14.3 Hospital-Acquired Conditions (HAC) Reduction & Quality Programs

Hospital-Acquired Conditions (HAC) Reduction & Quality Programs

AHIMA CCS Exam Focus: Healthcare payment systems have fundamentally shifted from volume-based fee-for-service to value-based, quality-driven purchasing. On the CCS examination, candidates are tested extensively on the CMS Hospital-Acquired Conditions (HAC) Payment Provision, the impact of Present on Admission (POA) indicators on MS-DRG grouping, the 14 CMS-selected HAC categories, the Hospital-Acquired Condition Reduction Program (HACRP) 1% penalty, the Hospital Readmissions Reduction Program (HRRP) 30-day readmissions penalty, and the Hospital Value-Based Purchasing (VBP) program.

---

1. The CMS Hospital-Acquired Conditions (HAC) Payment Provision

Enacted under the Deficit Reduction Act of 2005 (DRA) and Section 1886(d)(4)(D) of the Social Security Act, the CMS Hospital-Acquired Conditions (HAC) Payment Provision established a statutory mandate preventing Medicare from paying hospitals a higher reimbursement for preventable complications that develop during an inpatient stay.

The Core Statutory Mechanism

Under traditional MS-DRG payment mechanics, when a patient admitted with a baseline illness (e.g., congestive heart failure) develops a major secondary complication during the stay (e.g., a severe catheter-associated bloodstream infection or a hospital fall resulting in a hip fracture), the secondary condition acts as a Complication/Comorbidity (CC) or Major CC (MCC). Absent the HAC rule, a qualifying secondary CC/MCC could shift an eligible claim into a higher-weighted severity tier. The HAC Payment Provision prevents that increase when its code and POA requirements are met:

$\text{Condition on HAC List} + \text{POA Indicator } \mathbf{N} \text{ or } \mathbf{U} \implies \mathbf{CC/MCC\ Status\ Suppressed\ for\ MS-DRG\ Grouping}$

                    HAC Payment Provision Decision Tree
                                     │
        ┌────────────────────────────┴────────────────────────────┐
        ▼                                                         ▼
Secondary Condition is on HAC List                    Secondary Condition is NOT on HAC List
(e.g., Stage 4 Pressure Injury)                       (e.g., Acute Kidney Injury)
        │                                                         │
        ├────────────────────────────┐                            ▼
        ▼                            ▼                  Standard POA Logic:
POA = 'Y' or 'W'             POA = 'N' or 'U'           POA = 'Y' ➔ Retains CC/MCC
(Present at Admission)       (Hospital-Acquired)        POA = 'N' ➔ Retains CC/MCC (if non-HAC)
        │                            │
        ▼                            ▼
Retains Full CC/MCC Weight   CC/MCC Weight SUPPRESSED
MS-DRG Groups with CC/MCC    Condition Does Not Raise the CC/MCC Severity Tier

Critical Coding Impact on MS-DRG Grouping

• If a secondary condition on the HAC list was Present on Admission (POA = Y or W), it retains its normal CC or MCC status and drives the MS-DRG to a higher payment tier.
• If the secondary condition was NOT Present on Admission (POA = N or U), the MS-DRG grouper suppresses the CC/MCC status of that code. If the patient has no other valid CC/MCC secondary diagnoses, the claim drops to the lower-paying base MS-DRG (without CC/MCC).

---

2. The 14 CMS-Selected Hospital-Acquired Condition (HAC) Categories

CMS identifies 14 high-cost, high-volume, or both, clinical condition categories that could reasonably have been prevented through the application of evidence-based clinical guidelines:

                         The 14 CMS HAC Categories
  ┌─────┬───────────────────────────────────────────────────────────────────────────┐
  │  #  │ HAC Clinical Category Title & Diagnostic Description                      │
  ├─────┼───────────────────────────────────────────────────────────────────────────┤
  │  1  │ Foreign Object Retained After Surgery (Gauze, sponge, needle, retractor)  │
  │  2  │ Air Embolism (Iatrogenic intravascular air embolism)                      │
  │  3  │ Blood Incompatibility (ABO / Rh transfusion reaction errors)              │
  │  4  │ Stage 3 and Stage 4 Pressure Ulcers (Hospital-acquired skin breakdown)    │
  │  5  │ Falls and Trauma (Fractures, dislocations, intracranial injury, burns)    │
  │  6  │ Catheter-Associated Urinary Tract Infections (CAUTI)                      │
  │  7  │ Vascular Catheter-Associated Infections (CLABSI bloodstream infections)   │
  │  8  │ Surgical Site Infection (SSI) Post-CABG — Mediastinitis                   │
  │  9  │ Surgical Site Infection (SSI) Post-Bariatric Surgery (Gastric bypass)    │
  │ 10  │ Surgical Site Infection (SSI) Post-Orthopedic Surgery (Spine/Neck/Elbow)  │
  │ 11  │ Surgical Site Infection (SSI) Post-CIED (Pacemakers / Defibrillators)    │
  │ 12  │ Deep Vein Thrombosis (DVT) / PE Post-Total Knee / Total Hip Replacement   │
  │ 13  │ Poor Glycemic Control (DKA, Hypoglycemic Coma, Hyperosmolar Coma)         │
  │ 14  │ Iatrogenic Pneumothorax with Venous Catheterization                       │
  └─────┴───────────────────────────────────────────────────────────────────────────┘

