Pelvic examination
CPT 99459 is used when a physician attends the delivery of twins or triplets after the first baby is born, providing medical care and management for each additional infant delivered.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Bill 99459 for each infant after the first using units (e.g., 2 units for triplets) or multiple line items depending on payer requirements
Impact: Captures full reimbursement of $20.70 per additional infant; missing units results in $20.70-$62.10+ lost revenue per delivery
Always pair with primary delivery code (59400, 59510, 59610, 59612, 59614, 59618, or 59620) - never bill 99459 alone
Impact: Stand-alone billing results in automatic denial; proper pairing ensures $20.70 per additional infant is paid
Document time of delivery for each infant separately and the physician's presence and active management for each delivery
Impact: Prevents medical necessity denials; clear documentation supports audit defense and maintains $20.70 payment per infant
Verify number of live births vs. total infants delivered; only bill 99459 for live infants where delivery attendance was provided
Impact: Billing for stillborn infant deliveries may result in recoupment; accurate reporting prevents overpayment liability
Check payer-specific policies on unit limits for 99459; some Medicaid programs have different reimbursement methodologies for multiple births
Impact: Commercial payers may pay 100-200% of Medicare rate ($20.70-$41.40+); Medicaid rates vary by state from $15-$35 per infant
Do not bill 99459 if a different physician delivered subsequent infants; only the delivering physician reports this code
Impact: Duplicate billing triggers fraud edits and potential audit; ensures proper attribution and prevents $20.70 overpayment per infant
Common denials
Billed without primary delivery code or with non-delivery E&M code
How to appeal: Submit corrected claim with appropriate delivery code (59xxx series) as primary procedure. Include delivery summary showing multiple infants delivered by same physician. Reference CPT guidelines stating 99459 is add-on to delivery services.
Medical necessity denial - payer questions whether additional attendance was required
How to appeal: Provide complete delivery record documenting separate delivery times for each infant, physician presence, and active management of each birth. Include operative note describing physician's role in each delivery and any complications encountered.
Units denied - payer allows only one unit regardless of number of additional infants
How to appeal: Submit birth certificates or delivery summary confirming number of live births. Reference CPT descriptor allowing per-infant billing. Cite payer policy or Medicare guidelines supporting multiple units for triplets or higher order multiples.
Denial for duplicate billing when different provider number submits same code
How to appeal: Clarify with documentation that only one physician is billing for delivery services. If different physicians delivered different infants (rare), provide detailed timeline and separate delivery notes proving distinct services. May require modifier to indicate separate provider.
Frequently asked questions
How much does Medicare pay for CPT code 99459 in 2025?
Medicare pays $20.70 for CPT 99459 in 2025 under both facility and non-facility settings. This rate applies nationally on average, with local adjustments based on geographic practice cost indices (GPCI). The code has a total RVU of 0.64.
Can you bill 99459 for twin deliveries?
Yes, bill 99459 once for twin deliveries to represent attendance at delivery of the second twin. For triplets, bill 99459 twice (2 units); for quadruplets, bill 99459 three times (3 units). The code is used for each infant beyond the first.
What is the primary code to use with 99459?
CPT 99459 must be billed with a primary delivery code from the 59xxx series, such as 59400 (vaginal delivery), 59510 (cesarean delivery), 59610 (VBAC), 59612 (VBAC with postpartum care), 59614 (cesarean after attempted VBAC), 59618 (cesarean with postpartum care), or 59620 (cesarean after attempted VBAC with postpartum care).
Is CPT 99459 an add-on code?
Yes, CPT 99459 is an add-on code and cannot be billed independently. It must always be reported with a primary delivery service code. As an add-on code, it is exempt from modifier 51 (multiple procedures) and should not have payment reductions applied.
Who can bill CPT code 99459?
Only the physician or qualified healthcare professional who personally attended and managed the delivery of the additional infants can bill 99459. This is typically an obstetrician, maternal-fetal medicine specialist, or family medicine physician with obstetric privileges who performed or directly supervised the delivery.
What documentation is needed to support billing 99459?
Documentation must include the total number of infants delivered, individual delivery times for each infant, evidence of physician presence and active management for each subsequent birth, presentation/position of each infant, any complications or maneuvers performed, and the condition of each infant post-delivery. The delivery note should clearly support attendance at multiple births.
How many times can you bill 99459 for triplets?
For triplets, bill 99459 twice (2 units) representing attendance at delivery of the second and third infants. The primary delivery code covers the first infant, and each additional infant is represented by one unit of 99459. This generates $41.40 in additional Medicare reimbursement for triplets.