A4708 Acetate Dialysate Concentrate HCPCS Reimbursement | OpenPayer

Summary & Overview

HCPCS A4708: Acetate Dialysate Concentrate, Per Gallon

HCPCS Level II code A4708 denotes an acetate concentrate solution supplied per gallon for use in hemodialysis. This supply code matters nationally because dialysis concentrates are essential consumables for maintenance hemodialysis and acute renal replacement therapy, and correct coding affects billing, coverage determinations, and supply-chain accounting across dialysis providers. Key payers considered in the national context include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the product and clinical use, typical sites of service where the concentrate is administered, and the payer landscape addressed in the publication. The report provides benchmarks and coverage considerations relevant to supply coding, outlines common billing practices tied to dialysis consumables, and highlights policy updates affecting coverage and billing of dialysis supplies. It also situates A4708 within the broader dialysis service line to clarify how concentrate supply codes interact with facility services and dialysis procedure billing. Data not available in the input is explicitly noted where applicable.

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Billing Code Overview

HCPCS Level II code A4708 describes acetate concentrate solution, for hemodialysis, per gallon. This product is a liquid dialysis concentrate used to prepare dialysis fluid (dialysate) by mixing with water and other components in dialysis clinics and hospital dialysis units. The service type is supply of dialysis solution concentrate for extracorporeal hemodialysis treatment. The typical site of service is outpatient dialysis centers, hospital hemodialysis units, and other facilities providing maintenance hemodialysis therapy.

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A patient with end-stage renal disease (ESRD) arrives for a scheduled outpatient hemodialysis treatment at a dialysis center. The facility uses dialysate prepared from commercial concentrates; A4708 (acetate concentrate solution, for hemodialysis, per gallon) is used to mix the dialysate delivered to the dialysis machine. Typical workflow: intake and assessment by dialysis nursing staff; verification of prescription orders from the nephrologist for dialysis modality, blood flow, dialysis duration, and dialysate composition; checking and preparing dialysis machine and water treatment system; measuring and adding the prescribed volume of A4708 concentrate into the proportioning system or chemical feed; priming and testing dialysate conductivity and temperature; initiating hemodialysis for the patient; ongoing monitoring during treatment; and post-treatment documentation and disposal of unused solutions according to facility protocols. Typical site of service is an outpatient dialysis center or hospital-based dialysis unit. Typical patient scenario: a recurring thrice-weekly in-center hemodialysis patient with ESRD requiring acetate-based dialysate concentrate for bicarbonate management or for facilities that stock acetate formulations due to local formulary or supply considerations.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier

HCPCS A4719: Peritoneal Dialysis "Y Set" Tubing

HCPCS-A6255-SPECIALTY-ABSORPTIVE-WOUND-DRESSING-16-48-SQ-IN

HCPCS A6255: Specialty Absorptive Wound Dressing, 16–48 sq. in.

HCPCS-A7044-ORAL-INTERFACE-POSITIVE-AIRWAY-PRESSURE-DEVICE

HCPCS A7044: Oral Interface for Positive Airway Pressure Device, Each

HCPCS-A4630-REPLACEMENT-BATTERIES-TRANSCUTANEOUS-ELECTRICAL-STIMULATOR

HCPCS A4630: Replacement Batteries for Transcutaneous Electrical Stimulator

HCPCS-A7029-NASAL-PILLOWS-COMBINATION-ORAL-NASAL-MASK-REPLACEMENT-PAIR

HCPCS A7029: Nasal Pillows for Combination Oral/Nasal Mask, Replacement Pair

HCPCS-A6244-HYDROGEL-WOUND-DRESSING-LARGE-PAD-NO-ADHESIVE-BORDER

HCPCS A6244: Hydrogel Wound Dressing, Large Sterile Pad

HCPCS-A6519-GRADIENT-COMPRESSION-GARMENT-NIGHTTIME

HCPCS Level II A6519: Gradient Compression Garment, Nighttime Use

HCPCS-A4416-CLOSED-OSTOMY-POUCH-WITH-FILTER

HCPCS A4416: Closed Ostomy Pouch with Barrier and Filter

HCPCS-A7521-TRACHEOSTOMY-LARYNGECTOMY-TUBE-CUFFED-PVC-SILICONE

HCPCS Level II A7521: Cuffed Tracheostomy/Laryngectomy Tube

HCPCS-A4301-IMPLANTABLE-ACCESS-PORT-RESERVOIR-CATHETER

HCPCS A4301: Implantable Access Catheter with Port/Reservoir

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Taxonomy Code	Specialty	Notes
`282N00000X`	Nephrology	Physicians who prescribe dialysis prescriptions and oversee dialysis care.
`335800000X`	Dialysis Facility	Institutional taxonomy for outpatient dialysis centers supplying concentrates.
`1744C0002X`	Registered Nurse	Dialysis nurses who prepare and administer dialysate solutions.
`331K00000X`	Clinical Laboratory	Laboratories involved in water quality testing and dialysate validation.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`N18.6`	End stage renal disease	Primary indication for chronic hemodialysis using dialysate prepared with `A4708` concentrate.
`N18.5`	Chronic kidney disease, stage 5	Patients approaching or requiring renal replacement therapy and dialysate use.
`I12.9`	Hypertensive chronic kidney disease without heart failure	Common comorbidity in dialysis patients receiving dialysate therapy.
`E10.22`	Type 1 diabetes mellitus with diabetic chronic kidney disease	Diabetes-related CKD leading to hemodialysis and need for dialysate concentrates.
`E11.22`	Type 2 diabetes mellitus with diabetic chronic kidney disease	Another common cause of ESRD requiring hemodialysis with `A4708`.
`T82.7XXA`	Infection and inflammatory reaction due to other implanted vascular device, initial encounter	Vascular access complications that may interrupt dialysis sessions and affect dialysate usage.
`Z99.2`	Dependence on renal dialysis	Status code commonly reported for patients receiving ongoing dialysis treatments using `A4708`-based solutions.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`90935`	Hemodialysis procedure with single evaluation by a physician; for patients in an outpatient setting, one evaluation per dialysis session.	Performed alongside use of dialysate prepared with `A4708`; documents the dialysis procedure and physician evaluation.
`90937`	Hemodialysis procedure with repeated evaluation(s) by a physician; for patients requiring more intensive physician involvement.	Used when additional physician evaluations occur during or around dialysis treatments using `A4708`-based dialysate.
`90945`	Dialysis procedure other than hemodialysis, for home dialysis training and periodic evaluation (peritoneal or hemodialysis) - training.	May be used when training staff/patient on home hemodialysis equipment that uses similar concentrate handling principles.
`90947`	Hemodialysis procedure, for home dialysis performed by patient with periodic professional evaluation.	Relevant when billing professional services for home hemodialysis where `A4708` may be supplied for home use.
`99211`	Office or other outpatient visit, established patient, low complexity.	May be used for routine nursing assessment or brief clinician evaluation related to hemodialysis sessions that utilize `A4708` dialysate.

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