Hospital Billing

Hospital Billing Services That Protect Every High-Value Inpatient Claim

Hospital billing operates under a fundamentally different reimbursement structure than office-based care. Inpatient claims are paid under DRG-based bundled payments where the diagnosis documentation drives the entire payment amount. Observation versus inpatient admission status determines not just how a claim is paid. It determines whether Medicare patients face skilled nursing facility coverage gaps. Two-Midnight Rule compliance, critical care documentation, and concurrent attending and consulting physician billing all create complex, high-value denial risk. ProtoMed's certified hospital billing specialists protect every inpatient encounter. Fewer denials. Faster reimbursements. More revenue.

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Clean Claim Rate

98%+

Clean Claim Rate

We review every hospital encounter before submission, catching admission status compliance issues, DRG-affecting diagnosis gaps, critical care time documentation errors, and concurrent care billing conflicts before they trigger high-value denials.

98%+

Clean Claim Rate

< 15 Days

Average A/R Days

Up to 30%

Revenue Increase

100%

HIPAA Compliant

Why Choose Us

Stop Losing Hospital Revenue to DRG Undercoding and Admission Status Errors

Hospital billing is where the highest-value claims in medicine are created, and where the highest-value claim errors are made. Under DRG-based reimbursement, the diagnoses documented in the patient record directly determine which DRG is assigned and therefore how much Medicare pays for the entire admission. A patient admitted with pneumonia and sepsis, but documented only as pneumonia, is assigned to a lower-paying DRG, and the difference can be thousands of dollars per case. A patient kept for observation rather than admitted inpatient may lose their Medicare SNF coverage, creating patient financial harm and payer disputes that trace back to an admission status decision.

ProtoMed's certified hospital billing team understands the full complexity of inpatient physician billing: DRG-sensitive diagnosis documentation, admission versus observation status compliance under the Two-Midnight Rule, hospital E/M level selection (initial and subsequent hospital care codes), critical care time documentation, and concurrent care billing rules when multiple physicians are attending the same patient. We submit clean claims, prevent the admission documentation failures that cost hospitals thousands per case, and follow up on every denial so your billing reflects the full complexity of care provided.

Certified Hospital Billing Specialists

Every biller on your account holds active AAPC and AHIMA credentials with hands-on experience in hospital E/M coding, DRG documentation requirements, admission status rules, critical care coding, and concurrent physician billing.

98%+ Clean Claim Rate

Zero-Friction Access

We securely log into your existing hospital EHR and physician billing system, Epic, Cerner, Meditech, and more, with zero disruption to your hospital rounding or clinical operations.

End-to-End Claims Management

From admission status documentation review and hospital E/M coding to claim submission, denial appeals, and payment posting, we manage your complete hospital billing cycle.

Proactive Denial Management

Every rejected claim is investigated, corrected, and resubmitted with the clinical documentation required for reversal, including medical necessity appeals for observation-to-inpatient status challenges.

Transparent Financial Reporting

Monthly reports and real-time billing data give you a clear picture of your hospital revenue, DRG-level reimbursement rates, admission status distribution, denial patterns, and overall inpatient financial performance.

Our Expertise

Hospital Billing Expertise That Reduces Denials

Hospital physician billing spans initial and subsequent inpatient care, critical care, hospital observation, discharge day management, and concurrent specialty consultations, each with distinct E/M level selection criteria, time documentation requirements, and admission status compliance rules. Our certified coders know every code and billing rule across the full hospital care spectrum.

CPT 99221–99223

Initial hospital care: low, moderate, and high complexity E/M with documentation requirements

CPT 99231–99233

Subsequent hospital care: daily rounds billing with MDM or time-based complexity levels

CPT 99234–99236

Observation or inpatient care: same-day admission and discharge with complexity levels

CPT 99291–99292

Critical care: time-based billing with exact documentation and bundled service rules

CPT 99238–99239

Hospital discharge day management: under 30 minutes and over 30 minutes billing

CPT 99251–99255

Inpatient consultations: initial and follow-up hospital consultation coding

Two-Midnight Rule

Admission status compliance: inpatient vs observation criteria and medical necessity documentation

Procedure-Specific Billing

Specialized Billing for Every Hospital Service

Hospital billing demands precise E/M level selection, DRG-sensitive diagnosis documentation, Two-Midnight Rule compliance, and concurrent care billing accuracy on every high-value inpatient encounter. ProtoMed's certified team handles every hospital service type correctly.

