CDSCO Medical Device Classification: Understanding Class A, B, C and D in India

CDSCO Medical Device Classification

Launching a medical device in India involves more than developing a useful product and preparing it for the market. One of the first regulatory questions a manufacturer or importer needs to answer is: What risk class does the medical device fall under?

This is where CDSCO Medical Device Classification becomes important.

India follows a risk-based system under the Medical Devices Rules, 2017 (MDR 2017). Medical devices are placed into four categories — Class A, B, C and D — according to the level of risk associated with them. The higher the potential risk, the greater the regulatory requirements generally become.

Understanding the classification correctly can make the licensing and compliance process much easier. It also helps businesses determine what regulatory pathway may apply to their product.

What Is CDSCO Medical Device Classification?

The Central Drugs Standard Control Organisation (CDSCO) is India's national regulatory authority for medical devices, among other regulated healthcare products.

Under Rule 4 of the Medical Devices Rules, 2017, medical devices other than in vitro diagnostic devices are classified according to the parameters specified in Part I of the First Schedule. The four categories are:

  • Class A – Low Risk

  • Class B – Low Moderate Risk

  • Class C – Moderate High Risk

  • Class D – High Risk

The classification is not based simply on the product's name. Factors such as intended use and other parameters prescribed under the First Schedule are considered.

This is important because two products that look similar may not necessarily receive the same classification if their intended purposes or risk profiles differ.

Understanding the Four Medical Device Classes

Class A – Low Risk

Class A represents medical devices with the lowest level of risk among the four categories.

Examples can include certain relatively simple products where the consequences of failure are comparatively limited. However, being placed in Class A does not mean that the manufacturer can ignore regulatory requirements.

There are also specific provisions for certain Class A non-sterile and non-measuring medical devices. CDSCO records an exemption from the licensing regime for this category under the relevant 2022 notification.

Manufacturers should therefore check the exact product category and current regulatory requirements instead of assuming that every Class A device follows an identical process.

Class B – Low Moderate Risk

Class B devices carry a higher level of risk than Class A devices.

Products in this category can include devices where incorrect performance or failure could have a more significant effect on the user or patient.

The regulatory framework applies requirements proportionate to the risk associated with the device. CDSCO states that Class A and Class B devices are subject to the applicable regulatory framework, including the notified body provisions relevant to their assessment.

The actual classification should always be checked against the current CDSCO classification list and applicable rules.

Class C – Moderate High Risk

Class C covers devices with a moderate-to-high level of risk.

At this level, regulatory scrutiny becomes more significant because problems with the device may have serious consequences for patients or users.

CDSCO currently identifies Class C and Class D devices as being under the licensing regime. For manufacturing, applications for Class C and Class D devices are made through the applicable CDSCO process, including the prescribed forms under the Medical Devices Rules.

Manufacturers should pay close attention to quality management, testing, technical documentation, and other applicable requirements before applying.

Class D – High Risk

Class D is the highest risk category in India's four-tier medical device classification system.

These devices may have a direct and significant impact on patient health, particularly where their failure could lead to serious injury or other severe consequences.

The regulatory requirements for Class D devices are consequently more demanding. Manufacturers need to establish compliance with the relevant requirements before obtaining the necessary licence.

Examples cited in government material include high-risk products such as certain cardiac stents and implants.

How Is a Medical Device Classified?

A common mistake is to classify a product simply by looking at what it is called.

Under the Medical Devices Rules, the intended use of the product is an important consideration. The classification framework also uses the parameters specified in the First Schedule. The Central Licensing Authority classifies medical devices based on intended use and these prescribed parameters.

Depending on the device, factors relevant to classification can include aspects such as:

  • How the device is intended to be used

  • How long it is intended to be used

  • Whether it is invasive

  • Whether it is implantable

  • Whether it is active

  • Whether it is intended to support or sustain life

  • Whether it is intended for diagnosis, monitoring or treatment

The applicable classification rules need to be examined carefully because a small difference in intended use can affect the regulatory position.

Also Read - BIS FMCS vs BIS Certification

What About In Vitro Diagnostic Devices?

IVDs follow a separate classification framework.

