Submit claims
You can submit professional, dental, and institutional claims through the Stedi portal:
- Electronic claims: You submit through the Stedi portal. Stedi submits your claim to the payer electronically.
- Paper claims: You submit through the Stedi portal with the receiver ID set to
PAPER(Print and Mail - All Payers). Stedi prints and mails the claim to the payer on your behalf.
Electronic claims
You can submit professional claims through our interactive claim form or by uploading X12 EDI claim data. There's no interactive claim form for dental and institutional claims, but you can submit them by uploading X12 EDI claim data.
Claim form (professional only)
The CMS-1500 form only supports submitting claims to the patient's primary health plan, though you can include information about secondary or tertiary payers if required. To submit claims directly to secondary or tertiary payers, use X12 EDI upload, API, or SFTP instead.
To submit a professional claim: Go to the claims view, click Submit claim, and select CMS-1500 form from the dropdown.
The submission form is based on the CMS-1500 Claim Form.

Enter the required information for your professional claim. Notably:
| Form section | Instructions and Notes |
|---|---|
| Send | Select whether you want to send the claim Electronically or By mail.
|
| Stedi payer | Select a Payer from the dropdown list. Start typing to filter the list. When you select a Medicare or Medicaid payer, Stedi automatically sets Box 1 (Insurance Type) to match. You can change the value in Box 1 if needed. |
| Patient account number | We strongly recommend submitting a unique value in Box 26 (Patient acccount number). The identifier should be more complex than a simple sequential number and should be hard to guess. The payer returns this value in related transactions, such as the 277CA and 835 ERA, so you can correlate responses and real-time claim status checks with the original claim.
|
| Line item control numbers | The line item control number is an identifier for each service line in Box 24 (Service lines) that you can use correlate the original claim with the 835 ERA.
|
| Attachments | Submit claim-level attachments in Box 19b (Claim attachments) and service-line attachments in Box 24 (Service lines). Note that you can't add attachments to claims that were already submitted through the portal. To include attachments for those, resubmit the claim with the attachments.
|
| Secondary or tertiary or payer details | Select an option in Box 11d (Is there another health benefit plan?).
|
When you're finished, click Submit claim. Stedi validates the claim and submits it to the payer. It will appear on the claims view within a few minutes.
Later, you'll also see related claim responses, such as 277CA claim acknowledgments and 835 Electronic Remittance Advice (ERAs).
X12 EDI upload
You can submit professional, dental, and institutional claims through the Stedi portal in X12 EDI format. Claim data must adhere to the following X12 HIPAA claim specifications:

To manually submit an X12 EDI claim:
-
Go to the claims view.
-
Click Submit claim and select Upload raw X12 file.
-
Do one of the following:
- Click Upload X12 EDI and select an existing
.edifile. - Select the transaction type and then paste the X12 EDI content into the text area.
You can submit multiple claims in a single file, as long as all claims are 837s of the same type and X12 version. Visit Bulk claims for details.
- Click Upload X12 EDI and select an existing
-
Set
ISA15(Interchange Usage Indicator) toT(Test Data) orP(Production Data), accordingly. Production claims are sent to payers. Test claims aren't sent to payers - Stedi's test clearinghouse processes them and returns test 277CA acknowledgments so you can evaluate your claim processing pipeline. -
Fix any X12 EDI validation errors that appear after adding the claim content. Stedi highlights errors in red and displays the specification for the claim type you selected on the right side of the screen to make it easier to identify and fix issues.
These validations ensure your claim data conforms to the HIPAA specification. Stedi runs additional claim edits on your claim data after submission.
-
Click Submit claim.
Stedi processes the claim and runs claim edits to identify errors that could lead to a payer rejection. If a claim fails one of Stedi's edits, you'll receive a 277CA claim acknowledgment from Stedi rejecting the claim immediately after submission. This can happen even when the X12 EDI editor showed no errors before submission.
If the claim passes all of Stedi's edits, Stedi submits it to the payer. It will appear on the claims view within a few minutes.
