Hospital Revenue Cycle Services That Close the Gap
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Medical Billing for Hospitals
Hospital revenue cycle is a different discipline from professional billing: UB-04 facility claims, revenue codes, DRG integrity, observation-versus-inpatient status, and discharged-not-final-billed (DNFB) backlogs that silently hold millions in unbilled care. We support facility billing operations alongside the professional side.
Facility (UB-04) and professional (CMS-1500) claim streams reconciled so both sides of every encounter are billed
DNFB reduction: clearing documentation and coding bottlenecks that keep discharged accounts from billing
Patient status integrity (observation vs inpatient, two-midnight rule) to prevent Medicare status denials
Charge capture audits across departments (OR, imaging, pharmacy) so performed services aren't lost before they reach the bill
Payer contract and DRG validation so facility claims reimburse at the negotiated or CMS-calculated rate, not a default
Key CPT Codes in Hospitals Billing
The codes that drive most of the revenue in this specialty, and what has to be right on each one.
| Code | Service | Billing Note |
|---|---|---|
| Rev Code 0450 / 0456 | Emergency room, general / urgent care | Drives ED facility-fee tiering; must align with the documented level of resources used, not just the professional E/M level billed separately. |
| Rev Code 0360 / 0361 | OR services, general / plastic | Anchors surgical facility claims; missing OR minutes or supply charges here is a common source of underbilled cases. |
| MS-DRG assignment (e.g. 470/469 joint replacement) | Diagnosis-Related Group | Principal diagnosis, secondary diagnoses (CCs/MCCs), and procedures documented drive the DRG weight; incomplete coding understates the payment. |
| Condition Code 44 | Inpatient-to-outpatient status change | Used when a case is reviewed and reclassified from inpatient to outpatient before discharge; missing or late application creates a compliance and billing problem. |
| Occurrence Span Code 70-74 | Qualifying stay / related dates | Required on certain claims (e.g. SNF qualifying hospital stay); errors here are a routine cause of downstream denials for the receiving facility too. |
| G0378 / G0379 | Hospital observation services, per hour / direct admission | Observation billing hinges on correctly counted hours and physician order timing; this is the facility-side twin of the inpatient-vs-observation status question. |
| Rev Code 0250-0259 | Pharmacy charges | High-volume, high-dollar line items; charge-capture gaps here are disproportionately expensive compared to their documentation effort. |
| Present on Admission (POA) indicators | Diagnosis POA flagging | Affects DRG weight and hospital-acquired-condition payment adjustments; missing or incorrect POA flags can both underpay and create compliance exposure. |
Top Hospitals Denials We Prevent
Inpatient status not supported under the two-midnight expectation
How we prevent it: Utilization review is integrated with billing so status decisions (inpatient vs. observation) are made and documented at admission, not reconstructed after a payer audit.
DNFB accounts stall on incomplete documentation or coding queries
How we prevent it: Discharged accounts are worked against a daily DNFB aging report, with coding queries routed and closed before they become a stale, unbillable backlog.
DRG assigned without complete secondary diagnosis (CC/MCC) capture
How we prevent it: Coding review checks that documented comorbidities and complications are fully captured before the claim drops, so the DRG reflects the actual complexity of the stay.
Facility and professional claims for the same encounter conflict or duplicate
How we prevent it: UB-04 and CMS-1500 claims for the same encounter are reconciled before submission, so neither side under-bills or trips a payer's duplicate-claim edit.
Charges missing from ancillary departments (OR, imaging, pharmacy)
How we prevent it: Periodic charge-capture audits compare department logs (OR minutes, drugs administered, studies performed) against what actually hit the bill, recovering revenue before it becomes unrecoverable aged AR.
Hospitals Billing FAQs
Discharged-not-final-billed is care delivered but not yet billed, usually stuck on incomplete documentation or coding queries. Every DNFB day is an interest-free loan to payers. High-performing hospitals hold DNFB under five days of revenue; reducing it is the fastest cash acceleration available.
Medicare pays inpatient stays under DRGs only when the two-midnight expectation and medical necessity support inpatient status; otherwise care should be observation (outpatient). Status errors in either direction cost money: inpatient denials on one side, forgone DRG payment on the other. Utilization review integrated with billing prevents both.
Facility claims bill on UB-04 with revenue codes, DRGs or APCs, and institutional payer edits, a separate rulebook from professional CPT billing. Hospitals also run both streams simultaneously for employed physicians. We staff both skill sets so neither side's revenue waits on the other.
High-performing hospitals hold DNFB under about five days of average daily revenue; many facilities run well above that, especially in departments with heavy coding-query volume. The fastest way down is a daily aging report tied to specific bottlenecks (missing op notes, pending queries, credentialing holds) rather than a general push to bill faster.
Hospital RCM engagements are usually priced differently than physician billing, either as a percentage of net collections, a per-claim or per-encounter fee, or a hybrid tied to specific DNFB and denial-rate targets. The right structure depends on your current backlog and whether the engagement is ongoing support or a defined cleanup project.
Yes. Hospitals running employed physician groups need both skill sets, since UB-04 facility rules and CMS-1500 professional rules are genuinely different disciplines with different edits, different payer contacts, and often different staff. We run both streams so neither one's revenue waits on the other, and so the same encounter is billed correctly on both sides.
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