HCPCS Level II code A4520 designates an individual incontinence garment (for example, a brief or diaper). This code is used to bill for supplies supplied to manage urinary or fecal incontinence across home health, long-term care, outpatient supply pharmacies, and patient residences. It matters nationally because incontinence supplies are a frequent, recurring expense for patients with chronic conditions, post-acute needs, and long-term care populations, and consistent coding affects coverage, access, and cost management.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for A4520, typical sites of service, and the types of scenarios where the code is applied. The publication also summarizes common billing considerations, benchmarking points for utilization and unit reporting, and recent policy or coverage trends where available. Specific payer coverage details, modifier usage, and associated taxonomies or diagnosis mappings are included in dedicated sections when data is available.

Data not available in the input for specific ICD-10 pairings, payer-specific fee schedules, and utilization benchmarks is noted where applicable.