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Syringe with needle for external insulin pump, sterile, 3 cc

HCPCS code

Syringe with Needle for External Insulin Pump, Sterile, 3 cc (A4232)

Name of the Procedure:

  • Common Name(s): Insulin Pump Syringe Replacement
  • Technical/Medical Term: Subcutaneous Insulin Delivery via Syringe with Needle for External Insulin Pump


This procedure involves using a sterile syringe with a needle to fill an insulin pump with insulin. It is a routine task for individuals who manage their diabetes with an external insulin pump, ensuring the device can continue to deliver the appropriate amount of insulin to maintain blood sugar levels.


  • Addresses: Diabetes Mellitus (Type 1 and Type 2)
  • Goals/Outcomes: To deliver a consistent and precise dose of insulin, maintaining optimal blood sugar levels and reducing the risks of hyperglycemia and hypoglycemia.


  • Specific Symptoms or Conditions: Uncontrolled blood sugar levels, requirement for continuous insulin delivery.
  • Patient Criteria: Patients with diabetes who use an external insulin pump.


  • Instructions: Ensure hands are clean before handling the syringe and insulin pump. Gather necessary supplies (syringe, insulin, alcohol wipes).
  • Diagnostic Tests: Regular blood sugar monitoring to ensure correct insulin dosage.

Procedure Description

  1. Preparation: Clean injection site and vial top with alcohol wipes.
  2. Loading the Syringe: Draw the prescribed amount of insulin into the 3 cc syringe.
  3. Filling the Pump: Attach the syringe to the insulin pump reservoir and carefully transfer the insulin.
  4. Completion: Securely seal the insulin pump reservoir and prime the system to avoid air bubbles.
  • Tools/Equipment: Sterile 3 cc syringe with needle, external insulin pump, alcohol wipes, insulin vial.
  • Anesthesia/Sedation: Not applicable.


  • Typical Time: 5-10 minutes


  • Performed At: Home setting, outpatient clinic, or doctor’s office.


  • Involved Professionals: Primarily the patient or caregiver; a nurse or diabetes educator may assist initially for instructional purposes.

Risks and Complications

  • Common Risks: Mild discomfort, air bubbles in the insulin reservoir, potential for dosing errors.
  • Rare Risks: Infection at the injection site, allergic reaction to materials.


  • Expected Benefits: Improved blood sugar control, greater flexibility and freedom for the patient, reduced need for multiple daily injections.
  • Realization Time: Immediate blood glucose management improvements.


  • Post-Procedure Care: Monitor blood sugar levels regularly, follow a consistent insulin dosing schedule.
  • Expected Recovery Time: No recovery time needed; patients can resume normal activities immediately.
  • Restrictions/Follow-Up: Regular follow-up appointments with a healthcare provider for diabetes management.


  • Other Treatment Options: Multiple daily insulin injections, oral antidiabetic medications, continuous subcutaneous insulin infusion (CSII) with different devices.
  • Pros and Cons:
    • Pros: Flexible and precise insulin management.
    • Cons: Requirement to maintain and monitor the pump, potential for technical issues.

Patient Experience

  • During the Procedure: Minimal discomfort when handling the syringe and filling the pump.
  • After the Procedure: Potential for slight soreness at the injection site; otherwise, normal activities can be resumed.
  • Pain Management: Usually unnecessary; over-the-counter pain relievers can be used if needed.

This procedure forms a crucial part of diabetes management for those using an external insulin pump, providing a means to maintain continuous and effective blood glucose control.

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