HCPCS Level II code B4102 identifies an enteral formula intended for adults to replace fluids and electrolytes (clear-liquid type), with billing measured in 500 ml units. This code matters nationally because enteral fluid replacement is a common supportive therapy across acute, post-acute, and long-term care settings and can affect facility supply costs, clinical nutrition protocols, and coverage determinations.

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 use of this formula, the typical service settings where B4102 is billed, and what to expect in payer coverage patterns. The publication summarizes reimbursement and billing benchmarks, common modifier usage, and administrative considerations relevant to enteral nutrition product billing.

The report is organized to help revenue cycle teams, clinical nutrition managers, and policy analysts quickly locate benchmarks, documentation expectations, and payer-specific coverage notes. Data not available in the input will be noted where applicable.