Inpatient Coding Specialists

Expert IP-DRG Coding Services That Maximize Inpatient Revenue

Alpine Pro Health delivers certified, AI-assisted Inpatient Diagnosis Related Group (IP-DRG) coding — ensuring accurate assignment, full compliance, and optimized reimbursement for hospitals and health systems across the U.S.

IP-DRG Coding Services | Inpatient DRG Coding Experts | Alpine Pro Health
Certifications
SOC 2 Type II ISO 9001:2015 ISO/IEC 20000-1:2018 ISO/IEC 27001:2022 HIPAA Compliant CMS IPPS 2025 OIG Audit Ready
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Patient Admission & Diagnosis Principal and secondary diagnoses captured from clinical documentation
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ICD-10-CM/PCS Code Assignment Precise ICD-10 codes applied to diagnoses and inpatient procedures
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Grouper Logic & DRG Assignment MS-DRG or APR-DRG grouper maps codes to the correct DRG weight
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Reimbursement Calculation DRG relative weight × hospital base rate = final Medicare payment
Compliance & Audit Ready Full documentation trail, CC/MCC capture, and quality review
Understanding IP-DRG

What Is IP-DRG Coding —
and Why Does It Matter?

Inpatient Diagnosis-Related Group (IP-DRG) coding is the classification system used by Medicare, Medicaid, and most payers to determine reimbursement for hospital inpatient stays. Each episode of care is assigned a DRG code based on the principal diagnosis, secondary diagnoses, procedures performed, complications, comorbidities (CC/MCC), patient age, and discharge disposition.

Inaccurate DRG assignment — even by a single missed CC or MCC — can result in significant revenue loss, claim denials, or compliance exposure. Alpine Pro Health's certified coders specialize in maximizing appropriate DRG capture so your facility receives every dollar it has earned.

DRG Systems We Code

MS-DRG (Medicare) APR-DRG AP-DRG IR-DRG ICD-10-CM/PCS SOI / ROM HAC Screening POA Indicators
Our IP-DRG Services

End-to-End Inpatient Coding Solutions

From chart abstraction to DRG validation, our certified coders cover every aspect of inpatient revenue integrity.

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MS-DRG Coding & Optimization

Accurate principal diagnosis selection, ICD-10-PCS procedure coding, and CC/MCC capture to ensure proper Medicare Severity DRG assignment and reimbursement.

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Clinical Documentation Review

Concurrent and retrospective review of inpatient records to identify documentation gaps that could downgrade DRG assignment or trigger audits.

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APR-DRG Coding (Medicaid & Commercial)

All Patient Refined DRG coding for Medicaid and commercial payers, capturing Severity of Illness (SOI) and Risk of Mortality (ROM) levels accurately.

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CDI Integration & Query Support

Collaborative CDI programs that bridge the gap between clinical documentation and coding, improving specificity, completeness, and DRG accuracy.

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DRG Validation & Second-Level Review

Independent DRG validation audits to catch under-coding, over-coding, and coding errors before claims are submitted — protecting revenue and reducing audit risk.

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Retrospective Coding & Rebilling

Comprehensive retrospective review of previously coded inpatient accounts to identify missed revenue opportunities and submit corrected claims compliantly.

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HAC & POA Coding

Present on Admission (POA) indicator assignment and Hospital-Acquired Condition (HAC) screening to protect reimbursement and maintain regulatory compliance.

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Denials Management & Coding Appeals

Expert-led clinical coding appeals for DRG-related claim denials, with detailed coding justification letters and peer-to-peer support.

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AI-Assisted Inpatient Coding

GenAI and LLM-powered coding workflows that accelerate chart review, flag documentation gaps, and recommend DRG assignments — reviewed and validated by certified coders.

Why Alpine Pro Health

Your Inpatient Revenue Depends on Coding Precision

We combine certified expertise, advanced technology, and deep inpatient coding knowledge to deliver results that move the needle on your bottom line.

01
AHIMA & AAPC Certified Coders All inpatient coders hold CCS, CIC, or equivalent credentials with dedicated MS-DRG and APR-DRG specialization.
02
GenAI-Powered Workflow Our proprietary AI tools surface documentation gaps, CC/MCC opportunities, and POA concerns in real time before coding.
03
99%+ Accuracy with Ongoing QA Every account undergoes multi-level quality review. We track accuracy metrics per coder and per facility type.
04
Scalable Capacity, Fast Turnaround Flexible staffing models handle surge volume, backlog clearance, and 24–48 hour TAT for standard inpatient accounts.
05
Full HIPAA Compliance & Data Security SOC 2-aligned infrastructure, encrypted data pipelines, and role-based access controls safeguard all PHI.
99%
Coding accuracy rate across all inpatient specialties
40%
Average reduction in DRG-related claim denials
2M+
Inpatient charts successfully coded and validated
30%
Reduction in operational coding costs vs. in-house teams
Our Process

How We Deliver Accurate IP-DRG Coding

A streamlined, technology-enabled workflow from chart intake to clean claim submission.

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Chart Intake & Abstraction

Secure EHR access or chart upload. AI pre-reads for key diagnoses, procedures, and documentation cues.

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ICD-10-CM/PCS Coding

Certified coders assign principal & secondary diagnoses, inpatient procedures, POA indicators.

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DRG Grouping & Validation

DRG grouper run. CC/MCC checked. SOI/ROM levels validated. Discrepancies flagged for CDI query.

