Summary & Overview
HCPCS G9522: Multiple ED Visits or Inpatient Hospitalizations, ≥2
HCPCS Level II code G9522 denotes patients with two or more emergency department visits or inpatient hospitalizations in the past 12 months, or cases where the patient was not screened and no reason was provided. This code is used to capture high-utilization acute care encounters and gaps in screening documentation, which can affect care coordination, risk stratification, and population health metrics nationally. Key payers considered in analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise description of the code's clinical and service context, national relevance for utilization measurement, and the types of benchmarks and policy interpretations typically associated with this code. The publication highlights how G9522 is applied across emergency department and inpatient hospital settings, explains typical use cases for tracking repeated acute encounters or missing screening data, and outlines what is and is not available in the provided input (for example, modifiers, associated taxonomies, and specific ICD-10 links are not supplied). This summary is intended to orient clinicians, coding staff, and policy analysts to the code's purpose and where it fits into utilization monitoring and documentation workflows at a national level.
Billing Code Overview
HCPCS Level II code G9522 captures the total number of emergency department visits and inpatient hospitalizations equal to or greater than two in the past 12 months or patient not screened, reason not given. This measure documents patients who have had multiple acute care encounters or for whom screening status is not recorded with a reason.
Service type: Utilization / Acute Care Encounter Count
Typical site of service: Emergency Department and Inpatient Hospital (acute care hospital settings)
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A patient presents to an outpatient primary care clinic for an annual chronic care visit. The clinician reviews the patients utilization over the prior 12 months and documents that the patient had two or more emergency department visits or inpatient hospitalizations for acute exacerbations of chronic medical conditions (for example, congestive heart failure, COPD exacerbation, uncontrolled diabetes with hyperglycemia, or recurrent falls leading to admission). The care team documents the total number of emergency department visits and inpatient hospitalizations in the past 12 months, and records whether screening for high utilization was completed; if screening was not completed, a reason is documented (for example, patient declined, visit time constraints, or incomplete records). Typical workflow includes: review of the electronic health record and health information exchange for utilization data; clinician interview to confirm events and reasons; structured documentation in the visit note that captures the count of ED visits and inpatient stays or documents that screening was not completed and the reason; and coding/billing staff applying the HCPCS Level II code G9522 on the claim when the documentation meets the code definition.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when documentation supports substantially greater work than typical for services provided during the encounter associated with reporting. |