Summary & Overview
HCPCS G8808: Trans-abdominal or Trans-vaginal Ultrasound Not Performed
HCPCS Level II code G8808 denotes that a trans-abdominal or trans-vaginal ultrasound was not performed and no reason was provided. Nationally, this code is used to flag missing diagnostic imaging encounters that were expected in obstetric or pelvic care workflows, and it matters for billing accuracy, clinical documentation, and quality measurement.
Key payers in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise orientation to what G8808 represents, typical sites of service where the omission may be recorded, and the context in which the code appears on claims.
The publication summarizes common modifiers associated with claims where imaging is not completed, notes that associated taxonomies and ICD-10 diagnoses are not available in the input, and identifies where additional documentation or coding pathways may be present in clinical records. The report also outlines what readers can expect in related materials: national benchmarks for frequency and utilization, policy updates affecting documentation requirements, and clinical context for when an expected trans-abdominal or trans-vaginal ultrasound is omitted. Data not available in the input is explicitly called out for elements not provided.
Billing Code Overview
HCPCS Level II code G8808 indicates that a trans-abdominal or trans-vaginal ultrasound was not performed and no reason was given. This code documents the absence of an expected pelvic or obstetric ultrasound procedure when a claim or encounter would otherwise include such imaging.
Service Type: Diagnostic imaging — ultrasound not performed
Typical Site of Service: Hospital outpatient department, ambulatory surgical center, outpatient imaging center, or physician office
Clinical & Coding Specifications
Clinical Context
A patient of reproductive age presents to an outpatient gynecology clinic for pelvic pain and irregular vaginal bleeding. The clinician orders a trans-abdominal or trans-vaginal pelvic ultrasound to evaluate for ovarian cysts, uterine fibroids, adnexal mass, or early pregnancy. At imaging check-in the patient reports acute nausea and vomits, is unable to tolerate the exam, and declines further imaging; alternatively, the sonographer discovers a mechanical failure of the ultrasound machine that prevents completion of the study before any images are obtained. In either scenario the facility documents that a planned trans-abdominal or trans-vaginal ultrasound was not performed and no images were acquired. Billing uses HCPCS Level II code G8808 to indicate the ultrasound was not performed and the specific reason for non-performance was not provided in the claim. Typical site of service is an outpatient imaging center, hospital outpatient department, or ambulatory surgical center when the exam is scheduled as a diagnostic pelvic ultrasound. Common workflow elements include order entry by the clinician, scheduling, patient arrival and pre-scan assessment, attempted scanning by a sonographer, documentation of non-performance and reason in the medical record, and submission of the claim with G8808 when the reason is not specified on the claim form.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 |