Summary & Overview
HCPCS G4008: Geriatrics MIPS Specialty Set
HCPCS Level II code G4008 designates the Geriatrics MIPS specialty set, a collection of quality measures used by geriatrics clinicians to report performance under the Merit-based Incentive Payment System. This code matters nationally because it standardizes geriatrics-focused quality reporting, supports value-based payment frameworks, and informs quality assessment for older adult care across outpatient settings. Key payers relevant to coverage and reporting expectations include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will learn what G4008 represents, why geriatrics-specific MIPS reporting affects clinicians and health systems, and what to expect in terms of benchmarking and policy context. The publication summarizes national benchmarks where available, recent policy updates affecting MIPS specialty sets, and the clinical context for geriatrics quality measures, including common care domains captured by geriatrics measure sets. Data not available in the input is noted where specific payer-level coverage, associated taxonomies, ICD-10 pairings, and related billing details would normally be listed. The focus is national and intended for clinicians, billing professionals, and policy analysts.
Billing Code Overview
HCPCS Level II code G4008 denotes the Geriatrics MIPS specialty set, a measure set used to report specialty-specific quality measures for clinicians in geriatrics under the Merit-based Incentive Payment System (MIPS). The code identifies performance measurement activity tied to geriatrics-focused care quality and reporting requirements.
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Service Type: Quality measurement and reporting services for geriatric care
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Typical Site of Service: Outpatient geriatric clinics, ambulatory care settings, and other outpatient practice locations where geriatrics providers deliver care
Clinical & Coding Specifications
Clinical Context
A typical patient is an ambulatory older adult established in a geriatrics clinic who is enrolled in the Merit-based Incentive Payment System (MIPS) and requires participation in the geriatrics specialty MIPS quality and improvement reporting set. The patient is commonly aged 65 or older with multiple chronic conditions such as hypertension, type 2 diabetes mellitus, dementia, frailty, or falls. The clinical workflow begins with a scheduled comprehensive or focused geriatrics visit during which the geriatrician, nurse practitioner, or physician assistant performs medication reconciliation, functional and cognitive screening, fall-risk assessment, advance care planning review, and documentation of quality measure data elements required for MIPS reporting. The practice’s MIPS coordinator or certified coder reviews the encounter documentation for completeness, aggregates measure data, and submits the geriatrics specialty set under the G4008 HCPCS Level II code to CMS or the designated QCDR (Qualified Clinical Data Registry). Typical sites of service include outpatient clinics, geriatric specialty practices, and federally qualified health centers that provide longitudinal care to older adults. Common encounter scenarios include annual wellness visits with geriatrics-focused assessments, transitional care visits after hospitalization to capture follow-up measures, and chronic care management visits where multiple MIPS measures are documented for the specialty set.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 |