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Medical supply billing for ostomy, urology, wound and diabetic supplies
Billing for recurring supply orders: quantity limits, refill documentation, HCPCS A-codes and more.

How medical supply billing works
Supplies are billed with HCPCS Level II codes, mostly A-codes, in quantities tied to each payer’s usual monthly limits. Medicare requires the supplier to confirm each refill with the beneficiary or caregiver no sooner than 14 calendar days before delivery, to ship no sooner than 10 days before the current supply runs out, and to support any quantity above the usual maximum in the medical record.14 days before the end of the current supply, and that quantities above the usual maximum are supported in the medical record.
Codes we bill every day
| Code | What it covers |
|---|---|
| A4253 | Blood glucose test strips, per 50 |
| A4259 | Lancets, per 100 |
| A4351 / A4352 | Intermittent urinary catheters |
| A4405 / A4416 | Ostomy supplies (examples) |
| A6212 / A6234 | Wound dressings (examples) |
Code descriptions are summarized. Payer coverage and documentation rules vary by plan and state.
Denials we prevent
- Quantities above the usual maximum without documentation
- Refills shipped too early
- No current order or expired order
- Supplies billed for the same period twice
- Supplies not covered under the patient’s plan
Questions about medical supply billing
Do you manage recurring refill billing?
Yes. We track refill dates, quantities and order expirations for recurring patients.
Get a free medical supply billing audit
Send a few details and we will set up a short call to review your claims, denials and A/R. No cost and no commitment.
We sign a Business Associate Agreement before we handle any patient data.







