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    v1.0.28
    OpenPayerBilling CodesDiseases and Disorders of the Respiratory SystemDRG 194-simple-pneumonia-and-pleurisy-with-cc
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    Simple Pneumonia and Pleurisy with CC: Inpatient Reimbursement Overview

    DRG 194 includes inpatient cases of simple pneumonia and pleurisy when a Complication or Comorbidity is present, defining the clinical scope for hospital admission and care intensity. Proper assignment affects Medicare inpatient reimbursement by determining the payment weight and bundled resources for the hospital stay.

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    DRG 194 Overview

    DRG 194 covers inpatient admissions for simple pneumonia and pleurisy with a documented Complication or Comorbidity. This Diagnosis-Related Group groups patients whose pneumonia or pleural inflammation requires hospital care but who do not have a Major Complication or Comorbidity. It matters for Medicare payment because classification in this DRG affects the bundled payment amount and resource intensity assigned to the episode of inpatient care. Accurate coding of the principal diagnosis and any Complication or Comorbidity influences hospital reimbursement and quality reporting.

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    Clinical Trials

    • Acute antimicrobial strategy trials: randomized studies comparing different initial antibiotic regimens, dosing strategies, or durations for hospitalized adults with community-acquired pneumonia and a complicating comorbidity (for example chronic heart or lung disease) who meet criteria for DRG 194. These trials enroll patients at presentation or within the first 24–48 hours of admission to test rapid clinical endpoints such as time to clinical stability, need for ICU transfer, and inpatient length of stay, addressing the immediate management decisions clinicians make. Results inform hospital protocols and payer policies around appropriate antibiotic selection, utilization, and potential impacts on utilization-based payments tied to length of stay and complication rates.
    • Comparative effectiveness and care pathway studies: pragmatic trials or observational comparative-effectiveness research evaluating different inpatient care pathways (such as early mobilization and standardized pneumonia care bundles versus usual care) for patients admitted with simple pneumonia and pleurisy with a complicating condition. These studies focus on real-world hospitalized populations including older adults and those with comorbidities, measuring outcomes like readmission within 30 days, in-hospital complications, total hospital costs, and resource use. Findings are relevant to providers and payers because they identify care processes that reduce complications, shorten stays, and lower readmissions—key drivers of reimbursement and quality metrics for this DRG.
    • Post-discharge outcomes and transitional care studies: prospective cohort studies or randomized trials testing post-discharge interventions (such as structured follow-up, home health coordination, or remote monitoring) for patients recently discharged after an admission coded to DRG 194. These studies enroll patients at discharge to evaluate outcomes including 30- and 90-day readmissions, post-acute healthcare utilization, functional recovery, and patient-reported respiratory health, particularly among elderly patients and those with chronic comorbidities. This research informs payers and providers about interventions that can reduce costly readmissions and downstream resource use, affecting bundled payment designs and post-acute care management strategies.

    Related Codes

    163-MAJOR-CHEST-PROCEDURES-WITH-MCC

    Major Chest Procedures with MCC: Inpatient Reimbursement Overview

    164-MAJOR-CHEST-PROCEDURES-WITH-CC

    Major Chest Procedures with CC: Inpatient Reimbursement Overview

    165-MAJOR-CHEST-PROCEDURES-WITHOUT-CC-MCC

    Major Chest Procedures without CC/MCC: Inpatient Reimbursement Overview

    166-OTHER-RESPIRATORY-SYSTEM-O-R-PROCEDURES-WITH-MCC

    Other Respiratory System O.R. Procedures with MCC: Inpatient Reimbursement Overview

    167-OTHER-RESPIRATORY-SYSTEM-O-R-PROCEDURES-WITH-CC

    Other Respiratory System O.R. Procedures with CC: Inpatient Reimbursement Overview

    168-OTHER-RESPIRATORY-SYSTEM-O-R-PROCEDURES-WITHOUT-CC-MCC

    Other Respiratory System O.R. Procedures without CC/MCC: Inpatient Reimbursement Overview

    173-ULTRASOUND-ACCELERATED-AND-OTHER-THROMBOLYSIS-WITH-PRINCIPAL-DIAGNOSIS-PULMONARY-EMBOLISM

    Ultrasound Accelerated and Other Thrombolysis with Principal Diagnosis Pulmonary Embolism: Inpatient Reimbursement Overview

    175-PULMONARY-EMBOLISM-WITH-MCC-OR-ACUTE-COR-PULMONALE

    Pulmonary Embolism with MCC or Acute Cor Pulmonale: Inpatient Reimbursement Overview

    176-PULMONARY-EMBOLISM-WITHOUT-MCC

    Pulmonary Embolism without MCC: Inpatient Reimbursement Overview

    177-RESPIRATORY-INFECTIONS-AND-INFLAMMATIONS-WITH-MCC

    Respiratory Infections and Inflammations with MCC: Inpatient Reimbursement Overview

    Showing 1–10 of 40

    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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