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    v1.0.28
    OpenPayerBilling CodesDiseases and Disorders of the Nervous SystemDRG 080-nontraumatic-stupor-and-coma-with-mcc
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    Nontraumatic Stupor and Coma with MCC: Inpatient Reimbursement Overview

    DRG 080 covers inpatient admissions for nontraumatic stupor and coma with a Major Complication or Comorbidity, representing high-acuity neurologic presentations. Proper assignment of this Diagnosis-Related Group is important for Medicare inpatient reimbursement because it aligns payment with the elevated resource intensity and complexity of care.

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    DRG 080 Overview

    Diagnosis-Related Group 080, Nontraumatic Stupor and Coma with Major Complication or Comorbidity, covers inpatient admissions for patients presenting with nontraumatic disorders of consciousness who have at least one Major Complication or Comorbidity. This group captures high-acuity neurologic care often involving intensive monitoring, neurologic imaging, critical care interventions, and prolonged hospital resources. It matters for Medicare payment because cases classified to this Diagnosis-Related Group typically generate higher reimbursement reflecting the increased resource use and complexity of care. Accurate clinical documentation and coding determine assignment to this Diagnosis-Related Group and therefore the associated inpatient payment.

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    Clinical Trials

    • Acute neuroprotective and resuscitation intervention trials assessing therapies or protocols initiated in the emergency department or intensive care unit to shorten duration of coma and improve neurologic recovery. These studies target patients admitted with nontraumatic stupor or coma due to causes such as hypoxic-ischemic injury, metabolic encephalopathy, severe sepsis, or primary neurologic events (e.g., stroke, intracerebral hemorrhage) and evaluate timing, delivery, and safety of interventions like targeted temperature management protocols, optimization of airway/ventilation strategies, and novel supportive measures. This research is directly relevant to providers and payers because more effective acute management can reduce ICU length of stay, lower complication rates, and change resource intensity and reimbursement associated with DRG 080 admissions.
    • Comparative effectiveness studies of diagnostic strategies and monitoring approaches to identify reversible causes of decreased consciousness and to prognosticate recovery. Trials in this area compare algorithms using combinations of neuroimaging, continuous EEG monitoring, biomarker panels, and structured neurology consult pathways in hospitalized nontraumatic coma patients to determine which approaches most rapidly and accurately guide treatment decisions. Findings inform clinicians and payers about which diagnostic investments and care pathways lead to faster etiologic diagnosis, avoidance of unnecessary tests or prolonged futile care, and more efficient allocation of inpatient resources under this DRG.
    • Post-acute outcomes and care transition studies focusing on rehabilitation timing, disposition, and long-term functional and economic outcomes after hospital discharge for survivors of nontraumatic stupor or coma. These observational cohorts and interventional trials examine early versus delayed rehabilitation initiation, coordinated discharge planning, and outpatient support models for patients with varying degrees of recovery and cognitive impairment. Results are important for hospitals and payers because they affect readmission rates, post-acute care utilization (rehab facility vs home health), long-term disability costs, and strategies to optimize value across the episode of care for patients billed under DRG 080.

    Related Codes

    020-INTRACRANIAL-VASCULAR-PROCEDURES-WITH-PRINCIPAL-DIAGNOSIS-HEMORRHAGE-WITH-MCC

    Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage with MCC: Inpatient Reimbursement Overview

    021-INTRACRANIAL-VASCULAR-PROCEDURES-WITH-PRINCIPAL-DIAGNOSIS-HEMORRHAGE-WITH-CC

    Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage with CC: Inpatient Reimbursement Overview

    022-INTRACRANIAL-VASCULAR-PROCEDURES-WITH-PRINCIPAL-DIAGNOSIS-HEMORRHAGE-WITHOUT-CC-MCC

    Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage without CC/MCC: Inpatient Reimbursement Overview

    023-CRANIOTOMY-WITH-MAJOR-DEVICE-IMPLANT-OR-ACUTE-COMPLEX-CNS-PRINCIPAL-DIAGNOSIS-WITH-MCC-OR-ANTINEOPLASTIC-IMPLANT-OR-EPILEPSY-WITH-NEUROSTIMULATOR

    Craniotomy with Major Device Implant or Complex CNS DRG 023: Inpatient Reimbursement Overview

    024-CRANIOTOMY-WITH-MAJOR-DEVICE-IMPLANT-OR-ACUTE-COMPLEX-CNS-PRINCIPAL-DIAGNOSIS-WITHOUT-MCC

    Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC: Inpatient Reimbursement Overview

    025-CRANIOTOMY-AND-ENDOVASCULAR-INTRACRANIAL-PROCEDURES-WITH-MCC

    Craniotomy and Endovascular Intracranial Procedures with MCC: Inpatient Reimbursement Overview

    026-CRANIOTOMY-AND-ENDOVASCULAR-INTRACRANIAL-PROCEDURES-WITH-CC

    Craniotomy and Endovascular Intracranial Procedures with CC: Inpatient Reimbursement Overview

    027-CRANIOTOMY-AND-ENDOVASCULAR-INTRACRANIAL-PROCEDURES-WITHOUT-CC-MCC

    Craniotomy and Endovascular Intracranial Procedures without CC/MCC: Inpatient Reimbursement Overview

    028-SPINAL-PROCEDURES-WITH-MCC

    Spinal Procedures with MCC: Inpatient Reimbursement Overview

    029-SPINAL-PROCEDURES-WITH-CC-OR-SPINAL-NEUROSTIMULATORS

    Spinal Procedures with CC or Spinal Neurostimulators: 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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