Summary & Overview
HCPCS Level II S9122: Home Health Aide or CNA, Per Hour
Headline: HCPCS Level II code S9122 covers hourly home health aide care in the home
Lead: HCPCS Level II code S9122 represents hourly personal care delivered by a home health aide or certified nurse assistant in the patient’s home. The code is widely used across payer types to document and bill for direct in-home assistance with activities of daily living and similar personal care services.
What the code represents and why it matters: S9122 codes the provision of paid personal care by trained aides in the home. As the population ages and the preference for home-based care grows, accurate coding for aide hours affects service documentation, access to supportive care, and administrative reporting across health plans and care programs.
Key payers covered: Analysis and guidance commonly reference major national payers including Aetna, Blue Cross Blue Shield, Cigna Health, and UnitedHealthcare.
Overview of what readers will learn: This publication outlines the clinical and billing context for S9122, describes typical sites of service and use cases, and compares S9122 to related home care codes for nursing and personal care time accounting. It flags areas where billing differentiation matters for service lines and payer adjudication. Where specific reimbursement or service-line metadata is unavailable, the text will note "Data not available in the input."
Billing Code Overview
HCPCS Level II code S9122 describes home health aide or certified nurse assistant services provided in the home on an hourly basis. The service type is Home health aide/service, and the typical site of service is the home setting (POS 12). This code is used to bill for direct personal care and assistance delivered by a home health aide or certified nurse assistant during visits in the beneficiary's residence.
Clinical & Coding Specifications
Clinical Context
A homebound older adult with limited mobility and difficulty performing activities of daily living (ADLs) receives hourly home health aide support. The patient requires assistance with bathing, dressing, toileting, ambulation within the home, and routine household safety monitoring. A home health agency nurse assesses the patient, establishes a care plan, and schedules aide visits in the patients home (Place of Service 12). The home health aide or certified nurse assistant documents start and stop times for each visit, reports changes to the supervising registered nurse, and provides hands-on personal care and basic observation during each hour of service.
Coding Specifications
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HCPCS Level II code
S9122description: Home health aide or certified nurse assistant, providing care in the home; per hour. -
Common Modifiers:
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TT— Individualized service provided to more than one patient in the same setting. Use when a single aide provides individualized services to multiple patients in the same location during the billed time period. -
52— Reduced Services. Use when the service provided is partially reduced or discontinued at the physicians or supervising providers direction or when less than the full service was furnished. -
Associated provider taxonomies:
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— Home Health Agency (represents an organizational provider delivering home health services).