Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.30
    OpenPayerBilling CodesDiseases and Disorders of the Nervous SystemDRG 027-craniotomy-and-endovascular-intracranial-procedures-without-cc-mcc
    Ask Trek AI about this page

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

    DRG 027 covers craniotomy and endovascular intracranial procedures without Major Complication or Comorbidity and without Complication or Comorbidity, encompassing surgical and endovascular treatments for intracranial conditions where no significant secondary diagnoses are present. This grouping matters for inpatient reimbursement because it establishes the standardized Medicare Severity Diagnosis-Related Group payment for uncomplicated cases and influences hospital payment for neurosurgical and neurointerventional services.

    Customize your policy alerts

    Sign up for drg 027 policy alerts

    Get alerted when payer policies referencing 027 are released or updated.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    DRG 027 Overview

    DRG 027 includes inpatient hospital admissions for craniotomy and endovascular intracranial procedures without a Major Complication or Comorbidity and without a Complication or Comorbidity. It typically covers surgical or endovascular treatment of intracranial pathology such as tumor resection, vascular malformation repair, or aneurysm clipping/coiling when no significant secondary diagnoses increase resource use. This Diagnosis-Related Group matters for Medicare payment because it groups clinically similar cases with expected comparable resource consumption and establishes the base payment for uncomplicated procedures. Accurate clinical coding and documentation determine assignment to this Diagnosis-Related Group and thereby affect inpatient reimbursement.

    Table of contents

    Progress1 / 3

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • Facility ComparisonBeds, revenue & payer mix
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    Clinical Trials

    • Acute procedural efficacy and safety trials evaluating minimally invasive techniques for intracranial hemorrhage evacuation or aneurysm repair: These studies enroll adult patients undergoing craniotomy or endovascular intracranial procedures for acute aneurysmal subarachnoid hemorrhage, symptomatic intracerebral hemorrhage, or ruptured vascular lesions, comparing novel operative approaches, intraoperative imaging adjuncts, or peri‑procedural management protocols to standard practice. They measure perioperative neurological outcomes, complication rates (rebleeding, vasospasm, ischemia), and short‑term functional status, which directly informs surgeons and payers about procedural risk profiles, length of stay drivers, and immediate resource utilization for patients classified under this DRG.
    • Comparative effectiveness research contrasting open craniotomy versus endovascular approaches for elective cerebrovascular lesions: These observational cohort studies or pragmatic randomized trials target patients with unruptured aneurysms, arteriovenous malformations, or symptomatic stenotic intracranial lesions to determine differences in clinical outcomes, reintervention rates, and cost‑effectiveness between modalities. Findings guide provider decision‑making about procedure selection, inform bundled payment strategies, and help payers and hospitals anticipate downstream costs such as ICU utilization and readmissions associated with each approach.
    • Post‑discharge outcomes and rehabilitation trials focused on functional recovery and readmission reduction after intracranial procedures: These studies follow patients discharged after craniotomy or endovascular intracranial interventions to test care‑transition interventions, tailored neurorehabilitation programs, or remote monitoring to improve 30‑ and 90‑day functional outcomes, minimize complications like wound infection or delayed hydrocephalus, and reduce avoidable readmissions. Results are relevant to inpatient case managers and payers because they identify interventions that shorten overall episode cost, improve quality metrics (functional independence, discharge disposition), and lower post‑acute care utilization for this DRG.

    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

    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

    030-SPINAL-PROCEDURES-WITHOUT-CC-MCC

    Spinal Procedures without CC/MCC: Inpatient Reimbursement Overview

    Showing 1–10 of 71

    • More pages

    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.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.