Under Part II of the First Schedule to the Medical Devices Rules, 2017, in vitro diagnostic medical devices are also divided into four risk classes:

Class A, Class B, Class C and Class D.

CDSCO describes these as low, low moderate, moderate high and high risk respectively.

For example, CDSCO's MedTech Mitra material gives blood collection tubes and certain clinical chemistry analysers as examples associated with Class A, pregnancy self-tests and urine test strips with Class B, certain COVID-19 IVDs with Class C, and blood donor screening tests with Class D.

The classification of an IVD should therefore be assessed under the IVD-specific rules rather than applying the classification criteria for ordinary medical devices.

Why Is Correct Classification Important?

Getting the classification right is one of the earliest steps in the compliance process.

The class can affect the regulatory pathway, licence requirements, testing, assessment, technical documentation and other obligations applicable to the manufacturer or importer.

CDSCO's current online medical-device system also provides a facility for submitting applications for risk classification of medical devices, with a corresponding provision for IVD classification introduced through the online system.

This can be particularly useful when a manufacturer is uncertain about the appropriate classification.

It is also worth remembering that CDSCO's classification lists are not permanently fixed. CDSCO states that the classification list is dynamic and can be revised, including additions, deletions or changes to the class of a device.

A Simple Example

Imagine a manufacturer develops a device for monitoring a patient's vital signs.

Rather than deciding its class based only on the product name, the manufacturer would need to examine its intended purpose, how it is used, the level of risk associated with its failure, and the relevant classification rules.

Now imagine another device that looks similar but is designed to support a critical life-sustaining function. Its intended use and risk profile could lead to a different classification.

This is why classification should be based on the applicable regulatory criteria rather than appearance alone.

What Should Manufacturers Do Before Applying?

Before starting the application process, a manufacturer or importer should:

  1. Clearly define the device's intended purpose.

  2. Identify whether the product is a medical device or an IVD.

  3. Check the relevant CDSCO classification list.

  4. Review the applicable Medical Devices Rules and First Schedule.

  5. Check whether the classification has been updated through a later CDSCO notification.

  6. Prepare technical and product information consistent with the stated intended use.

  7. Seek a formal risk-classification determination where the applicable route requires or supports it.

Companies working in medical-device compliance may also use professional resources such as umspcs for guidance, while the CDSCO website and current regulatory documents should remain the primary reference.

Conclusion

CDSCO Medical Device Classification provides a risk-based framework for regulating medical devices in India. The four categories — Class A, B, C and D — range from low risk to high risk, allowing regulatory requirements to be applied according to the potential risk associated with a product.

For manufacturers and importers, classification should not be treated as a routine formality. The intended use, technical characteristics and applicable classification rules all need to be considered carefully.

Since CDSCO can update classification lists and regulatory requirements, businesses should check the latest official information before submitting an application. Starting with the correct classification can prevent unnecessary delays and help ensure that the rest of the compliance process follows the appropriate route.

Frequently Asked Questions

1. What are the four CDSCO medical device classes?

Medical devices are divided into Class A, Class B, Class C and Class D, representing low, low moderate, moderate high and high risk respectively.

2. Is Class D the highest-risk category?

Yes. Under the Medical Devices Rules, 2017, Class D represents the high-risk category.

3. Who classifies medical devices in India?

The Central Licensing Authority classifies medical devices based on their intended use and the parameters specified in the First Schedule of the Medical Devices Rules, 2017.

4. Are IVDs classified in the same way?

IVDs also use four risk classes — A through D — but their classification is determined using the parameters in Part II of the First Schedule, which is specifically applicable to IVDs.

5. Can the classification of a medical device change?

Yes. CDSCO states that its risk-classification list is dynamic and that the Central Licensing Authority may add, remove or modify classifications from time to time.

6. Can a manufacturer request risk classification?

CDSCO's current online medical-device system provides a facility for submitting applications for risk classification of medical devices.

7. Does a higher class mean more regulatory requirements?

Generally, the regulatory framework applies requirements proportionate to the risk associated with the device. Higher-risk categories therefore have more extensive regulatory requirements than lower-risk categories.

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