Method·July 31, 2026 · 4 min read

The product code that doesn't exist yet

FDA's classification database has no row for a device type until a De Novo request is granted — the product code, the regulation number, even the classification itself are created by the grant order, not looked up before it. A watch keyed to "your product code" cannot fire on a category that is still being invented.

By Connor Griggs — Regulatory & Quality Strategist

Type a product code into a portfolio setup form for a device with no predicate, and the lookup comes back empty — not because the form is broken, but because FDA has not yet written the row that code would occupy. For a genuinely novel device, the product code does not predate the regulatory decision. The decision creates it.

Every other pathway starts with a code that already exists

A 510(k) submission cites a predicate, and a predicate already has a product code — the applicant is arguing equivalence to something FDA classified previously. A PMA for an existing device type slots into a classification that is likewise already on the books. Both pathways presuppose the row in FDA’s classification database that a lookup like FDA Radar’s own product-code lookup reads at signup: one three-letter code in, eleven fields out — device class, regulation number, review panel, the rest — because the code has been sitting in openFDA’s classification API since whichever earlier decision first assigned it.

De Novo is the pathway that has nothing to look up

21 CFR Part 860, Subpart D governs the alternative: a device with no legally marketed predicate, low or moderate enough risk that general or special controls provide reasonable assurance of safety and effectiveness, can request classification directly rather than arguing equivalence to something that doesn’t exist. FDA has 15 calendar days to tell the requester whether the request is accepted for review, and up to 120 days from acceptance to issue an order — granting the request under 21 CFR 860.260, or declining it. Nothing about a product code appears anywhere in the request itself. There is nothing to cite, because the classification being requested has never existed.

Every other submission argues into an existing category. A De Novo request argues that the category should exist at all.

What the grant order actually does

The order granting a De Novo request is the event that creates the row. FDA assigns a new three-letter product code, establishes the classification regulation the device will sit under — a new section, not a borrowed one — and, for a device classified into Class II, publishes the special controls that will govern it and every device that follows it into the same code. The device that requested the classification becomes, from that date, the first entry under it — and the first available predicate for anyone who follows with a 510(k) into the category the grant just opened. None of that exists a day earlier. The product code is a consequence of the order, not an input to it.

What a portfolio tool honestly does with the gap

A lookup built on openFDA’s classification API cannot return a code that doesn’t exist in it yet, and the honest behavior is to say so rather than to guess. FDA Radar’s own product-code lookup treats an empty result as an answer, not an error: no such code, stated plainly, rather than a best guess dressed up as a match. For a device moving through De Novo review, that is the correct answer for as long as the request is pending — there is nothing yet to derive a profile from, because FDA itself has not yet decided what the profile is.

The practice

A portfolio built around a first-in-category device has to watch a different document during the gap: the De Novo request itself, and FDA’s public decision summaries for granted requests in the relevant specialty area, rather than a product-code filter that has nothing to match against yet. The day the grant order posts is the day the product code, the regulation number, and the classification all come into existence at once — and it is also the earliest date any watch keyed to that code could possibly have fired. Setting up the watch before that date accomplishes nothing; checking for the grant itself is the only thing that does.

Whether a specific device qualifies for De Novo rather than a 510(k), and what a competitor’s granted De Novo means for your own predicate strategy, is a determination for a regulatory professional working the file — this describes a mechanism in how classifications come to exist, not a reading of any specific submission. Once a code exists, FDA Radar treats it exactly like any other: a lookup, not a promise, joined against your portfolio the same day it becomes real.

Regulatory intelligence, not regulatory advice. This post describes method and published FDA records as of its date; decisions about a specific device belong with your regulatory professional.

