CMS Updates NCD 346: What Billing Teams Need to Know About Depression Screening Coverage in 2026

CMS has modified National Coverage Determination (NCD) 346, which governs annual depression screening for Medicare beneficiaries. The Centers for Medicare & Medicaid Services (CMS) policy confirms coverage for depression screening in primary care settings—but only under specific structural conditions, with hard limits on frequency and scope. If your practice bills Medicare for depression screening services, this policy review is worth your full attention.

What CMS Covers Under NCD 346: Annual Depression Screening for Medicare Patients

Under NCD 346, CMS covers annual depression screening—up to 15 minutes per encounter—for Medicare beneficiaries enrolled in Part A and Part B. The screening must occur in a primary care setting. That's not a minor detail: coverage is explicitly tied to the site of service.

The USPSTF assigns depression screening in adults a grade B recommendation, which is the statutory basis CMS used to authorize this as an "additional preventive service" under Medicare. Because of that B rating, Medicare coinsurance and the Part B deductible are both waived for this service—meaning it should be billed as a zero-cost-sharing preventive benefit for the patient.

CMS does not specify which depression screening tool must be used. The PHQ-2, PHQ-9, and other validated instruments are all acceptable. The choice is at the clinician's discretion.

The Staff-Assisted Care Support Requirement—The Most Commonly Missed Coverage Criterion

This is where many claims go wrong. Coverage under NCD 346 is not automatic just because a clinician administers a screening tool. The policy requires that the primary care setting have staff-assisted depression care supports in place at the time of service.

At minimum, those supports must include clinical staff—a nurse, physician assistant, or equivalent—who can:

1. Advise the physician of screening results
2. Facilitate and coordinate referrals to mental health treatment when indicated

If your practice cannot document that these care supports exist and are operational, the claim is vulnerable to denial. This is a medical necessity condition, not a documentation formality. Practices that use a paper PHQ-9 handed to patients in the waiting room without any coordinated follow-up infrastructure do not meet the policy's coverage threshold.

CMS Depression Screening Coverage Limits: Frequency and Scope

The policy is explicit about what is and is not covered. Billing teams should internalize these boundaries:

Covered:

• Annual screening (once per 12-month period), up to 15 minutes
• Performed in a primary care setting with staff-assisted supports in place

Not covered:

• Screening performed more than once in a 12-month period
• Treatment for depression or related conditions
• Pharmacotherapy or combination therapy (medications plus counseling)
• Self-help materials
• Telephone calls related to depression support
• Web-based counseling

That last cluster—phone calls, web-based counseling, self-help resources—is explicitly non-reimbursable under this NCD and cannot be billed separately to Medicare. If your practice offers these as part of a care management program, they are not separately billable under NCD 346.

Why This Matters for Medicare Billing in Primary Care Settings

One in six adults over 65 experiences depression. An estimated 25% of older patients with comorbidities—cancer, arthritis, cardiovascular disease, stroke, chronic lung disease—also meet criteria for depression. These are your highest-utilization Medicare patients, and they're frequently in your chairs.

The clinical stakes are significant: 50-75% of older adults who died by suicide visited their primary care physician in the month before their death. Thirty-nine percent were seen in the final week. Depression screening in this population is not a checkbox—it's a genuine mortality-reduction intervention.

From a revenue cycle standpoint, this also means the screening encounters are happening in your practice whether you're billing for them optimally or not. Understanding the coverage rules ensures you're capturing appropriate reimbursement while remaining compliant.

Affected Codes

The policy data for NCD 346 does not list specific CPT or HCPCS codes within the policy document itself. Refer to CMS Transmittal 2359 and Transmittal 2431 (Medicare Claims Processing) for the applicable billing codes, which CMS issued alongside this NCD. Your Medicare Administrative Contractor (MAC) can also confirm the correct HCPCS or CPT codes for annual depression screening claims in your region.

Note for billing teams: The G-code series has historically been associated with CMS preventive service billing. Confirm current code assignment with your MAC or through the CMS claims processing transmittals linked in the policy before submitting claims.

What Your Billing Team Should Do