Bulk claims
You can submit multiple claims in a single X12 EDI file, as long as they are all the same claim type (professional, institutional, or dental) and X12 version. You can submit multiple claims in the same 837 transaction by including multiple instances of the following loops:
Loop 2000A(Billing provider)Loop 2000B(Subscriber)Loop 2300(Claim Information) - You can submit up to 1,000 claim loops in each 837 transaction
After submission, Stedi separates your bulk 837 transaction into individual claims and sends each claim separately to the payer. This includes multiple claims going to the same payer - all claims within a bulk submission are sent individually to maintain consistency.
The following example would produce 12 separate claims (2 x 3 x 2 = 12), each shown individually on the claims view:
- 837 transaction contains information for two billing providers (2x
Loop 2000A) - Each billing provider has three subscribers (3x
Loop 2000B) - Each subscriber has two claims (2x
Loop 2300)
Then, you'll typically receive separate 277CA claim acknowledgments for each claim. Each claim will also receive its own test ERA from Stedi's test clearinghouse if the payer was STEDITEST.
Paper claims
Some payers require you to submit claims on paper rather than electronically. Instead of mailing these claims yourself, you can send the claim information to Stedi using an electronic submission workflow with the receiver ID set to PAPER (Print and Mail - All Payers). Stedi then handles printing and mailing the claim to the designated payer on your behalf.
You can submit the following claim types as paper claims:
- Professional: Through the CMS-1500 form or X12 EDI upload
- Dental: Through X12 EDI upload
- Institutional: Through X12 EDI upload
How it works
Here's the end-to-end paper claims process:
Submit your claim through the CMS-1500 form or X12 EDI upload with the receiver ID set to PAPER and the payer's mailing address. You can also include unsolicited claim attachments.
Stedi validates the claim and any attachments before sending them to our print-and-mail partner for processing.
You can monitor progress through the claims view. The claim timeline for paper claims shows its print status as the claim moves through staged, queued, printed, and mailed stages. You receive a 277CA claim acknowledgment for every successful submission, and another 277CA when the claim is mailed or when the claim fails.
Once available, you can download the PDF proof showing exactly what was mailed to the payer.
The payer receives the printed claim package and processes it. They typically mail an Explanation of Payment (EOP) for commercial payers or Standard Paper Remittance (SPR) for Medicare and Medicaid back to the provider.
Limitations
Paper claims have the following limitations:
- No test mode: You can submit test paper claims through Stedi, but Stedi doesn't generate test lifecycle 277CAs, such as a 277CA indicating the test claim was mailed.
- No preview before submission: You can't preview the rendered claim form before submission. Once available, you can download a PDF proof from the portal.
- ERAs typically unavailable: Payers that require paper claim submission usually don't support Electronic Remittance Advice (ERAs). Instead, they typically mail an Explanation of Payment (EOP) for commercial payers or Standard Paper Remittance (SPR) for Medicare and Medicaid back to the provider.
Transaction enrollment
Transaction enrollment isn't required for paper claim submission. However, you may still need enrollment for Electronic Remittance Advice (ERAs) if the payer supports them.
Note that payers that require paper claim submission usually don't support ERAs:
- HIPAA covered entity health plans are required to send ERAs electronically.
- Other health plans may use different formats and communication channels for both claim submissions and remittances.
Submit paper claims
You can submit paper claims through the CMS-1500 form or X12 EDI upload in the Stedi portal. All submission methods require you to set the receiver ID to PAPER and include the payer's mailing address.
Paper receiver ID
Stedi uses a special payer ID to route claim submissions for printing and mailing: PAPER (Print and Mail - All Payers). You must submit this as the receiver ID in the claim submission.
For paper claims, it's the receiver ID that determines whether a claim is printed and mailed or sent electronically:
| Name | Location | Description |
|---|---|---|
| Receiver ID |
| Controls the delivery method. |
| Payer ID |
| Identifies the destination payer. |
When you set the receiver ID to PAPER (or select By mail in the CMS-1500 form), Stedi bypasses the traditional electronic submission flow and uses the mail-to payer name and mailing address to print and mail a paper claim to the payer.