Detailed Breakdown of Key Categories for the CCS Exam

1. Foreign Object Retained After Surgery (T81.5-): Unintended retention of surgical sponges, needles, clamps, or instruments following operative procedures. It is a serious reportable safety event and a CMS HAC category when the applicable code and POA requirements are met.
2. Air Embolism (T80.0-): Introduction of air into the vascular system following infusion, transfusion, or invasive catheterization.
3. Blood Incompatibility (T80.3-): Hemolytic transfusion reactions resulting from the administration of ABO/Rh incompatible blood products.
4. Stage 3 and 4 Pressure Ulcers (L89.---): Full-thickness skin loss extending into subcutaneous tissue (Stage 3) or muscle/bone (Stage 4). Note: The selected HAC pressure-injury category covers the applicable Stage 3 and Stage 4 codes. Determine payment suppression from the current HAC code list and POA indicator, not by severity status alone.
5. Falls and Trauma: In-hospital traumatic injuries resulting from patient falls, including fractures (femur, hip, radius), joint dislocations, intracranial injuries (subdural/epidural hematoma), crushing injuries, and severe thermal burns.
6. Catheter-Associated Urinary Tract Infections (CAUTI) (N39.0 with T83.511-): Infection of the urinary tract developing after the placement of an indwelling urethral catheter.
7. Vascular Catheter-Associated Bloodstream Infections (CLABSI) (T80.211-): Central line-associated bloodstream infections occurring during hospitalization.
8. Surgical Site Infections (SSIs): Mediastinitis after CABG (T81.4-), surgical site infections following laparoscopic gastric restrictive procedures, and joint/spine infections following specific elective orthopedic procedures.
9. Deep Vein Thrombosis (DVT) / Pulmonary Embolism (PE) Following Total Knee or Hip Arthroplasty (I26.-, I82.4-): Hospital-acquired acute venous thromboembolism following elective joint replacement.
10. Iatrogenic Pneumothorax (J95.811): Accidental puncture of the pleura during central venous catheter placement, subclavian vein catheterization, or chest biopsy.

---

3. Hospital-Acquired Condition Reduction Program (HACRP)

Established by Section 3008 of the Affordable Care Act (ACA), the Hospital-Acquired Condition Reduction Program (HACRP) is a mandatory federal quality penalty program that evaluates hospital safety performance.

                      HACRP Operational Structure
  ┌─────────────────────────────────────────────────────────────────────────┐
  │                       Total HAC Score Calculation                       │
  ├────────────────────────────────────┬────────────────────────────────────┤
  │     CMS Recalibrated PSI 90        │         CDC NHSN Measures          │
  │     (Claims-Based Measure)         │     (Clinical Registry HAIs)       │
  ├────────────────────────────────────┼────────────────────────────────────┤
  │ • PSI 03: Pressure Ulcer Rate      │ • CAUTI (Urinary Catheter)         │
  │ • PSI 06: Iatrogenic Pneumothorax  │ • CLABSI (Central Line Bloodstream)│
  │ • PSI 08: In-Hospital Fall Rate    │ • SSI (Colon & Abdominal Hyst)     │
  │ • PSI 09: Postoperative Hemorrhage │ • MRSA Bacteremia                  │
  │ • PSI 10: Postop AKI Requiring Dialysis                                  │
  │ • PSI 11: Postoperative Respiratory Failure                               │
  │ • PSI 12: Perioperative PE/DVT       │ • C. difficile Infection           │
  │ • PSI 13: Postoperative Sepsis       │                                    │
  │ • PSI 14: Postoperative Wound Dehiscence                                  │
  │ • PSI 15: Abdominopelvic Accidental Puncture/Laceration                   │
  └────────────────────────────────────┴────────────────────────────────────┘
                                       │
                                       ▼
          [Hospitals Ranked Nationally by Total HAC Score (Quartiles)]
                                       │
                                       ▼
  ┌─────────────────────────────────────────────────────────────────────────┐
  │                      THE HACRP 1% PAYMENT PENALTY                       │
  │ Applicable hospitals above the 75th percentile of Total HAC Scores       │
  │   Receive a 1% reduction on Medicare FFS payments for the fiscal year  │
  └─────────────────────────────────────────────────────────────────────────┘

• Penalty Structure: Applicable subsection (d) hospitals with a Total HAC Score above the 75th percentile receive a 1% reduction on overall Medicare fee-for-service payments for the fiscal year's discharges. The HACRP is separate from the claim-level HAC/POA payment provision described above.

---

4. Hospital Readmissions Reduction Program (HRRP)

Established under Section 3025 of the ACA, the Hospital Readmissions Reduction Program (HRRP) penalizes hospitals with excess, unplanned 30-day all-cause readmissions following discharge for specific baseline condition cohorts.

                         The 6 HRRP Clinical Cohorts
  ┌─────────────────────────────────────────────────────────────────────────┐
  │ 1. Acute Myocardial Infarction (AMI)                                    │
  │ 2. Heart Failure (HF)                                                   │
  │ 3. Pneumonia (PNA) (including aspiration pneumonia & sepsis with PNA)   │
  │ 4. Chronic Obstructive Pulmonary Disease (COPD)                         │
  │ 5. Elective Primary Total Hip Arthroplasty (THA) / Total Knee (TKA)     │
  │ 6. Coronary Artery Bypass Graft (CABG) Surgery                          │
  └─────────────────────────────────────────────────────────────────────────┘

• The 30-Day Rule: Evaluates unplanned readmissions to any acute care hospital within 30 days of discharge from the index admission, regardless of whether the readmission is for the same condition or a different clinical problem.
• Statutory Penalty Cap: The maximum penalty under HRRP is a 3% reduction applied across all base Medicare inpatient operating DRG payments.

---

5. Hospital Value-Based Purchasing (VBP) Program

Authorized by Section 3001 of the ACA, the Hospital Value-Based Purchasing (VBP) Program transitions Medicare payments from volume to quality by withholding 2.0% of all participating inpatient IPPS base operating DRG payments and redistributing those funds to hospitals based on their Total Performance Score (TPS).