CPT code 99375 designates physician supervision of a home health agency’s plan of care when the patient is at home or in a long-term care facility, requiring the provider to spend 30 minutes or more on indirect patient care. Nationally, this code matters for documenting and billing time-intensive supervisory activities that support coordinated home-based care and long-term care oversight. Payers and policymakers monitor use of such codes to ensure appropriate payment for non-face-to-face clinical management that affects patient outcomes and resource use.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what the code represents, typical sites of service, and the service type. The publication summarizes billing context and common modifiers, notes data availability and gaps, and provides benchmarking and policy-relevant considerations for national stakeholders. The content is intended to inform coding staff, clinicians, and payers about the clinical and administrative relevance of CPT code 99375, including when it applies, typical care settings, and how it fits into broader home health supervision practices. Data not available in the input is identified where applicable.