Quality Review & Audit

Second-level QA review. Compliance checks against CMS IPPS, PEPPER, and payer-specific guidelines.

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Claim Submission & Reporting

Coded data delivered to your billing system. Monthly DRG mix reports and performance dashboards.

Coding Expertise

Inpatient Specialties We Code

Our coders are trained across high-complexity inpatient MDCs and surgical DRG families.

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Cardiology & Cardiovascular Surgery

MDC 5 — High-complexity, high-reimbursement DRGs

  • Coronary artery bypass grafting (CABG) — DRG 231–236
  • AMI, heart failure with CC/MCC capture
  • PTCA, valve replacement, pacemaker/ICD implant
  • Cardiac catheterization and electrophysiology
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Neurology & Neurosurgery

MDC 1 — Stroke, craniotomy, spinal procedures

  • Stroke, TIA, and intracranial hemorrhage coding
  • Craniotomy and complex spinal surgery DRGs
  • Seizures, encephalopathy, altered mental status
  • Traumatic brain injury with MCC differentiation
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Orthopedics & Musculoskeletal

MDC 8 — High-volume surgical DRGs

  • Total joint replacement (hip, knee) — DRG 469–470
  • Fracture management and spinal fusion coding
  • Revision arthroplasty with CC/MCC distinction
  • Amputation and soft tissue procedures
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Pulmonology & Critical Care

MDC 4 — Respiratory, ventilator, and ICU DRGs

  • Respiratory failure, ARDS, mechanical ventilation
  • COPD, pneumonia, pulmonary embolism
  • Sepsis coding with organ dysfunction capture
  • Post-COVID complications and long COVID inpatient
Compliance & Standards

Coding That Stands Up to Scrutiny

Alpine Pro Health's IP-DRG services are built on a foundation of regulatory compliance, consistent with all CMS, OIG, and payer-specific guidelines.

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CMS IPPS Compliance

Full alignment with CMS Inpatient Prospective Payment System rules, annual ICD-10 updates, and Official Coding Guidelines.

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OIG & RAC Audit Readiness

Coding decisions are documented and defensible, with a focus on DRG pairs and codes historically targeted by RAC, MAC, and OIG auditors.

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UHDDS Compliance

Strict adherence to Uniform Hospital Discharge Data Set (UHDDS) guidelines for principal diagnosis selection and procedure sequencing.

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HIPAA & Data Security

All PHI is handled under HIPAA-compliant protocols with encrypted transfers, strict access controls, and signed BAAs.

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PEPPER Benchmarking

We use CMS Program for Evaluating Payment Patterns Electronic Report data to benchmark your DRG mix and identify outlier risk areas.

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Payer-Specific Guidelines

Coding aligned to Medicare, Medicaid, commercial, and managed care payer policies — including Anthem, UHC, Aetna, and Blue Cross plans.

FAQ

Common Questions About IP-DRG Coding

What is the difference between MS-DRG and APR-DRG coding?

MS-DRG (Medicare Severity DRG) is the system used by Medicare for inpatient reimbursement under IPPS, classifying patients into one of ~760 groups based on diagnoses, procedures, and CC/MCC status. APR-DRG (All Patient Refined DRG) is used primarily by Medicaid and commercial payers, adding Severity of Illness (SOI) and Risk of Mortality (ROM) sub-classifications (1–4) to each DRG. Alpine Pro Health codes both systems accurately.

How does missed CC/MCC capture affect DRG reimbursement?

CC/MCC status directly determines which DRG tier a case is assigned to. For example, a pneumonia case without a CC may pay ~$5,400 under DRG 193, while the same case with an MCC moves to DRG 177 and pays ~$10,200. Systematically missing CCs and MCCs across hundreds of discharges per month creates significant, preventable revenue leakage. Our coders and CDI specialists are trained specifically to identify and capture all clinically supported CCs and MCCs.

Can Alpine Pro Health integrate with our existing EHR and billing systems?

Yes. We support integration with over 200 EHR and practice management platforms including Epic, Cerner, Meditech, Allscripts, and Athenahealth. Our team can access your system remotely through secure VPN, or work with chart exports delivered via encrypted SFTP. Coded data is returned in your preferred format (837I, 275 attachment, or direct system entry).

What is your turnaround time for inpatient coding?

Standard inpatient accounts are coded within 24–48 hours. Complex surgical and critical care accounts may require 48–72 hours. For discharge not final billed (DNFB) backlog projects, we provide a detailed project timeline upfront with milestone reporting. We also offer concurrent inpatient coding programs that align with your facility's daily discharge workflow.

How do you handle DRG-related claim denials?

Our denials management team reviews all DRG-related denials, prepares detailed clinical coding rationale letters, and supports peer-to-peer reviews when required. We track denial patterns by payer and DRG family to identify systemic issues and prevent recurrence. Our appeal success rate for coding-related denials exceeds 80%.

Are your coders certified for inpatient coding?

All Alpine Pro Health inpatient coders hold AHIMA or AAPC credentials relevant to inpatient and facility coding — including CCS (Certified Coding Specialist), CIC (Certified Inpatient Coder), and RHIA/RHIT designations. Our coders maintain continuing education and stay current with annual ICD-10 updates, CMS IPPS final rules, and Official Coding Guideline changes.

Ready to Optimize Your
Inpatient DRG Revenue?

Partner with Alpine Pro Health's certified IP-DRG coders and start capturing every dollar your facility has earned — compliantly and accurately.