Summary & Overview
HCPCS S5565: Insulin Cartridge, 150 Units
HCPCS Level II code S5565 identifies a 150-unit insulin cartridge intended for use in insulin delivery devices other than pumps. This supply-oriented code matters nationally as insulin delivery devices and their disposable cartridges are central to outpatient diabetes management and drug supply chains. Accurate coding for cartridges affects claims processing, beneficiary access to supplies, and supply cost tracking across payers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise briefing on clinical context for cartridge-based insulin delivery, common sites of service where S5565 is billed, and operational considerations relevant to payers and billing staff. The publication summarizes typical reimbursement benchmarks, billing practice notes, and recent policy clarifications that affect coverage and claim adjudication for non-pump insulin cartridges.
This resource provides practical reference material for billing professionals and revenue cycle staff: definitions and service context for S5565, payer coverage considerations, and where to find more detailed policy guidance. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code S5565 describes an insulin cartridge for use in an insulin delivery device other than a pump; 150 units. The item is a prefilled cartridge intended for use with compatible pen-style or reusable insulin delivery devices rather than continuous subcutaneous insulin infusion pumps.
Service type: Durable medical supply / drug administration supply
Typical site of service: Outpatient settings, ambulatory care, clinics, and home use
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with insulin-dependent diabetes mellitus who uses a reusable insulin delivery device (non-pump) such as a durable insulin pen or compatible cartridge-based injector. The patient presents to an outpatient clinic, durable medical equipment supplier, or retail pharmacy for a scheduled supply replacement. A clinician (endocrinologist, primary care provider, or certified diabetes educator) documents the need for a replacement insulin cartridge containing 150 units due to routine therapy continuation, cartridge expiration, dose change, or supply exhaustion. The workflow includes verification of the patient’s active diabetes diagnosis, confirmation of the prescribed insulin formulation and concentration, documentation of quantity dispensed (one or more S5565 units as appropriate), and issuance of patient counseling on proper cartridge installation and disposal. Billing is submitted using S5565 for the insulin cartridge; any required prior authorization, medical necessity documentation, and applicable modifier(s) are appended per payer policy. Typical sites of service include outpatient clinic offices, retail pharmacy, and durable medical equipment suppliers.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier information | Use when no specific modifier is applicable and payer requires submission of a default/neutral modifier. |