CPT 96521
Global XXX ActiveRefill/maint portable pump
CPT 96521 Billing & Documentation Guide
CPT code 96521 (Refill/maint portable pump) is classified under Infusion/Chemotherapy with a global period indicator of XXX. The 2026 Medicare Physician Fee Schedule assigns a work RVU of 0.21, a non-facility practice expense RVU of 4.02, and a malpractice RVU of 0.07, a total non-facility RVU of 4.3 and facility RVU of 4.3. With the current conversion factor of $33.4009, the national average non-facility reimbursement is approximately $149.29, though rates vary from $123.56 to $202.66 based on MAC locality and Geographic Practice Cost Indices (GPCIs).
When billing 96521, ensure documentation supports medical necessity and the specific components required for the code's level of service. For E/M codes, document MDM (medical decision-making) elements: problems addressed, data reviewed, and risk. For procedural codes, document the indication, technique, and any complications. Always verify NCCI edits before bundling 96521 with related codes; this code has 10 PTP bundling relationships on file (see table below).
Payment Status & Global Period
Active code (paid under MPFS)
No global period (E/M and other non-procedural services)
MUE Limit (Medically Unlikely Edits)
Submitting more than 2 units of 96521 for the same patient on the same date triggers automatic line denial unless an appropriate modifier and supporting documentation justify the higher quantity.
RVU Breakdown, CPT 96521
| Component | Non-Facility | Facility |
|---|---|---|
| Work RVU | 0.21 | 0.21 |
| Practice Expense RVU | 4.02 | 4.02 |
| Malpractice RVU | 0.07 | 0.07 |
| Total RVU | 4.3 | 4.3 |
| Conversion Factor | $33.4009 | |
2026 Medicare Reimbursement by State, CPT 96521
State-level averages across all MAC localities. Non-facility rates typically apply to office-based services; facility rates apply to hospital outpatient / inpatient.
| State | Non-Facility | Facility | Range (Non-Fac) | Localities |
|---|---|---|---|---|
| California | $167.41 | $167.41 | $155.55 - $202.66 | 29 |
| Florida | $146.28 | $146.28 | $138.89 - $152.7 | 3 |
| Georgia | $137.92 | $137.92 | $129.57 - $146.26 | 2 |
| Illinois | $141.25 | $141.25 | $133.26 - $149.1 | 4 |
| Michigan | $136.39 | $136.39 | $132.24 - $140.53 | 2 |
| North Carolina | $133.78 | $133.78 | $133.78 - $133.78 | 1 |
| New York | $160.32 | $160.32 | $136.22 - $171.45 | 5 |
| Ohio | $131.96 | $131.96 | $131.96 - $131.96 | 1 |
| Pennsylvania | $141.1 | $141.1 | $132.49 - $149.71 | 2 |
| Texas | $141.42 | $141.42 | $131.37 - $151.16 | 8 |
Source: CMS PFSRVU 2026 · Updated 2026-04-01. Full locality-level detail available for all 53 states, contact us for custom reports.
NCCI Bundling Edits, CPT 96521
Procedure-to-procedure (PTP) edits. If you bill any of these codes with 96521 on the same date of service, review the modifier indicator and payer policy before submission.
| Partner Code | Relationship | Modifier Allowed | Rationale |
|---|---|---|---|
| 36591 | Column 1 (primary), can be billed with modifier | No | CPT Manual or CMS manual coding instruction |
| 36592 | Column 1 (primary), can be billed with modifier | No | CPT Manual or CMS manual coding instruction |
| 77401 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
| 77402 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
| 77403 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
| 77404 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
| 77406 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
| 77407 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
| 77408 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
| 77409 | Column 1 (primary), can be billed with modifier | Yes | Standards of medical/surgical practice |
Frequently Asked Questions, CPT 96521
What does CPT code 96521 mean? +
CPT code 96521 represents: Refill/maint portable pump. It's in the Infusion/Chemotherapy category with a global period of XXX.
What is the Medicare reimbursement for CPT 96521? +
The 2026 Medicare national average non-facility payment for CPT 96521 is $149.29. Rates range from $123.56 to $202.66 across 53 states depending on MAC locality and GPCIs.
What modifiers can I use with CPT 96521? +
Medicine section spans a wide range: therapy services use GP/GO/GN (PT/OT/SLP plans of care) and KX (above cap with documentation). Drug administration uses JW (waste) and JZ (no waste). Professional/technical split applies to some diagnostic codes.
What bundling edits apply to CPT 96521? +
This code has 10 NCCI PTP bundling relationships. See the NCCI Bundling section below for full list.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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