TL;DR: The Centers for Medicare & Medicaid Services modified NCD 278, its coverage policy for Multiple Electroconvulsive Therapy (MECT), effective January 9, 2026. MECT remains non-covered under Medicare. Here's what billing teams need to know.
This update reaffirms CMS's long-standing position: MECT is not covered under Medicare because its clinical effectiveness has not been verified by scientifically controlled studies. The policy does not list specific CPT or HCPCS codes. If your practice or facility bills for any electroconvulsive therapy services under Medicare, you need to understand where this line is drawn — before you submit a claim.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | CMS (Centers for Medicare & Medicaid Services) |
| Policy | Multiple Electroconvulsive Therapy (MECT) — NCD 278 |
| Policy Code | NCD 278 |
| Change Type | Modified |
| Effective Date | 2026-01-09 |
| Impact Level | Medium — affects any psychiatric billing team submitting ECT-related claims under Medicare |
| Specialties Affected | Psychiatry, neurology, hospital outpatient departments, inpatient psychiatric facilities |
| Key Action | Confirm your charge capture does not include MECT; any MECT claim submitted to Medicare will deny |
CMS Multiple Electroconvulsive Therapy Coverage Criteria and Medical Necessity Requirements 2026
NCD 278 is the National Coverage Determination governing Medicare's position on Multiple Electroconvulsive Therapy. MECT is a variation of standard ECT in which multiple seizures are induced within a single treatment session — not the single-seizure ECT that Medicare does cover under certain conditions.
CMS's coverage policy here is direct: MECT does not meet the medical necessity standard. The agency cites two problems. First, no scientifically controlled studies have verified MECT's clinical effectiveness. Second, existing studies show an increased risk of adverse effects when multiple seizures are induced in a single session.
Because MECT fails the medical necessity test on both counts — unproven benefit and demonstrated harm risk — CMS classifies it as not reasonable and necessary. That language is the statutory standard under Section 1862(a)(1)(A) of the Social Security Act. When a service doesn't clear that bar, Medicare won't pay for it.
This is not a prior authorization situation. Prior authorization implies the service might be covered if you meet certain criteria. MECT doesn't work that way under this coverage policy. There are no criteria to meet. There is no prior auth pathway. The service is categorically excluded.
If your billing team has been waiting for CMS to soften this position, this update is not that. The January 9, 2026 modification maintains the exclusion without qualification.
CMS MECT Exclusions and Non-Covered Indications
The real issue with NCD 278 is the distinction between standard ECT and MECT. These are not interchangeable terms in Medicare billing, and conflating them is how claims go wrong.
Standard single-seizure ECT has a different coverage history under Medicare. MECT — defined specifically as the induction of multiple seizures in one session — is what NCD 278 addresses, and it is not covered. Full stop.
CMS bases this exclusion on the absence of validated clinical evidence. That's consistent with how the agency treats other procedures it considers investigational or unproven. The pattern is the same one you saw with early transcranial magnetic stimulation coverage fights and certain neuromodulation procedures before CMS eventually opened coverage — except here, the adverse effect data adds an active safety concern, not just a gap in efficacy data.
That combination — no proof it works, evidence it causes more harm — makes this a harder case for coverage advocates to challenge than a pure "insufficient evidence" exclusion. Don't expect this to change on a short timeline.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Multiple Electroconvulsive Therapy (MECT) — multiple seizures in a single session | Not Covered | No specific codes listed in NCD 278 | Excluded under Medicare as not reasonable and necessary; no prior authorization pathway exists |
| Standard single-seizure ECT | Not addressed by NCD 278 | Not within scope of this NCD | Separate coverage rules apply — consult your MAC's LCD guidance for single-seizure ECT |
CMS MECT Billing Guidelines and Action Items 2026
This policy is not complicated to execute, but it does require your team to have the right guardrails in place. Here are the steps to take before and after the January 9, 2026 effective date.
| # | Action Item |
|---|---|
| 1 | Audit your charge capture for any MECT codes. The policy does not list specific CPT or HCPCS codes, but if your charge description master (CDM) or superbill includes any line item describing multiple-seizure ECT, remove it from the Medicare payer context. MECT billing under Medicare will result in a claim denial every time. |
| 2 | Train clinical staff on the MECT vs. ECT distinction. Physicians and procedure scheduling teams need to understand that documenting or ordering "multiple-seizure ECT" triggers a non-covered service under Medicare. This is where the exposure starts — not in billing, but in documentation. |
| 3 | Check your MAC's LCD for single-seizure ECT. NCD 278 covers MECT exclusively. Your Medicare Administrative Contractor may have separate local coverage determination guidance for standard ECT. Pull that guidance and make sure your billing guidelines reflect it accurately. |
| 4 | Update your denial management workflow. If a MECT claim somehow reaches a Medicare payer, your denial management team should recognize the NCD 278 denial code immediately and not pursue appeals. There is no medical necessity argument to make here — the service is categorically non-covered, not denied for insufficient documentation. |
| 5 | Review any self-pay or alternative payer arrangements for MECT. Medicare won't pay for MECT, but a patient may want to pursue it through other means. Make sure your financial counseling team understands the reimbursement situation clearly so they can give patients accurate information. If your practice is exploring MECT in any capacity, loop in your compliance officer before billing any payer for this service. |
| 6 | Document the effective date of this update in your policy log. The effective date is January 9, 2026. Your internal policy change log should reflect this modification so your billing team has a record if a claim question surfaces in an audit later. |
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for MECT Under NCD 278
Covered CPT Codes
No covered codes are listed under NCD 278. MECT is not covered under Medicare, and there are no CPT or HCPCS codes designated for covered MECT services.
Not Covered / Experimental Codes
The policy does not list specific CPT or HCPCS codes for MECT billing. CMS has not assigned a dedicated code set to MECT within NCD 278. If your team encounters a claim question involving ECT-adjacent codes, cross-reference with your MAC's LCD for ECT to confirm whether the specific service is single-seizure ECT (which has separate coverage rules) or MECT (which is excluded under this NCD).
The absence of specific codes in NCD 278 is itself a signal. CMS is not saying "bill this code and it will deny." CMS is saying MECT is not a covered service, period — regardless of how it's coded. That means the claim denial risk exists at the service level, not the code level.
Key ICD-10-CM Diagnosis Codes
No ICD-10-CM codes are specified in NCD 278. The policy excludes MECT categorically, without reference to specific diagnosis codes. There are no diagnosis codes that would establish medical necessity for MECT under Medicare.
A Note on the Cross-Reference: Transmittal AB-03-003
CMS cross-references this policy to Program Memorandum AB-03-003, the transmittal document for intermediaries and carriers. That document predates the MAC structure — CMS issued it to the legacy fiscal intermediary and carrier system.
The substance still applies. If your compliance officer or billing consultant wants the original agency reasoning behind this exclusion, the transmittal is on the CMS website. It gives you the claims processing instructions context that sits behind the NCD language.
This kind of older cross-reference is common in long-standing NCDs that haven't been fully overhauled. It doesn't change what your billing team needs to do. MECT remains non-covered. But it's useful to know the policy has history, and that this January 2026 modification is a maintenance update — not a coverage reversal or a coverage expansion.
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