Summary & Overview
HCPCS A4770: Blood Collection Tubes for Dialysis, Vacuum (per 50)
HCPCS Level II code A4770 designates a pack of vacuum blood collection tubes intended for dialysis-related specimen collection. As a supply-specific HCPCS code, A4770 is used by outpatient dialysis centers and related ambulatory settings to bill for bulk vacuum tubes supplied for routine and monitoring blood draws during dialysis care. Nationally, standardized supply codes like A4770 matter because they enable clearer billing for consumables in renal care and facilitate supply-cost tracking across payers.
Key payers commonly included in coverage and benchmarking for this code are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the code’s clinical context, typical site-of-service use, and the types of benchmarks and policy elements that usually accompany HCPCS supply codes. This publication outlines what A4770 represents, how it is applied in dialysis settings, and what to expect in payer coverage and billing practice discussions. It also identifies where input data was not provided and notes items that require payer- or facility-specific confirmation.
Billing Code Overview
HCPCS Level II code A4770 describes a blood collection tube, vacuum, for dialysis, per 50. This supply-level code denotes kits of vacuum blood collection tubes specifically intended for use in dialysis-related blood draws and specimen collection.
Service type: Dialysis blood collection supplies
Typical site of service: Dialysis clinic or outpatient dialysis unit
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult receiving maintenance hemodialysis at an outpatient dialysis center who requires routine monthly laboratory monitoring of dialysis adequacy, access function, and metabolic panels. During treatment, a dialysis-trained phlebotomy technician or dialysis nurse uses vacuum blood collection tubes specifically packaged for dialysis sampling to draw multiple specimens through the dialysis circuit or from the patient’s vascular access. The collected tubes are labeled, stored in a transport bag, and sent with the specimen courier to the laboratory for tests such as serum chemistries, complete blood count, hepatitis serologies, or blood cultures when indicated. The product described by A4770 is supplied in increments of 50 tubes and billed by the dialysis facility when provided to collect blood specimens during dialysis sessions. Typical site of service is an outpatient dialysis center or hospital-based dialysis unit. The patient scenario often includes end-stage renal disease on hemodialysis (chronic) undergoing routine monitoring, evaluation of symptoms such as hypotension or fever during treatment requiring additional blood work, or post-access surveillance sampling for suspected access dysfunction or infection.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Standard use when no special modifier applies |