{"id":3961,"date":"2025-07-25T11:09:34","date_gmt":"2025-07-25T11:09:34","guid":{"rendered":"https:\/\/cmcmedicaldevices.com\/?p=3961"},"modified":"2025-07-25T11:09:34","modified_gmt":"2025-07-25T11:09:34","slug":"us-fda-vs-eu-mdr-key-differences-in-medical-device-classification","status":"publish","type":"post","link":"https:\/\/cmcmedicaldevices.com\/es\/us-fda-vs-eu-mdr-key-differences-in-medical-device-classification\/","title":{"rendered":"US FDA vs EU MDR: Key differences in medical device classification"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p>Selling a medical device in both the <b>United States<\/b> and the <b>European Union<\/b> means navigating two different regulatory systems.<\/p>\n<p>Although both rely on risk-based classification, <b>the criteria, terminology, and approval processes vary significantly<\/b>. Misunderstanding these differences can lead to delays, non-compliance, or unnecessary costs. A clear understanding of both frameworks is crucial to streamline your global market access strategy.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/cmcmedicaldevices.com\/es\/us-fda-vs-eu-mdr-key-differences-in-medical-device-classification\/#Medical_device_classification_under_the_MDR_EU\" >Medical device classification under the MDR (EU)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/cmcmedicaldevices.com\/es\/us-fda-vs-eu-mdr-key-differences-in-medical-device-classification\/#Medical_device_classification_under_the_FDA_US\" >Medical device classification under the FDA (US)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/cmcmedicaldevices.com\/es\/us-fda-vs-eu-mdr-key-differences-in-medical-device-classification\/#5_key_differences_between_FDA_and_MDR_classifications\" >5 key differences between FDA and MDR classifications<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/cmcmedicaldevices.com\/es\/us-fda-vs-eu-mdr-key-differences-in-medical-device-classification\/#Common_mistakes_when_dealing_with_both_systems\" >Common mistakes when dealing with both systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/cmcmedicaldevices.com\/es\/us-fda-vs-eu-mdr-key-differences-in-medical-device-classification\/#Need_support_with_FDA_and_MDR_classification\" >Need support with FDA and MDR classification?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Medical_device_classification_under_the_MDR_EU\"><\/span>Medical device classification under the MDR (EU)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The<b style=\"font-weight: bold;\"> <\/b><b>EU Medical Device Regulation (MDR 2017\/745)<\/b> divides devices into four risk-based classes:<\/p>\n<ul>\n<li><strong>Class I<\/strong> (low risk), further divided into:\n<ul>\n<li><b>Class I (standard)<\/b> \u2013 non-sterile, non-measuring, non-reusable surgical<\/li>\n<li><b>Class Is<\/b> \u2013 sterile<\/li>\n<li><b>Class Im<\/b> \u2013 with measuring function<\/li>\n<li><b>Class Ir<\/b> \u2013 reusable surgical<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><b>Only standard Class I devices can be self-certified by the manufacturer<\/b>. All other subclasses require involvement of a Notified Body for the specific features (e.g. sterility, measuring accuracy, or reusability).<\/p>\n<p><b>Higher-risk classes include:<\/b><\/p>\n<ul>\n<li><b>Class IIa<\/b> \u2013 low to medium risk<\/li>\n<li><b>Class IIb <\/b>\u2013 medium to high risk<\/li>\n<li><b>Class III <\/b>\u2013 high risk<\/li>\n<\/ul>\n<p>Classification rules are detailed in <b>Annex VIII of the MDR<\/b>, and manufacturers are responsible for correctly assigning the class based on factors like invasiveness, duration of use, and software components.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Medical_device_classification_under_the_FDA_US\"><\/span>Medical device classification under the FDA (US)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The <b>U.S. Food and Drug Administration (FDA) <\/b>categorizes devices into three classes, based on the intended use and associated risk:<\/p>\n<ul>\n<li><strong>Class I<\/strong>: low risk, subject to General Controls. Many are exempt from premarket submission.<\/li>\n<li><strong>Class II<\/strong>: moderate risk, typically requiring a <b>510(k) premarket notification<\/b>.<\/li>\n<li><strong>Class III<\/strong>: high risk, requiring a <b>Premarket Approval (PMA)<\/b> with clinical evidence.<\/li>\n<\/ul>\n<p>Each device is assigned a <b>product code<\/b> that defines its class and applicable regulatory requirements. The classification depends heavily on the <b>intended use <\/b>and similarity to previously approved devices (<i>predicate devices<\/i>).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"5_key_differences_between_FDA_and_MDR_classifications\"><\/span>5 key differences between FDA and MDR classifications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong><b>Number of classes<\/b>:<\/strong> <b>MDR uses four risk<\/b> classes, <b>FDA uses three<\/b>.\n<\/li>\n<li><strong><b>Classification approach<\/b>:<\/strong> The <b>MDR follows 22 classification rules<\/b>, while the <b>FDA bases classification on intended use and product code<\/b>.