CPT 99478
Global XXX ActiveSbsq ic vlbw inf<1,500 gm
CPT 99478 Billing & Documentation Guide
CPT code 99478 (Sbsq ic vlbw inf<1,500 gm) is classified under E/M with a global period indicator of XXX. The 2026 Medicare Physician Fee Schedule assigns a work RVU of 2.75, a non-facility practice expense RVU of 0.55, and a malpractice RVU of 0.17, a total non-facility RVU of 3.47 and facility RVU of 3.47. With the current conversion factor of $33.4009, the national average non-facility reimbursement is approximately $117.76, though rates vary from $110.56 to $160.47 based on MAC locality and Geographic Practice Cost Indices (GPCIs).
When billing 99478, 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 99478 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 1 units of 99478 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 99478
| Component | Non-Facility | Facility |
|---|---|---|
| Work RVU | 2.75 | 2.75 |
| Practice Expense RVU | 0.55 | 0.55 |
| Malpractice RVU | 0.17 | 0.17 |
| Total RVU | 3.47 | 3.47 |
| Conversion Factor | $33.4009 | |
2026 Medicare Reimbursement by State, CPT 99478
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 | $119.96 | $119.96 | $116.59 - $131.49 | 29 |
| Florida | $121.34 | $121.34 | $117.95 - $125.34 | 3 |
| Georgia | $116.31 | $116.31 | $115.01 - $117.61 | 2 |
| Illinois | $120.78 | $120.78 | $117.5 - $123.99 | 4 |
| Michigan | $117.1 | $117.1 | $115.04 - $119.15 | 2 |
| North Carolina | $112.62 | $112.62 | $112.62 - $112.62 | 1 |
| New York | $124.42 | $124.42 | $113.3 - $130.12 | 5 |
| Ohio | $114.35 | $114.35 | $114.35 - $114.35 | 1 |
| Pennsylvania | $116.74 | $116.74 | $114.08 - $119.4 | 2 |
| Texas | $115.72 | $115.72 | $113.84 - $118.64 | 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 99478
Procedure-to-procedure (PTP) edits. If you bill any of these codes with 99478 on the same date of service, review the modifier indicator and payer policy before submission.
| Partner Code | Relationship | Modifier Allowed | Rationale |
|---|---|---|---|
| 0188T | Column 1 (primary), can be billed with modifier | No | Misuse of Column Two code with Column One code |
| 0189T | Column 1 (primary), can be billed with modifier | No | Misuse of Column Two code with Column One code |
| 0359T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0360T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0361T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0362T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0362T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0363T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0364T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
| 0365T | Column 1 (primary), can be billed with modifier | Yes | Misuse of Column Two code with Column One code |
Frequently Asked Questions, CPT 99478
What does CPT code 99478 mean? +
CPT code 99478 represents: Sbsq ic vlbw inf<1,500 gm. It's in the E/M category with a global period of XXX.
What is the Medicare reimbursement for CPT 99478? +
The 2026 Medicare national average non-facility payment for CPT 99478 is $117.76. Rates range from $110.56 to $160.47 across 53 states depending on MAC locality and GPCIs.
What modifiers can I use with CPT 99478? +
E/M codes commonly use modifier 25 (significant separately identifiable E/M on same day as a procedure), 57 (decision for major surgery), 24 (unrelated E/M during global period), 95 (synchronous audio+video telehealth), 93 (audio-only telehealth), and AI (principal physician of record on admission). Surgical modifiers like 50, 51, 59 do not apply to E/M.
What bundling edits apply to CPT 99478? +
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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