Endocrinology Billing Audit
Capture and support the diabetes technology, thyroid procedures and complex visits that make up most endocrinology revenue.
Endocrinology revenue rests on complex visits and a handful of procedures that are easy to miscode. Continuous glucose monitoring has separate codes for sensor start-up and training with patient-owned equipment (95249) or practice-provided equipment (95250), and for interpretation of at least 72 hours of data (95251), each with frequency limits. The thyroid fine-needle aspiration codes (10005–10012) include imaging guidance, so billing ultrasound guidance separately is a common error, while a separate diagnostic thyroid ultrasound can still be billed when it is performed and documented on its own. Our audit reviews E/M level selection for patients with several conditions, CGM and remote monitoring programs, and thyroid procedure notes against the claims.
Audit red flags
- Ultrasound guidance (76942) billed with FNA codes 10005–10012, which already include imaging guidance.
- CGM interpretation (95251) billed more than once in 30 days or without a written interpretation.
- Visits for patients with several unstable chronic conditions billed at low E/M levels out of caution.
- Remote patient monitoring billed without the required days of data or documented management time.
Audit action plan
- 1. E/M & Complexity Review — Sample visits for each clinician to test E/M level selection against medical decision making or time, including G2211 use for Medicare patients.
- 2. Diabetes Technology Program Audit — Check CGM, insulin pump and remote monitoring billing for documentation, data requirements and frequency limits.
- 3. Thyroid Procedure Check — Compare ultrasound and FNA procedure notes with billed codes, lesion counts and bundled imaging.
Codes reviewed
- 95249 / 95250 — CGM sensor start-up and training (patient-owned / practice-provided equipment)
- 95251 — CGM interpretation and report (at least 72 hours of data)
- 10005 / 10006 — Fine-needle aspiration biopsy with ultrasound guidance, first / each additional lesion
- 76536 — Ultrasound of soft tissues of the head and neck (thyroid)
Frequently asked questions
How often can CGM interpretation (95251) be billed?
95251 requires at least 72 hours of data and is billed no more than once per 30 days for the same patient, with a written interpretation and report.
Can ultrasound guidance be billed with a thyroid FNA?
No. Since 2019 the FNA biopsy codes 10005–10012 include imaging guidance, so ultrasound guidance is not reported separately. A separate diagnostic thyroid ultrasound that is performed and documented on its own can still be billed when it meets the payer's rules.
Should an endocrinology practice use G2211?
For Medicare patients whose endocrine conditions you manage on an ongoing basis, G2211 can be added to office visits when the relationship is longitudinal. It should not be added to one-time consultations or visits without that ongoing relationship.