What Is the CPT Code for a Well-Woman Exam? A Practical Billing Guide

The CPT code for well woman exam can be confusing because there isn't one code that works for every visit. The well woman exam cpt code you need depends on the patient's age, whether they're new or established, the insurance plan, and what actually happened during the appointment.

For example, a routine preventive visit may use one code, while a pelvic exam, Pap test, or another problem addressed during the visit can change the claim. Medicare also has its own rules, so the same approach doesn't always work for commercial plans.

What is the CPT code for a well-woman exam 

For most commercial insurance, a well-woman visit is billed with an age-based preventive medicine code somewhere between 99381 and 99397. New patients use 99381 to 99387, while established patients use 99391 to 99397. The code depends on the patient's age on the date of the visit.

Medicare is a different story. Medicare doesn't pay under the commercial preventive codes. For a Medicare well woman exam, you're generally looking at G0101 for the screening pelvic and clinical breast exam, plus Q0091 when a Pap was collected. If the visit also included the yearly wellness check, G0438 or G0439 may apply.

Same appointment. Different codes. The payer picks.

Which CPT codes are used for a well-woman exam

Here’s the working list most OB/GYN front desks should have handy when checking the cpt code well woman exam for a visit.

Patient age	Commercial (new)	Comm ercial (establised)	Medicare pelvic + breast	Medicare Pap collection	Medicare AWV
18 to 39	99385	99395	G0101*	Q0091*	G0438 / G0439
40 to 64	99386	99396	G0101*	Q0091*	G0438 / G0439
65 and older	99387	99397	G0101	Q0091	G0438 / G0439

For patients under 65, these codes only apply when the plan follows Medicare rules. Some Advantage plans do, some don't, so check the payer before billing.

There’s also CPT 99459, the pelvic exam add-on introduced for 2024. It can be reported with an eligible E/M or preventive code when the required pelvic exam services are performed.

What is CPT code 99396 for a Well-Woman Exam

CPT 99396 is the preventive visit code for an established patient aged 40 to 64. It covers the annual visit, including the history, exam, counseling, and risk review.

For many OB/GYN billing, 99396 is the main well woman cpt code used for patients in this age group.

Two things can cause problems with 99396:

• It's not for Medicare. Even if the patient is 64, Medicare is primary, so you need to follow the Medicare billing rules instead.

• If a separate problem was addressed during the visit, you may bill the problem-focused E/M with 99396 and modifier 25 when the documentation supports it.

What is the CPT Code for an Annual GYN Exam

There isn't one specific annual gyn exam CPT code. For commercial plans, the preventive family is 99381 to 99397. For Medicare screening, you're generally looking at G0101 and Q0091 when the requirements are met.

An annual GYN exam is simply how the visit is described. The payer looks at the actual service and the code submitted.

Some commercial plans may also have specific coverage for an annual GYN visit. Check the payer's current policy before assuming both services will be covered.

If your practice is handling a high volume of these visits, understanding how OB/GYN billing services work can also help when deciding what to keep in-house and what to outsource. 

How do you code a well-woman exam with a Pap test

This is where billing can get confusing. A Pap isn't automatically handled the same way with every well woman cpt code. It depends on the payer.

For Medicare, you may have:

• G0101 for the screening pelvic and breast exam

• Q0091 for collecting the Pap specimen

• Lab codes such as G0123, G0143, G0144, G0145, G0147, or G0148 for the laboratory service

The lab usually submits the laboratory claim separately.

Commercial payers can handle Pap collection differently. Some bundle it into the preventive visit, while others may allow separate reporting. Check the payer's current policy before billing it separately.

How do you Bill for a Well-Woman Exam

Here's the order I would follow when putting the claim together:

1. Check the payer first. Medicare and commercial plans can have different billing rules.

2. Match the patient's age and status to the correct preventive code.

3. Choose the ICD-10 code that reflects what happened during the visit. For a routine gynecological exam without abnormal findings, Z01.419 is commonly used. If abnormal findings are documented, Z01.411 may apply. Always check the payer's current requirements.

4. Check the Pap collection rules. Don't assume it can be billed separately; payer requirements can differ.

5. Use modifier 25 only when it's supported. A separate problem-focused service needs to be performed and documented.

6. Check whether CPT 99459 applies to the pelvic exam and whether the payer allows it.

7. Review the medical record before submitting. Every code on the claim should be supported by the documentation.

The CPT code tells the payer what service was performed, while the ICD-10 code explains why the patient was seen. The documentation needs to support both.

CPT changes can also affect other OB/GYN services, so it's worth keeping an eye on upcoming 2027 maternity CPT code changes 

FAQ

What are the documentation requirements for CPT code 99459?

For CPT 99459, the note should show that the pelvic exam was performed with the eligible E/M or preventive visit, document the chaperone offer and response, and support the exam itself. It is never billed alone.

Are well woman exams covered by Medicare?

Yes, well woman exams can be covered by Medicare. G0101 and Q0091 generally follow a 24-month schedule for average-risk patients and a 12-month schedule for eligible high-risk patients. The AWV follows its own schedule.

What are the Medicare Well Woman exam guidelines?

Medicare well woman exam guidelines generally allow G0101 and Q0091 every two years for average-risk patients, with annual coverage for eligible high-risk patients. Keep documentation that supports the patient's risk status and billing frequency.