respond.
Coders can’t just move on, because codes must match what the doctor actually documented. They aren’t allowed to guess or fill in a missing detail from experience. A vague or missing diagnosis can change the code, and the code affects how the stay is classified and what the insurer pays.
Problems after coding also keep accounts in place. Late charges from clinical departments can hold a finished record.12MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed? Medications, lab tests, and imaging are recorded by the departments that provide them, not by the billing office, so charges can post days after the patient has left. Billing staff often hold the account briefly to let them arrive, since a bill sent too early may leave out money the hospital is owed. When a department is slow to post, the account waits even though the coder is done.
Wrong patient or insurance details must be corrected before billing.13MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed? Complex cases may need extra coding review.14MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed? So adding more coders alone doesn’t fix DNFB.15MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed?
Big system changes can push it up too. When hospitals switched to the ICD-10 coding system in 2015, coder output dropped about half at first and took around a year to recover.16Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash Inpatient DNFB days rose about 10% in the following three months compared with a year earlier.17Crowe. Data shows ICD-10 conversion created minimal financial disruption at hospitals
How DNFB Is Measured and What a Good Number Looks Like
The standard measure, defined by the Healthcare Financial Management Association (HFMA), divides total dollars in DNFB accounts by the hospital’s average daily patient revenue.18Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Trains Hospital Cash The result is DNFB days, how many days’ worth of revenue is stuck waiting to be billed.19MediCodio AI. Why Does DNFB Keep Increasing Even When Coding Teams Are Fully Staffed? | MediCodio AI Because it’s expressed in days, hospitals of different sizes can compare themselves.
The numerator is the gross charges, or total billed amount, on accounts that have been discharged but not billed. It grows with the number of stuck accounts and with how expensive they are. A handful of costly surgical stays can outweigh many cheap outpatient visits, so the dollar total can rise even if the number of accounts hasn’t.
Say a hospital earns $1 million a day on average and $5 million sits unbilled. That equals 5 DNFB days. Dropping to $3 million would mean 3 days.
Many billing teams aim for 3 to 5 DNFB days.20Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash That’s a rule of thumb, not an official benchmark. HFMA defines the formula but sets no required target.21Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash A team just above 5 days isn’t failing, and one just below isn’t safe, since the right level depends on the hospital’s mix of cases and its own history.
A single day’s figure can swing, so trends over weeks are what reveal real problems. A sudden jump often points to a specific cause, like a system change or a staffing gap.
Why DNFB Matters for Hospital Finances
DNFB accounts are cash the hospital has earned but can’t collect yet.22Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash They also count toward days in A/R (accounts receivable), how long the hospital waits on average to be paid.23HFMA. Ask the Experts: Net Days in A/R The clock on payment doesn’t start until the claim is sent, which means every DNFB day is added to the front of the wait. A hospital with fast-paying insurers can still wait a long time if its own bills go out late.
Hospitals pay staff and suppliers on a fixed schedule, so delayed cash means borrowing or tight budgets. DNFB tends to show a cash problem before it appears elsewhere.
Late bills bring extra risks. Very late claims can miss insurers’ filing deadlines or rely on expired approvals.24Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash Insurers set time limits for receiving claims, and the limits vary by payer and contract. A claim on a long-delayed account may arrive after the window closes, and the insurer can then refuse to pay it, leaving the hospital without payment for care already given.
Many planned or inpatient stays need prior authorization, an approval from the insurer before or during care. If billing is delayed long enough, the approval may be questioned or may no longer match the claim, and the hospital has to spend time sorting it out. The delays stack with payer slowness: in 2023, 31% of inpatient claims to private insurers went unpaid over three months, versus 12% for Medicare.25Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash26Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash | Medovent Solutions
The fix isn’t simply to send bills faster. Billing before the record is complete risks wrong codes or missing charges, which can lead to denials or underpayment.
How DNFB Affects Patients
Bills that arrive long after treatment can upset patients’ financial planning.27NCDS. Improving Patient Satisfaction through Efficient Billing Processes Weeks or months after discharge, details of the stay are harder to remember, which makes it tougher to check whether charges look right.
A patient might notice no explanation of benefits from the insurer weeks after discharge, then a bill or statement months later. The delay usually reflects hospital billing steps, not a mistake. The patient is generally billed only after the insurer has processed the claim, and the claim can’t be sent until the hospital finishes its own work.
The explanation of benefits is the insurer’s statement of what it covered and what the patient may owe, and it is not a bill. Comparing it with the hospital’s statement can help a patient spot charges that don’t match.
If the wait feels long, a patient can call the hospital billing office to ask whether the claim was sent, and confirm that insurance details were recorded correctly. Keeping discharge papers makes it easier to match them against the bill when it comes.
How Hospitals Bring DNFB Down
Most progress starts with the record itself. Strengthening doctors’ documentation reduces queries and speeds final coding.28Medovent Solutions. Discharged Not Final Billed: How the DNFB Clock Quietly Drains Hospital Cash Reducing the doctor backlog in one hospital cut its wait for payment by 8.2 days, almost 19%.29Health Catalyst. How One Hospital Took the Pain Out of Getting Paid
In practice, doctors can state a diagnosis fully, such as the type of an illness and its cause, when they write the note, so the coder doesn’t have to ask. Short education sessions based on the questions coders ask most often help address repeated gaps. Notes finished closer to discharge also mean fewer queries reaching a doctor who has already moved on to other patients.
Answers can come faster too. Queries can be sent through the electronic record, so the doctor sees them while already working in the chart. Hospitals can agree on a response time and track overdue queries so slow answers get noticed. Short, clear questions with a few answer choices take less time than open-ended ones.
Tools help as well. Computer-assisted coding software, which suggests codes from the notes, has helped hospitals cut backlogs and missed charges.30Journal of AHIMA. Truth about Computer-Assisted Coding: A Consultant, HIM Professional, and Vendor Weigh in on the Real CAC Impact A human coder reviews and accepts or changes each suggestion. This can speed up straightforward records and leave coders more time for complex cases. It can also flag missing details early, before the account stalls. Software can’t answer a question only the doctor can, so tools work best alongside clear processes.
One medical center used analytics to see where accounts were stuck and guide coders and doctors.31Health Catalyst. The Healthcare Revenue Cycle: How to Optimize Performance Within two years it cut DNFB dollars by two-thirds and gained $1 million a year in payments.32Health Catalyst. The Healthcare Revenue Cycle: How to Optimize Performance
Daily routines keep the number low. Teams review the list of stuck accounts every day, sort holds by cause (notes, charges, or details), assign each to the right team, and set deadlines for doctors to answer queries.