CPT 93990
Global XXX ActiveDoppler flow testing
CPT 93990 Billing & Documentation Guide
CPT code 93990 (Doppler flow testing) is classified under Cardiovascular with a global period indicator of XXX. The 2026 Medicare Physician Fee Schedule assigns a work RVU of 0.49, a non-facility practice expense RVU of 3.73, and a malpractice RVU of 0.1, a total non-facility RVU of 4.32 and facility RVU of 4.32. With the current conversion factor of $33.4009, the national average non-facility reimbursement is approximately $149.58, though rates vary from $125.11 to $199.61 based on MAC locality and Geographic Practice Cost Indices (GPCIs).
When billing 93990, 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 93990 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 93990 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 93990
| Component | Non-Facility | Facility |
|---|---|---|
| Work RVU | 0.49 | 0.49 |
| Practice Expense RVU | 3.73 | 3.73 |
| Malpractice RVU | 0.1 | 0.1 |
| Total RVU | 4.32 | 4.32 |
| Conversion Factor | $33.4009 | |
2026 Medicare Reimbursement by State, CPT 93990
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 | $166.18 | $166.18 | $154.98 - $199.61 | 29 |
| Florida | $147.87 | $147.87 | $140.49 - $154.51 | 3 |
| Georgia | $139.25 | $139.25 | $131.48 - $147.01 | 2 |
| Illinois | $143.19 | $143.19 | $135.33 - $150.35 | 4 |
| Michigan | $138.05 | $138.05 | $133.88 - $142.22 | 2 |
| North Carolina | $134.74 | $134.74 | $134.74 - $134.74 | 1 |
| New York | $160.67 | $160.67 | $137.07 - $171.75 | 5 |
| Ohio | $133.48 | $133.48 | $133.48 - $133.48 | 1 |
| Pennsylvania | $142.12 | $142.12 | $133.89 - $150.34 | 2 |
| Texas | $142.21 | $142.21 | $132.84 - $151.17 | 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 93990
Procedure-to-procedure (PTP) edits. If you bill any of these codes with 93990 on the same date of service, review the modifier indicator and payer policy before submission.
| Partner Code | Relationship | Modifier Allowed | Rationale |
|---|---|---|---|
| 0689T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0690T | Column 1 (primary), can be billed with modifier | Yes | CPT Manual or CMS manual coding instruction |
| 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 |
| 76970 | Column 1 (primary), can be billed with modifier | Yes | More extensive procedure |
| 76986 | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 76998 | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 90940 | Column 1 (primary), can be billed with modifier | No | Misuse of Column Two code with Column One code |
| 93325 | Column 1 (primary), can be billed with modifier | Yes | CPT Manual or CMS manual coding instruction |
| 93925 | Column 1 (primary), can be billed with modifier | Yes | HCPCS/CPT procedure code definition |
Frequently Asked Questions, CPT 93990
What does CPT code 93990 mean? +
CPT code 93990 represents: Doppler flow testing. It's in the Cardiovascular category with a global period of XXX.
What is the Medicare reimbursement for CPT 93990? +
The 2026 Medicare national average non-facility payment for CPT 93990 is $149.58. Rates range from $125.11 to $199.61 across 53 states depending on MAC locality and GPCIs.
What modifiers can I use with CPT 93990? +
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 93990? +
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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