You'll still set the payer ID to the destination payer's ID or alias, if available in the Stedi Payer Network. However, you can also set the payer ID to PAPER when you need to send paper claims to payers outside of the electronic network.
For example, you can set the receiver ID to PAPER while keeping the payer ID as CIGNA. This, along with Cigna's mailing address, tells Stedi to print and mail the claim to Cigna.
CMS-1500 form UI
You can submit professional paper claims through the CMS-1500 form. Within the form, configure these paper-specific settings:

-
In the Send section, select By mail. This expands the UI to show additional fields for the mail-to payer name and payer address.
-
In the Stedi payer dropdown:
- If the payer exists in Stedi's Payer Network, select it from the dropdown.
- If the payer is not in the network, check I'm sending to a payer not found in Stedi's network. Stedi automatically populates the dropdown with the Print and Mail - All Payers option.
-
In the Postage address section:
- Update the Mail-to payer name if necessary. This becomes the addressee on the physical envelope.
- Complete the Payer address fields with the complete mailing address where Stedi sends the claim.
-
For attachments:
- In the Claim attachments section, choose a Report type.
- Attach the file to the submission. Stedi prints the attachment in color and mails it along with the claim to the payer.
After you submit the claim, Stedi uses the paper payer ID and the mailing address you provided to route the claim for printing and mailing.
X12 EDI upload
You can submit professional paper claims through X12 EDI upload. Construct an X12 EDI claim as you normally do. Then, add the following information.
| Location | Elements |
|---|---|
Loop 1000B (Receiver Name) | Set the following paper-specific elements:
|
Loop 2010BB (Payer Name) | Set the following paper-specific elements:
|
After you submit the claim, Stedi uses the receiver ID set to PAPER, the payer ID, and the mailing address you provided to route the claim for printing and mailing.
The following example shows a professional paper claim to a payer in Stedi's Payer Network. It uses:
- The paper payer ID
PAPERinLoop 1000B(Receiver Name)NM109. - Cigna's payer ID from the Stedi Payer Network in
Loop 2010BB(Payer Name)NM109.
ISA...~
GS...~
ST*837*0001*005010X222A1~
...
NM1*40*2*CIGNA*****46*PAPER~ // Paper payer ID
NM1*PR*2*CIGNA*****PI*62308~ // Name and payer ID
N3*123 Example Street*STE 100~ // Mailing address
N4*Mountain View*CA*940433706~
...
SE...~
GE...~
IEA...~The following example shows a submission for a payer outside Stedi's Payer Network. It uses:
- The paper payer ID
PAPERinLoop 1000B(Receiver Name)NM109. - The paper payer ID
PAPERinLoop 2010BB(Payer Name)NM109.
ISA...~
GS...~
ST*837*0001*005010X222A1~
...
NM1*40*2*ACME Employer LLC*****46*PAPER~ // Paper payer ID
NM1*PR*2*ACME Employer LLC*****PI*PAPER~ // Name and paper payer ID
N3*987 Example Street*STE 200~ // Mailing address
N4*Philadelphia*PA*19192~
...
SE...~
GE...~
IEA...~Track print status
As a paper claim moves through the print-and-mail workflow, it goes through the following statuses:
| Stage | Meaning |
|---|---|
| Staged | Stedi accepted the claim for mailing. |
| Queued | The print-and-mail partner queued the claim for printing. |
| Printed | The print-and-mail partner printed the claim form and any attachments. |
| Mailed | The print-and-mail partner mailed the claim package to the payer. |
| Failed | The claim wasn't mailed. The timeline row shows the reason. |
Stedi mails claim packages within the US using USPS First Class postage. USPS estimates delivery in 1 to 5 days.
The latest print status appears in several locations:
-
Claims view: Shows the status as an icon in the Status column. You can filter by print status.
-
Claim details panel and claim timeline: The Claim details panel displays the current status in the Print status row. The claim timeline shows the progression through each stage.

You receive 277CA claim acknowledgments when the claim reaches the Staged, Mailed, or Failed status.
