Question 1

What insurance policy changes affect HCPCS G0400?

Accepted Answer

There are 4 tracked policy changes affecting HCPCS G0400, including updates from UPMC Health Plan, Nevada Medicaid. Each change may modify coverage criteria, reimbursement rates, or prior-authorization requirements.

Question 2

Which payers have updated policy for HCPCS G0400?

Accepted Answer

Payers that have issued tracked updates for HCPCS G0400 include: UPMC Health Plan, Nevada Medicaid.

Question 3

How do I get notified when HCPCS G0400 policy changes?

Accepted Answer

Create a free account at PolicyChanges.app and save a search filtered to HCPCS G0400. You will receive a daily digest email whenever a new policy change references this code.

Question 4

Why do payers change policies for HCPCS G0400?

Accepted Answer

Payers revise policies for individual billing codes to align with updated clinical guidelines, CMS rule changes, fraud and abuse prevention measures, or network cost-management goals. Changes can affect medical necessity criteria, place-of-service restrictions, bundling rules, or whether a code requires prior authorization.

G0400 Insurance Policy Changes

Pause in Prior Authorization Policies

Attention Provider Type 74 (Nurse Midwife): Sleep Codes G0398, G0399 and G0400 Cannot Be Billed

Attention Provider Types 20 (Physician, M.D., Osteopath D.O.), 24 (Advanced Practice Registered Nurses), and 77 (Physician’s Assistant): Rates for Procedure Codes G0398, G0399, and G0400 Submitted with Modifiers TC and 26

Attention Provider Types 24 (Advanced Practice Registered Nurses), 74 (Nurse Midwife) and 77 (Physician’s Assistant): Procedure Codes G0398, G0399, and G0400 Opened for Billing (Updated February 23, 2026)