Clinical review: Sina Haeri, MD, MHSA (MFM) · Coder review pending · Drafted July 2026
76810Ultrasound
CPT 76810
CPT 76810: Standard Anatomy Ultrasound, Each Additional FetusStandard Anatomy Ultrasound, Each Additional Fetus
The short answer
Use 76810 once for each fetus beyond the first on a complete standard anatomy ultrasound at 14 weeks or later. It is an add-on to 76805 and cannot be billed alone. Twins are 76805 plus one unit of 76810, with the full survey documented for each fetus.
Source: NCCISource: CMS MPFS 2026Source: AIUM
When to use 76810
Report 76810 when the standard second or third trimester survey covers a multiple gestation and the complete element set, biometry and anatomy included, is documented for every fetus. The add-on requires 76805 on the same claim from the same session. If the pregnancy is high-risk and a detailed survey was performed, the pair is 76811 plus 76812 instead; before 14 weeks it is 76801 plus 76802.
Documentation checklist
Each additional fetus needs its own complete evaluation on paper. A single shared set of measurements will not survive an audit of the add-on.
✓Complete standard survey documented separately per fetus
✓Biometry recorded for each fetus
✓Anatomic checklist addressed for each fetus, with non-visualized structures explained
✓Chorionicity and amnionicity stated
✓Amniotic fluid assessed per sac where applicable
✓Fetal number clearly stated in the impression
✓Images stored per fetus and a signed interpretation covering all fetuses
Global package rules
76810 follows its primary code: billed outside the global obstetric package and separately from 59400. It attaches only to 76805; pairing it with 76811, 76815, or 76816 fails the add-on edit because those codes have their own multiple-gestation rules. NCCI
TC-26 components
Split 76810 the same way 76805 is split on the claim. If the interpretation goes out under modifier 26, the add-on's professional component does too, and the facility mirrors the split on the technical side.
76810
Global: one entity owns equipment and interpretation
76810-26
Professional: interpretation only
76810-TC
Technical: equipment and technologist
Reimbursement
2026 · national Medicare averages
Component
Work RVU
Total RVU
2026 rate
76810Global
0.96
2.65
$88.51
76810-26Professional
0.96
1.41
$47.10
76810-TCTechnical
0.00
1.24
$41.42
National amounts under the 2026 Medicare Physician Fee Schedule (non-facility total RVU x $33.4009 conversion factor, no locality/MAC adjustment). Commercial and Medicaid rates differ. Verify current values with your MAC before billing.
Common denials
CO-B15Add-on billed without 76805
Why it happens
76810 appeared on a claim without its primary code, or the 76805 line denied and took the add-on with it.
How to fix
Rebill with 76805 on the same claim and date of service. If the primary denied, fix that denial first.
Source: NCCI
CO-50Multiple gestation not supported by diagnosis
Why it happens
The claim carried singleton diagnosis codes while billing a multiple-gestation add-on.
How to fix
Correct the ICD-10 codes to the documented multiple gestation and resubmit with matching diagnosis pointers.
Source: CMS
CO-16Unit count does not match fetal number
Why it happens
Units of 76810 exceeded or fell short of the number of additional fetuses in the report.
How to fix
Bill one unit per additional fetus. Confirm the report states the total fetal number and resubmit with corrected units.
Source: CMS
CO-4Modifier 51 on an add-on code
Why it happens
A multiple-procedure modifier was appended to a code that is exempt from the reduction.
How to fix
Remove modifier 51 and resubmit. Add-on codes price at full value without multiple-procedure logic.
Source: NCCI
FAQ
What is the CPT code description for 76810?
In plain language, 76810 covers the complete standard anatomy ultrasound evaluation of each additional fetus at 14 weeks or later. The first fetus is billed with 76805 and each extra fetus adds one unit of 76810.
Can 76810 be billed without 76805?
No. It is an add-on code and only pays when 76805 from the same session is on the claim.
What is the add-on for a detailed high-risk scan of twins?
76812. The detailed survey pairs 76811 for the first fetus with 76812 per additional fetus. 76810 belongs exclusively to the standard scan.
Does 76810 take modifier 51?
No. Add-on codes are exempt from the multiple-procedure payment reduction, and appending 51 can trigger rejections.
For twins, does each fetus need its own full documentation?
Yes. Biometry and the anatomic checklist must be recorded for each fetus individually. The add-on pays for that additional work, and auditors look for it.
Is 76810 bundled into the global OB package?
No. Like all obstetric ultrasounds it is billed separately from 59400.
CPT® is a registered trademark of the American Medical Association. Educational reference only, not billing, legal, or medical advice.
Maintained by Ouma Health, a maternal-fetal telemedicine practice. Printed from obcodingguide.com, content current as of July 2026.