Medical Device Classification in India: How to Determine Class A, B, C or D

In India, every medical device must be correctly classified before it can be manufactured, imported or sold. Wrong classification leads to delayed approvals, rejected applications or compliance issues. The Medical Devices Rules, 2017 (MDR 2017), enforced by the Central Drugs Standard Control Organisation (CDSCO), provide a clear risk-based classification system that places devices into Class A, Class B, Class C or Class D.

Understanding the Regulatory Framework under MDR 2017

The Medical Devices Rules, 2017 came into force on 1 January 2018. Rule 4 of the Rules states that medical devices (other than in-vitro diagnostic devices) are classified on the basis of parameters given in Part I of the First Schedule. In-vitro diagnostic medical devices follow Part II of the same Schedule.

The four classes reflect increasing levels of risk to the patient or user:

• Class A – Low risk
• Class B – Low-moderate risk
• Class C – Moderate-high risk
• Class D – High risk

The Central Licensing Authority (CLA), i.e., CDSCO, is the final authority that classifies devices based on intended use and the parameters in the First Schedule. CDSCO periodically publishes official risk classification lists on its website. Manufacturers and importers are expected to refer to these lists. Where a device is not yet listed, the classification rules in the First Schedule must be applied carefully.

Key Factors That Decide the Class

Classification is not arbitrary. The First Schedule examines several practical factors:

• Whether the device is non-invasive, invasive (body orifice) or surgically invasive
• Duration of contact or use (transient – less than 60 minutes; short-term – up to 30 days; long-term – more than 30 days)
• Whether the device is active (powered) or non-active
• Contact with injured skin, blood, central circulatory system or central nervous system
• Whether the device is implantable or life-supporting/sustaining
• Intended purpose and potential harm if the device fails

If more than one rule applies, the strictest rule that results in the higher class is followed.

Class A – Low Risk Medical Devices

Class A devices pose the lowest risk. Typical examples include simple non-invasive items such as bandages, examination gloves, tongue depressors, basic surgical instruments (non-powered), and many non-sterile, non-measuring devices.

Many Class A (non-sterile and non-measuring) devices enjoy simplified requirements. They are exempt from certain chapters of the Rules provided the manufacturer or importer registers them under the applicable provisions. The State Licensing Authority (SLA) is responsible for issuing manufacturing licences for Class A medical devices.

Prior inspection is generally not required before grant of manufacturing licence for pure Class A devices.

Class B – Low-Moderate Risk Medical Devices

Class B devices carry a moderate level of risk. Common examples include hypodermic needles, syringes, blood pressure monitors, pulse oximeters, digital thermometers, and certain reusable surgical instruments.

The manufacturing of Class B devices is likewise overseen by the State Licensing Authority (SLA). A Notified Body registered with CDSCO usually audits the Quality Management System. Import of Class B devices still requires approval from the Central Licensing Authority.

Class C – Moderate-High Risk Medical Devices

Class C devices present higher risk and include more complex or critical products. Examples include lung ventilators, bone fixation plates, dialysis machines, CT and MRI equipment, defibrillators, and many orthopaedic implants that are not Class D.

Both manufacturing and import of Class C devices fall under the Central Licensing Authority. Technical documentation is more extensive, and site inspection or Notified Body involvement is common.

Class D – High Risk Medical Devices

Class D covers the highest-risk devices. These typically include cardiac stents, heart valves, implantable pacemakers, hip and knee implants, and devices that come into direct contact with the central circulatory system or central nervous system for long-term use.

All regulatory activities for Class D devices are controlled by the Central Licensing Authority. Clinical data, detailed risk management files and rigorous post-market surveillance expectations apply.

How to Determine the Correct Class – Practical Steps

1. Confirm that the product meets the definition of a medical device under the Drugs and Cosmetics Act and the Medical Devices Rules, 2017.
2. Study the intended use carefully – this is the single most important factor.
3. Check the latest official classification lists published by CDSCO for the relevant specialty (cardiovascular, orthopaedic, general hospital, IVD, etc.).
4. If the device is not listed, apply the classification rules in Part I (or Part II for IVDs) of the First Schedule step by step, starting from the most specific rules.
5. Document the rationale clearly. Keep a classification memo ready for submission.
6. When in doubt, seek formal clarification or expert regulatory advice before filing the application.

Incorrect self-classification is one of the most frequent reasons for queries and delays in CDSCO applications.

Regulatory Implications of Each Class

• Licensing Authority: SLA for manufacture of Class A and B; CLA for manufacture of Class C and D and for all imports.
• Quality Management System: Alignment with Schedule V (essentially ISO 13485) is required across classes, with intensity increasing with risk.
• Clinical data and Essential Principles: Higher classes demand more robust evidence of safety and performance.
• Post-market obligations: All classes require adverse event reporting; higher classes face stricter surveillance and periodic safety updates.

Why Choose a Specialised Regulatory Partner Like MDR Consultants

Navigating CDSCO requirements, keeping track of frequently updated classification lists, preparing accurate technical files and coordinating with Notified Bodies demands specialised knowledge. Many companies lose months because of incomplete documentation or wrong class selection.

MDR Consultants focuses exclusively on medical device and IVD regulatory affairs in India. We help clients:

• Accurately determine Class A, B, C or D status using official lists and First Schedule rules
• Prepare complete applications for manufacturing or import licences
• Coordinate Notified Body audits and respond to CDSCO queries
• Maintain ongoing compliance, including post-market surveillance and change notifications

Working with an experienced team reduces risk, shortens timelines and gives manufacturers and importers confidence that their classification and submissions are correct the first time.

Conclusion

Correct medical device classification under the Medical Devices Rules, 2017 is the foundation of successful regulatory compliance in India. Understanding whether a product falls under Class A, Class B, Class C or Class D determines the licensing authority, the depth of documentation required and the overall compliance burden. Always refer to the latest CDSCO classification lists and the First Schedule parameters. When the rules appear complex or the device is novel, professional guidance saves time and prevents costly mistakes.

If you need support in classifying your medical device or preparing a CDSCO application, reach out to the team at MDR Consultants. Accurate classification today leads to smoother market access tomorrow.

Last Updated : 04 Sep 2026