Mar 2026: Your Guide to Coding for Fertility-Related Ultrasound Procedures

Demystifying Ultrasound Billing for Fertility Care

If you’re practicing in fertility medicine, you know ultrasound plays a key role in both diagnosis and management,  and it pops up on the billing sheet as often as it does in the exam room. Coding for fertility-related ultrasound procedures can be confusing, and that’s why we’re tackling this hot topic. Ultrasound isn’t just a cornerstone of reproductive endocrinology and infertility (REI) care - it’s also one of the most frequent question topics we the ASRM coding committee answer through the Coding Corner. To demystify the process and help ensure you’re coding (and being reimbursed) correctly, this post walks through the essentials of ultrasound billing for fertility specialists. Let’s break down the most used codes and highlight the practical steps to keep your practice compliant and your billing on track.
 

Good Documentation Is Key

Before diving into the codes, let’s highlight something critical: every gynecologic ultrasound needs a full written report. This isn’t just a formality - it’s about documenting what was done, why it was needed, your findings, conclusions, and your signature. Key images and written reports should be stored permanently as part of the medical record, too. Always keep in mind that if you use ultrasound but don’t document or report it, you can’t bill for it. Every imaging study also needs an accompanying diagnosis.

Most Common Ultrasound CPT Codes

• 76830: Ultrasound, transvaginal
• 76856: Ultrasound, pelvic (non-obstetric); complete (abdominal)
• 76857: Ultrasound, pelvic (non-obstetric); limited or follow-up (transvaginal or abdominal)
• 76831: Ultrasound with saline, with or without color flow Doppler
• 76815: Ultrasound of pregnant uterus, limited
• 76817: Ultrasound of pregnant uterus, transvaginal
• 76801: Ultrasound of pregnant uterus, first trimester, complete, transabdominal
• 76948: Ultrasound guidance for ovum aspiration
• 76705: Ultrasound guidance for embryo transfer

When to Use Which Code?

Standard Pelvic Ultrasound

For initial infertility evaluation or for evaluating suspected pelvic pathology, a comprehensive pelvic ultrasound is your go-to study. Approach can be abdominal or transvaginal. Use CPT code 76830 for the transvaginal route (think first diagnostics or “baseline” ultrasounds at cycle start), and 76856 for abdominal.

Sometimes, you’ll start abdominal and switch to transvaginal for more detail. In these cases, bill both procedures: 76830 (transvaginal) and 76856 (abdominal), but attach a -51 (multiple procedures) modifier to the second code and file separate reports for each. This shows why both were necessary.

Follow-Up or Limited Exams (aka Follicle Scans)

For follow-ups, like follicle scans, use CPT code 76857 regardless of whether you go transvaginal or abdominal. This code is for focused exams (think: follicle count, follicle size and endometrial thickness). You don’t need a modifier - just document the relevant details.

ICD-10 Diagnostic Codes

The diagnostic code you use for patients undergoing a fertility treatment may include N97.9 (female infertility) or Z31.83 (encounter for assisted reproductive fertility procedure cycle) or Z31.84 (encounter for fertility preservation procedure). For the basic infertility evaluation, you can use Z31.41 (fertility testing). Always use the most specific diagnostic code possible. It’s alright to use a non-fertility related code if appropriate. For instance, R10.2 (pelvic pain in female) may be indicated in certain circumstances.

ICD-10 for Cyst Follow-Ups

If you’re scanning to check on an ovarian cyst, use codes like N83.201 (right ovarian cyst), N83.202 (left), N83.209 (unspecified), or N83.29 (other). It is acceptable to use the same code for the initial and return scan - even if the cyst has resolved.

Adding 3D Ultrasound

If you provide 3D rendering, bill the 3D code in addition to the basic ultrasound:

• 76376: 3D rendering (no independent workstation needed)
• 76377: 3D rendering (requires an independent workstation)

Saline Ultrasound & Color Doppler Flow

Evaluating the uterine cavity and checking tubal patency are vital steps in infertility workups. Here’s how to code:

• Saline Infusion Sonohysterogram: Bill 58340 for catheter placement for saline infusion and 76831 for the ultrasound itself. If assessing tubal patency sonographically (“HyCoSy”), use the same two codes.
• Category III: New code 0568T bundles sonohysterography procedures—you can use it instead of 58340 + 76831, but not all payers recognize it yet.
• You can also add 3D ultrasound rending codes if you perform 3D rendering (76376 and 76377 as above).

No matter the code, document thoroughly!

Early Pregnancy Imaging

If is the ultrasound purpose is to confirm pregnancy or fetal viability, go with CPT 76815 (limited) or 76817 (transvaginal). You can still use these codes even if the pregnancy is unfortunately nonviable.

Handy ICD-10 codes for these scenarios include:

• O09.01: Pregnancy with a history of infertility
• O09.11: Pregnancy with a history of ectopic pregnancy, first trimester
• O26.851: Spotting complicating pregnancy, first trimester

Procedure-Associated Sonography

• 76948: Ultrasound guidance for oocyte aspiration
• 76705: Ultrasound guidance for embryo transfer
• For transvaginal ovarian cyst aspiration, use 58800 (drainage via vaginal approach). Add 76998 for ultrasound guidance.
• ICD-10 codes for ovarian cysts: N83.20X (“unspecified ovarian cyst”)—final digit “1” for right, “2” for left.
• 49083: Abdominal paracentesis with ultrasound guidance.

Staying up to date with ultrasound coding and documentation ensures not only compliance, but also that your practice gets paid accurately for your expertise. 

Bookmark this post for your next billing session if you find it helpful! If you have more specific ultrasound related billing and coding questions, remember you can always email the ASRM Coding Corner at coding@asrm.org.

Coding Corner is segmented into the following sections. Click an image below to view questions and answers in that section.