Profitable but Short of Cash: The Revenue Cycle and What Nursing Documentation Has to Do With It
Student Name
Master of Science in Nursing Program, Aspen University
N542: Health Care Finance and Economics
Instructor Name
Month Day, Year
Profitable but Short of Cash: The Revenue Cycle and What Nursing Documentation Has to Do With It
In the spring, the composite 260-bed hospital where I work reported a small operating profit for the quarter. In the same month, the chief financial officer froze all nonurgent purchases, including the new bladder scanners my unit had been promised, because the hospital was short of cash. To most nurses those two facts sound contradictory. They are not. A hospital earns revenue when it delivers care but receives cash only when payers pay, and the steps between the two, known as the revenue cycle, can take weeks or months.
This paper explains the difference between profit and cash flow, walks through the revenue cycle, examines why claims are denied or delayed, and identifies the specific points at which nursing documentation and workflow affect whether and when the hospital is paid. It closes with actions a nurse manager can take on the unit.
Profit Is Not Cash
Hospitals keep their books on an accrual basis. Revenue is recorded when a service is provided and expenses when they are incurred, regardless of when money changes hands. Finkler et al. (2013) explain that this gives an accurate picture of whether operations are profitable but can hide cash problems, because payroll must be met every two weeks while payments for the care that payroll supported may not arrive for 45 days or more. A hospital can therefore be profitable and still unable to pay its bills on time.
Two measures capture the gap. Days in accounts receivable is the average number of days between providing care and collecting payment. Days cash on hand is the number of days the hospital could cover its operating expenses from the cash it holds. When the first rises, the second falls. At our hospital, net patient revenue is about $310 million a year, or roughly $849,000 a day. Days in accounts receivable had drifted from a target of 45 to 52. Those seven extra days represented about $5.9 million of earned revenue that had not yet become cash, which is more than enough to explain the frozen purchases.
The Revenue Cycle
The revenue cycle begins before the patient arrives and ends when the account balance is zero. Its front end includes scheduling, verification of insurance eligibility, prior authorization for planned services and registration. Its middle covers the care itself, the documentation of that care, the assignment of the patient's status as inpatient or observation, charge capture and coding. Its back end includes submitting claims, posting payments, following up on denials and collecting patient balances. A delay or error at any step slows the whole cycle, and many errors that appear at the back end, as denials, actually begin at the front or in the middle.
Denials are the costliest of these problems. Each denied claim must be reviewed, corrected or appealed, and some are never paid. The burden does not fall only on the hospital. Using national remittance data, Horný et al. (2025) found that patients with low household incomes and patients from historically disadvantaged racial and ethnic groups bore the largest burdens from claim denials, and that patients with household incomes under $50,000 were the least likely to have denied claims contested. A denial that the hospital fails to overturn can become a bill the patient cannot pay.
Where the Hospital's Denials Came From
Our hospital's initial denial rate was about 11% of claims by dollar value last year. The revenue cycle department grouped denials by reason, which showed where the fixes lie.
| Denial reason | Share of denied dollars | Where it starts |
|---|---|---|
| Medical necessity and inpatient status | 34% | Admission decision and clinical documentation |
| Eligibility and registration errors | 17% | Front-end registration |
| Prior authorization missing | 22% | Scheduling and referral |
| Missing or incomplete documentation | 15% | Clinical documentation |
| Coding errors | 12% | Coding and documentation specificity |
Half of the denied dollars, the medical necessity and documentation categories combined, trace back to the clinical record. The single largest category concerns patient status. Under Medicare's two-midnight rule, adopted in 2013, inpatient payment generally fits stays the admitting physician expects to cross two or more midnights; shorter stays are usually classified as observation, which is paid as outpatient care at a lower rate. Poon et al. (2021) found that the rule sped up an existing shift from short inpatient stays to observation stays and that the administrative burden of making status decisions remained substantial. Earlier work at one academic center showed why these decisions are difficult: short inpatient and observation stays involved different patient populations, and even the time of day a patient arrived affected whether a stay crossed two midnights (Sheehy et al., 2014). When the record does not support the expected length and intensity of care, the payer can deny the inpatient claim.
