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    v1.0.28
    OpenPayerBilling CodesDiseases and Disorders of the Musculoskeletal System and Connective TissueDRG 533-fractures-of-femur-with-mcc
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    Fractures of Femur with Major Complication or Comorbidity: Inpatient Reimbursement Overview

    DRG 533 addresses inpatient care for femur fractures with a Major Complication or Comorbidity and captures admissions with higher clinical complexity. It matters for inpatient reimbursement because the added severity elevates payment to reflect increased resource utilization and longer hospital stays under Medicare rules.

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    DRG 533 Overview

    DRG 533 covers inpatient admissions for fractures of the femur accompanied by a Major Complication or Comorbidity, typically including complex proximal femur fractures, periprosthetic fractures, and high-risk surgical repairs in older adults. This Diagnosis-Related Group is significant for Medicare payment because the presence of a Major Complication or Comorbidity increases resource use, length of stay, and reimbursement relative to lower-severity femur fracture groups. Accurate coding of the fracture type and the Major Complication or Comorbidity is essential for correct assignment to this Diagnosis-Related Group. Hospitals must document clinical complexity that drives higher inpatient resource consumption.

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    Clinical Trials

    • Acute surgical intervention and timing studies: randomized or observational studies comparing immediate versus delayed surgical fixation (including intramedullary nailing or hemiarthroplasty) for elderly patients with femoral fractures complicated by major comorbid conditions (eg, unstable cardiovascular disease, anticoagulation, or acute infection). These trials focus on perioperative timing, anesthetic approaches, and short-term surgical outcomes such as operative complications, ICU admission, and in-hospital mortality, addressing the high acuity and complexity typical of DRG 533. Results inform clinicians about risk–benefit tradeoffs for urgent operative management and help payers anticipate resource utilization tied to surgical timing and complication rates.
    • Comparative effectiveness and care pathway studies during index hospitalization: pragmatic trials or large-scale registry analyses comparing different inpatient care bundles (orthogeriatric co-management, standardized VTE prophylaxis and transfusion thresholds, multimodal pain protocols, and mobility/physical therapy initiation strategies) in patients with femur fractures and major complications. The population includes older adults with MCC such as heart failure, COPD, renal impairment or delirium, and the questions center on which integrated care pathways reduce length of stay, complication rates, and in-hospital costs. Providers use these findings to optimize clinical protocols, while payers evaluate which pathways improve outcomes and reduce readmissions and high-cost inpatient resource use associated with DRG 533.
    • Post-discharge outcomes and secondary prevention studies: prospective cohort studies and randomized interventions testing post-acute rehabilitation models, transitional care programs, osteoporosis management, and fall-prevention strategies among survivors of femoral fracture with major comorbidities. These studies enroll patients discharged after complex inpatient stays to measure functional recovery, return to independence, 30- and 90-day readmissions, and subsequent fracture risk, highlighting long-term sequelae for a population with high mortality and morbidity. Findings are relevant for discharge planning and for payers assessing post-acute care needs, bundled payment design, and interventions that may reduce downstream utilization and repeat admissions.

    Related Codes

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    Multiple Level Combined Anterior and Posterior Spinal Fusion Except Cervical with CC: Inpatient Reimbursement Overview

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    Multiple Level Combined Anterior and Posterior Spinal Fusion Except Cervical without CC/MCC: Inpatient Reimbursement Overview

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    430-COMBINED-ANTERIOR-AND-POSTERIOR-CERVICAL-SPINAL-FUSION-WITHOUT-MCC

    Combined Anterior and Posterior Cervical Spinal Fusion without MCC: Inpatient Reimbursement Overview

    447-MULTIPLE-LEVEL-SPINAL-FUSION-EXCEPT-CERVICAL-WITH-MCC-OR-CUSTOM-MADE-ANATOMICALLY-DESIGNED-INTERBODY-FUSION-DEVICE

    Multiple Level Spinal Fusion Except Cervical with MCC: Inpatient Reimbursement Overview

    448-MULTIPLE-LEVEL-SPINAL-FUSION-EXCEPT-CERVICAL-WITHOUT-MCC

    Multiple Level Spinal Fusion Except Cervical without MCC: Inpatient Reimbursement Overview

    450-SINGLE-LEVEL-SPINAL-FUSION-EXCEPT-CERVICAL-WITH-MCC-OR-CUSTOM-MADE-ANATOMICALLY-DESIGNED-INTERBODY-FUSION-DEVICE

    Single Level Spinal Fusion Except Cervical with MCC or Custom-Made Device: Inpatient Reimbursement Overview

    451-SINGLE-LEVEL-SPINAL-FUSION-EXCEPT-CERVICAL-WITHOUT-MCC

    Single Level Spinal Fusion Except Cervical without MCC: Inpatient Reimbursement Overview

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    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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