TL;DR: The Centers for Medicare & Medicaid Services (CMS) modified NCD 190, the Durable Medical Equipment Reference List, effective March 7, 2026. This update affects how A/B MACs (HHH) and DME MACs process DME claims across a broad range of equipment categories. No specific CPT or HCPCS codes are listed in this version of the policy. Here's what your billing team needs to know before claims hit the queue.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Centers for Medicare & Medicaid Services (CMS) |
| Policy | Durable Medical Equipment Reference List |
| Policy Code | NCD 190 |
| Change Type | Modified |
| Effective Date | 2026-03-07 |
| Impact Level | Medium |
| Specialties Affected | DME suppliers, home health, orthopedics, pulmonology, neurology, internal medicine, any specialty billing equipment under Medicare Part B DME benefit |
| Key Action | Audit your DME claim workflows against the updated reference list before March 7, 2026, and confirm MAC-level coverage determinations for any equipment not explicitly listed |
CMS Durable Medical Equipment Coverage Criteria and Medical Necessity Requirements 2026
NCD 190 is the National Coverage Determination that serves as CMS's master reference list for DME coverage status under Medicare. It exists specifically to help A/B MACs (HHH) and DME MACs process claims faster and more consistently — think of it as the index that tells MACs where to look and what to do when a DME claim lands on their desk.
The coverage policy for DME under Medicare has always rested on a five-part statutory definition. For an item to qualify as DME, it must meet all of the following, per 42 CFR §414.202:
| # | Covered Indication |
|---|---|
| 1 | Can withstand repeated use (i.e., could normally be rented by successive patients) |
| 2 | Has an expected life of at least three years (for items classified as DME after January 1, 2012) |
| 3 | Is primarily and customarily used to serve a medical purpose |
| 4 | Is not useful to a person in the absence of illness or injury |
| 5 | Is appropriate for use in the patient's home |
Every single DME claim you submit to Medicare gets evaluated against these criteria, whether you're billing a power wheelchair, a CPAP device, or a hospital bed. If your equipment doesn't clear all five bars, the claim fails — and no amount of documentation fixes a fundamental eligibility problem.
The medical necessity standard here is layered. MAC medical consultants weigh FDA marketing approval, general safety and effectiveness for the intended purpose, and whether the item is reasonable and necessary for the specific patient. That last point — individual patient necessity — is where most denials originate. "The patient needs it" is not a medical necessity argument. "The patient's documented condition requires this specific equipment for home use" is.
Prior authorization requirements for specific DME items are not detailed within NCD 190 itself. The reference list points MAC processors to other sections of the Medicare Coverage Manual for item-specific criteria. If you're billing a high-ticket item like a power mobility device or a ventilator, prior auth requirements will live in the relevant NCD or LCD for that equipment category — not in this list.
CMS DME Reference List Exclusions and Non-Covered Indications
NCD 190's structure is worth understanding because it explicitly categorizes equipment into covered and non-covered buckets, with explanations for why non-covered items fall outside the benefit. That means the reference list is doing two jobs: confirming what's payable and documenting why certain items can't be billed as DME.
Items that fail the five-part statutory definition don't get a coverage determination — they're simply outside the benefit category. Equipment that is primarily useful to a person in the absence of illness or injury (exercise equipment is the classic example) falls here. So does equipment that isn't appropriate for home use, even if it serves a medical purpose in a clinical setting.
When a claim comes in for equipment that doesn't logically fit any of the NCD 190 generic categories — and hasn't been addressed under 42 CFR §§414.114 or 414.240 — the MAC has explicit authority to make its own coverage determination. This is the provision that creates real billing exposure. Your claim doesn't get auto-denied; it gets manually reviewed by a MAC medical consultant. That review can go either way, and it will be slower.
Coverage Indications at a Glance
Because the policy data for this version of NCD 190 does not provide a complete enumerated equipment list (the full table was truncated in the source document), the following reflects the framework CMS uses to assign coverage status across equipment categories. Do not treat this as an exhaustive list — pull the full reference table directly from CMS before March 7, 2026.
| Indication Category | Status | Relevant Codes | Notes |
|---|---|---|---|
| Equipment meeting all five 42 CFR §414.202 criteria | Covered (conditions apply) | Item-specific HCPCS — see applicable NCD/LCD | Coverage conditions vary by equipment category; cross-reference specific NCD |
| Equipment failing any element of 42 CFR §414.202 | Not Covered | N/A | MAC will document reason for exclusion |
| Equipment not listed in NCD 190 categories | MAC Discretion | N/A | MAC medical consultant makes coverage call; expect manual review and potential delay |
| Equipment lacking FDA marketing approval | Not Covered | N/A | Safety and effectiveness standard not met |
| Equipment not reasonable and necessary for the individual patient | Not Covered | N/A | Must be documented at the patient level, not the condition level |
CMS DME Billing Guidelines and Action Items 2026
This policy modification is a reference list update — which sounds administrative, but the downstream billing implications are real. Here's what to do before March 7, 2026.
| # | Action Item |
|---|---|
| 1 | Pull the current NCD 190 reference list in full from CMS.gov and compare it to your DME charge capture. The truncated source data for this update means you need the complete document to know exactly what changed. Don't bill off an outdated list. |
| 2 | Identify any equipment categories you regularly bill that don't appear in the NCD 190 generic categories. These claims will route to MAC discretionary review under the authority granted in this policy. Flag them for your billing team now — they need longer processing timelines in your AR projections. |
| 3 | For any equipment your MAC is deciding on at its own discretion, document FDA approval status explicitly in the claim file. MAC medical consultants weigh this directly. If you can't produce it, the determination will likely go against you. |
| 4 | Audit your medical necessity documentation for DME claims with effective dates on or after March 7, 2026. The patient-level necessity standard — "reasonable and necessary for the individual patient" — is not changing, but any list update resets the baseline for MAC reviewers. Make sure your documentation is specific to the individual, not just the diagnosis. |
| 5 | Confirm the expected useful life documentation for all DME classified after January 1, 2012. The three-year minimum life requirement is a hard eligibility rule. If you're billing equipment where longevity is ambiguous, get the manufacturer documentation in the file before the claim goes out. |
| 6 | Talk to your compliance officer if your practice bills a significant volume of items that sit at the edge of the DME definition. The MAC discretionary review provision is well-intentioned but inconsistent across contractors. What one MAC covers, another may deny. If you operate across multiple MAC jurisdictions, that inconsistency is a real revenue risk. |
| 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 Durable Medical Equipment Under NCD 190
This policy does not list specific CPT, HCPCS Level II, or ICD-10-CM codes in the version data available for NCD 190 (Policy Key: 190-v4). That's consistent with what NCD 190 is designed to do — it's a reference framework that points to other NCDs and LCDs for item-specific coding guidance, not a code-level billing policy itself.
The HCPCS codes that apply to any specific piece of DME will be found in:
- The item-specific NCD (e.g., NCD 280.1 for power mobility devices, NCD 240.2 for home oxygen)
- The relevant LCD issued by your DME MAC (CGS, Noridian, Palmetto GBA, or Novitas)
- CMS's DMEPOS fee schedule for reimbursement rates
If you're looking up whether a specific HCPCS E-code, K-code, or A-code is covered under the DME benefit, NCD 190 gives you the framework for that determination — but the code-level answer will be in the item-specific policy. Don't skip that lookup.
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