Nursing's Place in the Revenue Cycle
Nurses do not submit claims, but they create much of the evidence on which claims are paid. Three points matter most. The first is the admission. When a patient arrives from the emergency department, the nursing assessment, the frequency of interventions and the documentation of the patient's response help show why hospital-level care is needed. Vague entries such as "resting comfortably" on a patient receiving intravenous antibiotics every six hours weaken the case; specific entries about vital sign trends, oxygen needs and the treatments given strengthen it.
The second is timing and completeness. Infusion start and stop times, blood product administration and procedures performed at the bedside generate charges only when they are documented. Missing times can mean a charge is never captured or a claim is returned for information. The third is the discharge. When a patient's condition changes, or a planned discharge is delayed for a clinical reason, the reason must be in the record, because payers review the length of stay against it. Case managers and utilization review nurses rely on bedside documentation to defend status decisions, and they cannot defend what was not written.
Actions for the Nurse Manager
A nurse manager can help the hospital's cash position without learning to code claims. Partnering with case management to review every short-stay admission on the unit each morning catches status questions while the patient is still in the bed. Brief education for staff on documenting medical necessity, with before and after examples from real, de-identified charts, improves the record where denials start. Tracking two unit-level measures, the number of claims returned for missing nursing documentation and the percentage of infusions with complete start and stop times, gives the unit feedback it can act on. A realistic six-month target is to halve documentation-related returns from the unit.
Conclusion
Profit and cash are different, and the difference is the revenue cycle. A hospital that provides good care and records a profit can still run short of cash when payments are slow or denied, and much of that delay starts in the clinical record. For the nurse manager, understanding cash flow explains frozen budgets and shows where the unit can help: clear documentation of why patients need hospital care, complete records of what was done and when, and early partnership with case management. These actions protect the hospital's finances, and by reducing denials they also protect patients from bills that should never have reached them.
References
Finkler, S. A., Jones, C. B., & Kovner, C. T. (2013). Financial management for nurse managers and executives (4th ed.). Elsevier Saunders.
Horný, M., Yu, O., & Hoagland, A. (2025). Claim denials: Low-income patients from disadvantaged racial and ethnic groups experienced the largest burdens. Health Affairs, 44(6), 707-715. https://doi.org/10.1377/hlthaff.2024.01277
Poon, S. J., Wallis, C. J. D., Lai, P., Podczerwinski, L., & Buntin, M. B. (2021). Medicare two-midnight rule accelerated shift to observation stays. Health Affairs, 40(11), 1688-1696. https://doi.org/10.1377/hlthaff.2021.00094
Sheehy, A. M., Caponi, B., Gangireddy, S., Hamedani, A. G., Pothof, J. J., Siegal, E., & Graf, B. K. (2014). Observation and inpatient status: Clinical impact of the 2-midnight rule. Journal of Hospital Medicine, 9(4), 203-209. https://doi.org/10.1002/jhm.2163
How this N 542 Module 4 example is structured
Aspen does not publish N542 module prompts, so check your classroom for the exact instructions. This example opens with a paradox, explains accrual accounting, days in accounts receivable and days cash on hand, walks the revenue cycle, analyzes denials by cause in a table, explains the inpatient status rules behind the largest category, identifies nursing's three touchpoints and ends with unit-level actions and measures.
N542 Module 4 questions, answered
What does N542 Module 4 usually ask for?
Cash flow is one of the topics Aspen's N542 description names, so a paper explaining cash flow, the revenue cycle and the nurse manager's role in it is a typical module shape. Check your classroom for the exact prompt and any required calculations.
How is days in accounts receivable calculated?
Divide the amount of patient accounts receivable by average daily net patient revenue, which is annual net patient revenue divided by 365. Fewer days means payments arrive sooner.
What is the two-midnight rule?
It is a Medicare policy, adopted in 2013, under which inpatient admission is generally appropriate when a physician expects the patient to need hospital care spanning at least two midnights. Shorter expected stays are usually treated as outpatient observation.
Write yours, or have the desk draft it
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