Paper claim responses
When you submit a paper claim, you receive different types of responses than you do for electronic claims. This section explains what to expect.
Receipt confirmation
Immediately after submission, the Stedi portal displays a confirmation message with the submitted claim details.
277CA claim acknowledgments
Stedi generates a 277CA claim acknowledgment with status A1/20 when it accepts a claim for processing and marks the claim's status as Staged. After that, Stedi sends a 277CA when the claim reaches Mailed status or Failed status. Visit Track print status for details on all available statuses.
-
Mailed: When the claim is successfully mailed to the payer, you receive a 277CA with status
A0/16(Accepted). The free-form message text states: "The claim has been mailed to the payer. Further updates for the claim may become available via mail." -
Failed: When the payer address fails validation and the claim is not mailed, you receive a 277CA with status
A7/126(Failed). The free-form message text states: "The claim was not mailed due to a validation error of the payer address provided. Please check the provided payer address (2010BB N3/N4) and resubmit."
You won't receive electronic 277CAs from the payer the way you do for an electronic claim submission. Instead, payers may send printed acknowledgments through the mail.
Explanation of Payment (EOP) and Standard Paper Remittance (SPR)
Payers that require paper claim submission usually don't support Electronic Remittance Advice (ERAs). Instead, they typically mail an Explanation of Payment (EOP) for commercial payers or Standard Paper Remittance (SPR) for Medicare and Medicaid back to the provider.
This means you won't receive 835 ERAs through Stedi for paper claims. You'll receive paper EOPs or SPRs by mail from the payer.
PDF proof of mailing
After the print-and-mail partner produces the claim proof, Stedi makes a PDF available in the Stedi portal. The proof represents the printed claim package, including the printed form and any associated attachment pages.
You can download the PDF proof from two locations in the Stedi portal:
-
Claim timeline: Click Download on the Printed row in the claim's timeline.
-
Claim details page: Click Download printed claim on the claim details page.

The PDF isn't available immediately at claim submission. You can download the proof only after the print-and-mail partner has printed the claim.
To fit the printed form, Stedi standardizes addresses and reformats some fields. The printed claim can differ slightly from the data you submitted. The claim details page shows a note when this happens.
Best practices
Follow these best practices when submitting paper claims:
- Monitor for 277CA acknowledgments: Watch for the 277CA indicating either successful mailing or failure. You can track additional status updates (staged, queued, and printed) in the Stedi portal.
- Treat mailed 277CA as confirmation: Use the mailed 277CA as confirmation that the print-and-mail partner sent the package to the payer.
- Investigate failures promptly: If you receive a failed acknowledgment, review and correct the payer address, then resubmit. If you don't, the claim won't be mailed to the payer.
- Keep PDF proofs: Download and retain the PDF proof from the Stedi portal for audits, appeals, and payer follow-up.
Download CMS-1500 PDF
Stedi automatically generates a PDF CMS-1500 claim form for submitted professional claims.
You can download a PDF version of professional claims in the CMS-1500 format from both the timeline view and the claim's detail page.
-
From the claims view, click a professional claim to open its timeline.
-
Do one of the following:
- From the timeline view, hover over the claim and click Download CMS-1500 claim PDF.
- Open the claim's detail page and click Download CMS-1500 claim PDF.
-
In the download menu, choose whether to Include CMS-1500 form background. This option is checked by default.
The National Uniform Claim Committee (NUCC) and CMS provide exact specifications for blank CMS-1500 forms, including paper size and ink color. Many provider offices are accustomed to using these pre-printed forms, and their Practice Management System (PMS) applications are designed to print claim data onto them. Generating PDFs with no background allows you to print the claim data directly onto official pre-printed forms.
-
Click Confirm download. The PDF downloads to your computer.
Payers have strict requirements for submitted CMS-1500 claim forms. If you plan to send generated PDFs to payers or retain them for your records, we strongly recommend visiting CMS-1500 Claim Form PDF for information about the correct printer settings for generated PDFs and general best practices.