Method
The PMA clock starts at the last module
Practice
The Q-Sub that doesn't buy you more time
Method
Lapsed and revoked end an EUA differently
Practice
A recall strategy has a grade. openFDA doesn't.
Method
A granted De Novo becomes a predicate.
Practice
Least burdensome changes the ask, not the bar.
Method
The lab is accredited. Not the device.
Practice
Breakthrough is law. STeP is a guidance.
Practice
MDSAP replaces routine. Not for-cause.
Method
No field on a 510(k) says what it treats
Method
Discretion is a policy. Exclusion is a statute.
Practice
Designated by one office. Approved by another.
Method
MedSun sits beside MAUDE, not inside it
Practice
The five-unit device never gets a K-number
Practice
Meeting the criteria isn't a tracking order
Method
The PMA clock doesn't stop at approval
Practice
The K-number doesn't track today's device
Method
A MAUDE report proves it was filed
Practice
Not every MDR starts with the manufacturer
Method
Completed. Not terminated.
Practice
The device-ban list has three entries
Method
The UDI exception has its own deadline
Method
MDUFA VI is being negotiated in public
Practice
The inspection manual changed, not the rule
Method
The count Congress had to legislate
Practice
The small-business rate isn't retroactive
Method
A detention order has no docket to read
Practice
PMA approvals moved off the Federal Register
Method
A citizen petition names names
Practice
A market withdrawal isn't a recall
Method
Not every device letter comes from CDRH
Practice
Closed on one device. Open on the rest.
Method
No IDE is confirmed until the PMA is
Practice
The remedial-action call sets the clock
Method
Jurisdiction is a letter, not a field
Practice
An address is not a footprint
Method
The final rule that isn't final yet
Practice
The special controls aren't in the record
Method
Exempt from GMP. Not from complaints.
Practice
The notify list isn't the shortage list
Method
A constraint can't be skipped. A script can.
Practice
No cron sends this. A person does.
Method
Corrected, not rewritten
Practice
Quiet is a finding, not a default
Method
The summary is public. The statement isn't.
Practice
A competitor's 513(g) leaves no trace
Practice
An empty response field proves nothing
Method
A petition is public. Its outcome isn't.
Practice
The panel is a category, not a meeting
Method
An accessory carries its own classification
Method
A TPLC report is a category, not a device
Practice
A 522 order is a question, not a verdict
Method
A PCCP change leaves no new record
Practice
Not every signal becomes a recall
Method
eSTAR did not remove the acceptance check
Practice
An early alert has no recall number yet
Practice
A consent decree isn't a database row
Method
The record has no cybersecurity field
Practice
Classification Change is not one event
Method
Publication date is not effective date
Method
One event. Many recall numbers.
Practice
Quantity is a sentence, not a number
Practice
How a firm told you is a field too
Method
A RIN outlives the document number
Method
The docket ID is not the comments
Practice
The 510(k) record doesn't name the predicate
Practice
The 510(k) FDA didn't review first
Method
The letter FDA doesn't have to post
Practice
Cleared doesn't say which track it took
Method
The clock stops. The calendar doesn't.
Method
Why a guessed match never reaches you
Practice
The standards list never names a device
Method
The guidance isn't in the Federal Register.
Practice
Filtered. Not discarded.
Method
There are two recall databases, not one
Practice
Breakthrough status is confidential by law
Practice
One MAUDE report is not one malfunction
Method
A supplement number is not a track
Method
Cleared is not approved
Practice
Nationwide doesn't mean your building
Practice
Not every correction reaches FDA
Method
Registered. Not reviewed.
Method
Contact ODE is not a pathway
Practice
Almost no recall is FDA-mandated
Method
FDA's device names read like a card catalog
Practice
openFDA is free. It is not unlimited.
Method
GUDID stores the model. Not the box.
Practice
Detention doesn't need a warning letter
Method
A Class I device, a Class I recall
Practice
21 CFR 820 didn't move. Its contents did.
Practice
The classification posts. The 483 behind it doesn't.
Method
A recall has three dates, and the pipeline had to pick one
Practice
The count is real. The rate is not.
Method
The firm on the record is not the firm on the box
Practice
Low confidence is an instruction, not a hedge
Method
The same company, spelled three ways
Practice
A device that was never a medical device
Method
FDA's warning letters, addressed by column number
Practice
Your regulation has a decimal. FDA's watch doesn't.
Method
Three letters is too short to search for
Practice
Most warning letters never close
Method
The guidance that skipped the draft
Practice
Ongoing, as of when?
Method
The least interesting fact in a 510(k)
Practice
No recall arrives with a product code attached
Practice
The deadline that doesn't email you
Method
The warning letter has two dates
Method
How to monitor FDA without drowning
Practice
Your predicate was recalled. Now what?
Method
Why no item reaches you without a human