Summary & Overview
HCPCS G8807: Trans-abdominal or Trans-vaginal Ultrasound Not Performed
HCPCS Level II code G8807 documents that a trans-abdominal or trans-vaginal ultrasound was not performed for clinician-documented reasons, such as a confirmed intrauterine pregnancy. Nationally, such codes matter for accurate encounter records, quality measurement, and payer adjudication when a planned diagnostic ultrasound is omitted for clinically justified reasons. Clear use of G8807 helps distinguish appropriate non-performance from potential underutilization or administrative denial.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of coding context, typical sites of service, and how this non-performance code fits into clinical workflows. The publication summarizes common modifiers associated with non-performed services, common use cases (for example, documented intrauterine pregnancy), and guidance on documentation expectations.
This overview also outlines which benchmarks and policy updates readers can expect to encounter, including payer coverage patterns and claims adjudication considerations relevant to ultrasound non-performance codes. The goal is to provide clinicians, coding teams, and revenue cycle stakeholders with a clear operational understanding of G8807 in national practice settings.
Billing Code Overview
HCPCS Level II code G8807 indicates that a trans-abdominal or trans-vaginal ultrasound was not performed for reasons documented by the clinician. The description notes an example circumstance: the patient has a documented intrauterine pregnancy (iup).
Service Type: Diagnostic ultrasound — not performed (clinician-documented reason)
Typical Site of Service: Outpatient imaging or outpatient obstetrics/gynecology clinic
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Clinical & Coding Specifications
Clinical Context
A patient presents to an outpatient obstetrics/gynecology clinic for early pregnancy evaluation. The clinician documents a confirmed intrauterine pregnancy on prior records or point-of-care urine/serum pregnancy test and determines that a trans-abdominal or trans-vaginal ultrasound is not clinically necessary at this visit (for example, patient has a documented, ongoing intrauterine pregnancy verified by prior imaging or reliable external documentation). The workflow: clinician reviews prior records, obtains brief history (e.g., routine prenatal visit, stable symptoms), documents the reason an ultrasound was not performed (for example, documented intrauterine pregnancy, prior recent ultrasound within acceptable interval, or patient condition preventing scan). The visit may occur in an ambulatory OB/GYN clinic, prenatal clinic, or hospital outpatient department. Billing uses G8807 to indicate the ultrasound service was not performed with clinician-documented rationale. Typical patient: a 28-year-old gravida 1 at 10 weeks gestation presenting for routine prenatal visit with prior first-trimester ultrasound showing a viable intrauterine pregnancy; no new indications for repeat sonography; clinician documents decision not to perform trans-abdominal or trans-vaginal ultrasound and codes G8807 on the claim. Typical site of service: outpatient clinic or hospital outpatient department. Service type: professional/clinic visit notation indicating imaging not performed per clinician documentation.
Coding Specifications
| Modifier | Description | When to Use |
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