Initial & Subsequent Hospital Care Billing

Initial hospital care codes (99221–99223) must reflect the complexity of the admission assessment, low, moderate, or high. Daily subsequent care visits (99231–99233) require ongoing MDM documentation that supports the complexity level billed. The difference between a 99232 and a 99233 is the documented management decision complexity, and systematically billing at 99232 when 99233 is justified is revenue lost on every rounding visit. We select the correct initial and subsequent hospital care levels based on documented MDM and protect your daily rounding revenue from undercoding.

Admission Status & Two-Midnight Rule Compliance

Medicare's Two-Midnight Rule requires that inpatient admission be medically necessary for a stay expected to span two midnights. Patients kept for observation rather than admitted as inpatient receive no Medicare SNF coverage after discharge, creating patient financial harm and payer disputes. When admission status is challenged by payers, the physician documentation of why inpatient admission was medically necessary is the critical evidence. We review admission status documentation for Two-Midnight Rule compliance and support medical necessity appeals when admission status is retrospectively challenged.

Critical Care Billing

Critical care billing (CPT 99291–99292) is time-based and requires documented start and stop times for each critical care period, explicit documentation of a critical illness or injury, and accurate identification of services that are bundled into the critical care code versus separately billable. Many physicians document "critical care provided" without the required time specificity, resulting in denied or downgraded claims. We ensure every critical care encounter is documented to the exact standard required for first-pass payment and appeal every critical care downgrade with clinical time evidence.

Hospital Discharge Day Management

Discharge day management billing distinguishes between encounters lasting under 30 minutes (CPT 99238) and those requiring more than 30 minutes (CPT 99239). The time spent on discharge, reviewing discharge instructions, prescriptions, test results, and coordinating post-acute care, must be documented and totaled. Billing 99238 when 99239 is justified loses reimbursement on every eligible discharge. We accurately document and bill discharge day management, capturing the higher-value code when the documented time supports it.

Inpatient Consultation Billing

Consultations in the hospital setting must be clearly documented as a request from an attending physician, with the consultant's opinion and advice communicated back to the requesting physician. When the consultation becomes ongoing co-management, the billing transitions from consultation codes to subsequent hospital care. We accurately distinguish initial consultation from co-management billing, apply the correct inpatient consultation codes, and manage the billing transition when consultants assume shared management responsibility.

Concurrent Care & Multi-Physician Billing

When multiple physicians attend the same inpatient simultaneously, a hospitalist managing the primary admission while a cardiologist, pulmonologist, and infectious disease specialist all provide concurrent care, each physician bills for their own separately identifiable services. Payers review concurrent care claims for duplication and may deny if the services appear redundant. We ensure each physician's hospital billing reflects a distinct, documented clinical contribution to patient care, protecting every concurrent care claim from duplication denials.

Our Process

How ProtoMed's Hospital Billing Process Works

A structured four-step process that protects high-value inpatient physician revenue, from admission documentation review and E/M level optimization through critical care coding and final payment posting.

Practice Audit & Revenue Gap Analysis

We review your current hospital billing setup, identify systematic revenue losses from E/M undercoding, critical care documentation gaps, admission status compliance issues, and unresolved inpatient denials, then securely access your existing hospital EHR and physician billing system with zero disruption to your rounding schedule.

Admission Documentation Review & Status Compliance

Before claim submission, we review admission documentation for Two-Midnight Rule compliance, verify that medical necessity for inpatient admission is clearly supported in the physician record, and identify any admission status issues that should be addressed before the claim is submitted. Catching admission documentation gaps early prevents the most costly and hardest-to-reverse hospital claim denials.

Encounter Coding, Scrubbing & Claim Submission

Our certified hospital coders review every inpatient encounter, select the correct initial and subsequent care E/M levels based on documented MDM, verify critical care time documentation, apply the correct discharge day management code, and scrub each claim for concurrent care conflicts before submission. Claims are submitted electronically on time to Medicare, Medicaid, Medicare Advantage, and all major commercial payers.

Denial Management, Payment Posting & Reporting

Every denied claim is investigated and appealed with the physician documentation required for reversal, including medical necessity letters for admission status disputes and clinical time evidence for critical care denials. Payments are posted accurately and you receive clear monthly reports on your hospital revenue, E/M level distribution, critical care billing rates, and denial patterns by payer.

Ready to Protect Every High-Value Hospital Encounter Your Team Provides?

Let ProtoMed's certified hospital billing specialists handle your complete inpatient revenue cycle, from admission documentation review and E/M level optimization to critical care coding, Two-Midnight Rule compliance, concurrent care billing, and high-value denial appeals. We'll audit your current billing, identify where your hospital revenue is being lost, and start recovering it.

Request Your Free Consultation

Get your free hospital billing audit today. A ProtoMed expert will reach out within 24 hours.

100% HIPAA Compliant AAPC & AHIMA Certified No Long-Term Contracts All 50 States 30+ Specialties