\n<\/li>\n<li><strong><b>Certification path<\/b>:<\/strong> <b>In the EU, only standard Class I devices can be placed on the market without Notified Body involvement<\/b>. All other classes (including Is, Im, Ir) require partial or full assessment. <b>In the US<\/b>, <b>Class II and III devices<\/b> <b>require premarket submissions <\/b>(510(k), De Novo, or PMA), while <b>most Class I <\/b>devices are <b>exempt but<\/b> still <b>subject to general controls<\/b>.\n<\/li>\n<li><strong><b>Treatment of Class I devices<\/b>:<\/strong> <b>Only standard Class I devices under MDR can be fully self-declared<\/b>. Others require partial review. <b>Under FDA<\/b>, many <b>Class I<\/b> devices are <b>exempt<\/b> from 510(k), <b>but still subject to general controls<\/b>.\n<\/li>\n<li><strong><b>Software classification<\/b>:<\/strong> A <b>standalone software may be Class I under FDA<\/b> <b>but Class IIa or higher under MDR<\/b>, depending on its medical function.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Common_mistakes_when_dealing_with_both_systems\"><\/span>Common mistakes when dealing with both systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>Many manufacturers assume a direct match between MDR and FDA classes<\/b>. In reality, trying to \u201cmap\u201d one system onto the other often leads to:<\/p>\n<ul>\n<li>Misclassifying the device under FDA due to unclear intended use\n<\/li>\n<li>Failing to consider MDR Class I subdivisions (Is, Im, Ir)\n<\/li>\n<li>Assuming a CE-marked product automatically qualifies for 510(k) exemption\n<\/li>\n<li>Underestimating FDA&#8217;s clinical data expectations for PMA\n<\/li>\n<li>Ignoring differences in post-market obligations (EU requires PMS and PSUR; FDA focuses on adverse event reporting)<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Need_support_with_FDA_and_MDR_classification\"><\/span>Need support with FDA and MDR classification?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>At <b>CMC Medical Devices<\/b>, we <b>support manufacturers<\/b> in developing <b>robust international regulatory strategies <\/b>by providing tailored guidance on <b>product classification under both MDR and FDA frameworks<\/b>.<\/p>\n<p>Our team assists in the <b>preparation of fully compliant technical documentation for EU and US submissions<\/b>, manages<b> interactions with Notified Bodies<\/b> and <b>coordinates 510(k)<\/b>, <b>PMA<\/b> or <b>De Novo<\/b> procedures in close alignment with FDA requirements. This integrated approach helps streamline approvals and ensures faster, safer access to global markets.<\/p>\n<p>Understanding classification differences is just the first step. If you&#8217;re planning to enter both markets or need support navigating regulatory pathways, we&#8217;re here to help.<\/p>\n<p><strong>Get in touch with our team to discuss your project and receive expert guidance tailored to your product and business goals.<\/strong><\/p>\n<\/div><div style=\"text-align:center;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" style=\"--button_margin-top:10px;--button_margin-bottom:20px;\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/cmcmedicaldevices.com\/contact\/\"><span class=\"fusion-button-text\">Contact us for more information<\/span><\/a><\/div><div class=\"fusion-image-element \" style=\"text-align:center;--awb-max-width:600px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1640\" height=\"924\" alt=\"US FDA vs EU MDR\" title=\"US FDA vs EU MDR\" src=\"https:\/\/cmcmedicaldevices.com\/wp-content\/uploads\/2025\/07\/US-FDA-vs-EU-MDR.jpg\" class=\"img-responsive wp-image-3953\" srcset=\"https:\/\/cmcmedicaldevices.com\/wp-content\/uploads\/2025\/07\/US-FDA-vs-EU-MDR-200x113.jpg 200w, https:\/\/cmcmedicaldevices.com\/wp-content\/uploads\/2025\/07\/US-FDA-vs-EU-MDR-400x225.jpg 400w, https:\/\/cmcmedicaldevices.com\/wp-content\/uploads\/2025\/07\/US-FDA-vs-EU-MDR-600x338.jpg 600w, https:\/\/cmcmedicaldevices.com\/wp-content\/uploads\/2025\/07\/US-FDA-vs-EU-MDR-800x451.jpg 800w, https:\/\/cmcmedicaldevices.com\/wp-content\/uploads\/2025\/07\/US-FDA-vs-EU-MDR-1200x676.jpg 1200w, https:\/\/cmcmedicaldevices.com\/wp-content\/uploads\/2025\/07\/US-FDA-vs-EU-MDR.jpg 1640w\" sizes=\"(max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><\/div><\/div><\/div><\/div>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;3961&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;5&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this&quot;,&quot;legend&quot;:&quot;5\\\/5 - (5 votos)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;US FDA vs EU MDR: Key differences in medical device classification&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (5 votos)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"gallery","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3961","post","type-post","status-publish","format-gallery","hentry","category-sin-categorizar","post_format-post-format-gallery"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>US FDA vs EU MDR: Device Classification Differences<\/title>\n<meta name=\"description\" content=\"US FDA vs EU MDR: key differences in classification, risk levels and approval routes. 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