How to Bill CPT 76805 for Fetal Anatomy Ultrasound Without Denials

A CPT 76805 claim can be denied even when a fetal anatomy ultrasound was medically appropriate. Small billing errors involving gestational age, ultrasound type, diagnosis, documentation, or payer requirements can delay payment and create avoidable follow-up work.

Accurate CPT 76805 billing starts with checking the service against the code requirements and making sure the medical record supports the claim before submission. 

What is the description of CPT code 76805

The CPT code 76805 description refers to a complete obstetric ultrasound performed at 14 weeks 0 days or later through a transabdominal approach for a single fetus. It covers the fetal and maternal evaluation performed during the examination. 

CPT 76805 involves a broader fetal and maternal evaluation than an early-pregnancy scan. A standard second- or third-trimester study generally includes CPT code 76810 for each additional fetus when the additional examination is performed and documented.

When Should CPT 76805 Be Used

Use cpt code 76805 when the patient is at least 14 weeks pregnant and the provider performs a complete transabdominal obstetric ultrasound.

The report should clearly support a complete examination rather than a limited, detailed, or follow-up study. This distinction matters because several obstetric ultrasound codes can be used after the first trimester, but they do not describe the same service.

If the provider only checks one specific concern, a limited ultrasound may be more appropriate. If the patient returns after an earlier complete study for another look at fetal growth or another finding, a follow-up code may fit better.

The safest approach is to code from what the report actually describes.

Where 76805 Billing Goes Wrong

Most 76805 denials come from a few recurring mistakes. Many of the same issues also appear across other common OB/GYN claim denials, especially when coding, documentation, and payer requirements do not match.

Using the Wrong Code for Gestational Age

Gestational age is one of the first things to check. CPT 76801 is used for a complete transabdominal obstetric ultrasound before 14 weeks, while cpt 76805 starts at 14 weeks 0 days.

If the chart shows that the patient is 12 weeks pregnant but the claim contains 76805, the payer can immediately see that the code and record do not match.

Repeating 76805 for Every Later Ultrasound

A second ultrasound later in pregnancy does not automatically mean another 76805 should be billed.

For example, a patient may return several weeks after the anatomy scan so the provider can check fetal growth, amniotic fluid, fetal position, or an area that could not be fully evaluated during the earlier study. In this type of situation, CPT 76816 may better describe the follow-up examination.

The reason for the new scan and the work documented in the report should determine the code.

Confusing 76805 With 76811

CPT 76811 represents a more detailed fetal anatomic examination.

A pregnancy being labeled high risk does not automatically make 76811 appropriate. The provider must actually perform and document the level of detailed evaluation represented by that code.

The same applies in the other direction. If a detailed fetal anatomy study was performed because of a documented concern, using 76805 simply because it is the familiar anatomy-scan code may not accurately describe the service.

Missing the Additional Fetus

Multiple gestations need a little more attention during claim review.

When complete examinations are performed for twins, 76805 may be reported for the first fetus and CPT 76810 for the additional fetus. The report should clearly support the work performed for both.

Do not add an additional-fetus code just because twins are documented elsewhere in the chart. The ultrasound report needs to support the additional examination.

Diagnosis Does Not Match the Reason for the Scan

The diagnosis should explain why the ultrasound was performed.

If the report describes a specific maternal condition, fetal concern, screening purpose, or multiple gestation, the claim should reflect that reason accurately. Using the same diagnosis on every ultrasound simply because it paid before can create problems when the clinical reason changes.

CPT 76805 vs. Other OB Ultrasound Codes

Choosing the right obstetric ultrasound code becomes much easier once you identify the type of exam that was performed.

CPT Code	Typical Use	Key Difference
76801	Complete transabdominal exam before 14 weeks	First trimester
76805	Complete transabdominal exam at 14 weeks or later	Single or first fetus
76810	Complete exam for an additional fetus	Multiple gestation
76811	Detailed fetal anatomy examination	More extensive anatomic evaluation
76815	Limited obstetric ultrasound	Focused clinical question
76816	Follow-up obstetric ultrasound	Reassessment after an earlier exam

The main question is not what the appointment was called. The better question is what the provider actually examined and documented.

How to Bill CPT 76805 Correctly

Billing CPT 76805 correctly starts with confirming that the ultrasound report supports a complete transabdominal obstetric examination performed at 14 weeks 0 days or later. The code should match the service documented, not simply the appointment type or scheduling label.

Review the Report Before Submitting the Claim

First, confirm gestational age on the date of service. If the pregnancy is under 14 weeks, review CPT 76801 instead. Next, determine whether the study was complete, detailed, limited, or follow-up. A detailed fetal evaluation may support 76811, while a later growth or reassessment scan may fit 76816.

The number of fetuses must also match the report. For twins, billing may include 76805 for the first fetus and 76810 for the additional fetus when both complete examinations are documented.

The diagnosis should explain why the ultrasound was performed, such as routine antenatal screening, multiple gestation, a maternal condition, or a fetal concern.

Before submission, also verify payer requirements for authorization, frequency, diagnosis, and medical necessity. If professional and technical components are billed separately, apply the appropriate modifier, such as 26 or TC, based on who performed and billed each portion of the service.

If your team handles several maternity and ultrasound codes, keeping an OB/GYN billing cheat sheet nearby can make it easier to check common CPT codes, modifiers, and billing rules before claims are submitted.

How to Reduce CPT 76805 Denials

Most CPT 76805 problems can be caught before the claim is submitted.

Start with gestational age and then read the report to identify the type of ultrasound. Confirm the number of fetuses, make sure the diagnosis explains the scan, check authorization requirements, and review any modifiers or payer edits before submission.

One useful habit is to avoid copying the CPT code from the patient's previous ultrasound. Every scan should be coded based on what happened on that specific date of service. Coding rules also change over time. Practices preparing for upcoming updates can review the latest 2027 maternity CPT code changes before updating their OB/GYN billing workflow.

That small change can prevent a follow-up or limited study from being billed incorrectly as another complete anatomy ultrasound.

FAQ

1. What is the CPT code for an ultrasound fetal anatomy scan? 

CPT 76805 is used for a standard complete fetal anatomy ultrasound after the first trimester for a single gestation. CPT 76811 applies to a detailed anatomy scan. 

2. How many times can 76805 be billed? 

CPT 76805 frequency depends on the payer and clinical circumstances. A repeat ultrasound may be covered when medically necessary, but coverage limits and authorization requirements should be checked. 

3. Is CPT 76805 part of the global maternity package?

Under the 2026 Medicare NCCI Policy Manual, obstetric ultrasound services are not included in the total obstetric package. CPT 76805 may be separately reported when properly performed and supported.