Q2004 HCPCS code: Irrigation solution for treatment of bladder calculi, for example renacidin, per 500 ml
Q2004 is the HCPCS Level II code for irrigation solution for treatment of bladder calculi, for example renacidin, per 500 ml. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. The NCCI unit limit is 1 per day on outpatient hospital claims.
Code details
| Field | Value |
|---|---|
| Section | Q codes — Temporary codes |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 51 — Drug or biological (priced per ASP/average sales price rules) |
| BETOS category | O1E — Other drugs |
| Added | 2000-07-01 |
| Last action effective | 2024-01-01 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 1 | Prescribing Information |
| practitioner claims | 1 | Prescribing Information |
What changed for Q2004
- 2000-07-01: Q2004 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code Q2004?
Q2004 is the HCPCS Level II code for irrigation solution for treatment of bladder calculi, for example renacidin, per 500 ml. Short descriptor: "Bladder calculi irrig sol".
Does Medicare cover Q2004?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
How many units of Q2004 can be billed per day?
1 on outpatient hospital claims; 1 on practitioner claims (NCCI medically unlikely edits).
Related Q20 codes
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Next steps
- Run a reimbursement report for a device billed under Q2004
- Watch Q2004 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for Q2004
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.