Summary & Overview
HCPCS G2091: Frailty with Advanced Illness in Patients 66+
HCPCS Level II code G2091 designates patients aged 66 and older with at least one recorded encounter for frailty during a measurement period and a concurrent or recent advanced illness diagnosis. The code is used for identifying cohorts for quality measurement, care management, and reporting related to frailty and advanced illness in older adults. Its use supports population health efforts aimed at monitoring care needs and outcomes for a high-risk elderly cohort, with implications for risk stratification and service planning nationally.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of what G2091 represents clinically and operationally, the typical service context where the code is documented, and an outline of common modifiers and ancillary fields when available. The publication summarizes benchmarking considerations, reporting applications, and points of clinical context that affect coding and cohort identification. Data not available in the input (such as specific ICD-10 mappings, associated taxonomies, and related codes) are noted as unavailable. The content is intended to inform coding specialists, quality leaders, and health plan analysts about the role of G2091 in national measurement and reporting frameworks.
Billing Code Overview
HCPCS Level II code G2091 identifies patients 66 years of age and older who have at least one claim or encounter for frailty during the measurement period and an advanced illness diagnosis either during the measurement period or in the year prior. This code is used to define a patient cohort for performance measurement or quality reporting related to frailty and serious illness among older adults.
Service type: Population/condition-based quality measurement and cohort identification
Typical site of service: Any clinical or ambulatory setting where diagnoses and encounters are recorded, including primary care offices, specialty clinics, outpatient clinics, and hospital outpatient departments.
Clinical & Coding Specifications
Clinical Context
A typical patient is an ambulatory 78-year-old who presents to a primary care clinic or geriatrics practice with progressive weakness, unintentional weight loss, falls, and decreased activity. During the visit the clinician documents symptoms and performs a frailty assessment (e.g., gait speed, grip strength, or a validated frailty screening tool) and documents an advanced illness diagnosis such as metastatic cancer, advanced heart failure, end-stage lung disease, or advanced dementia noted during the measurement period or in the prior year. The clinical workflow includes: initial history and medication review, focused physical exam, objective frailty screening, documentation of advanced illness diagnosis in the problem list, discussion of goals of care and care plan, and coding of the encounter for quality measurement. Typical sites of service are outpatient primary care, geriatrics clinics, home health visits, and skilled nursing facility encounters where the clinician documents both frailty and an advanced illness diagnosis during the measurement period.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required to provide the service is substantially greater than typically required and documentation supports the increased work for the encounter where additional complexity (e.g., complex care coordination for advanced illness) is present. |