# Claim edit: Missing insurance type code when Medicare is a non-primary payer > Stedi now rejects 837P professional and 837D dental claims where Medicare appears as a non-primary payer and the insurance type code is missing. Published Mar 25, 2026 Product: Claim edits Stedi now rejects [837P professional](https://www.stedi.com/docs/healthcare/submit-professional-claims) and [837D dental](https://www.stedi.com/docs/healthcare/submit-dental-claims) claims where Medicare appears as a non-primary payer and the insurance type code is missing. ## How the edit works In coordination of benefits (COB) scenarios, a claim may list multiple payers. For example, a patient may have a commercial payer as their primary payer and Medicare as their secondary payer. You indicate whether a payer is primary, secondary, tertiary, and so on using a [payment responsibility sequence number code](https://www.stedi.com/docs/healthcare/claims-code-lists#payment-responsibility-sequence-number-codes), also called a payment responsibility level code. **Payment responsibility level** | **Claim type** | **JSON API field** | **X12 element** | | ----------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | 837P professional | [`claimInformation.otherSubscriberInformation[].paymentResponsibilityLevelCode`](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-claims#body.claimInformation.otherSubscriberInformation.paymentResponsibilityLevelCode) | [`SBR-01`](https://portal.stedi.com/app/guides/view/hipaa/health-care-claim-professional-x222a1/01HR60MDFAGCSEJNKY8J38867Y#properties.detail.properties.billing_provider_hierarchical_level_HL_loop.items.properties.subscriber_hierarchical_level_HL_loop.items.properties.claim_information_CLM_loop.items.properties.other_subscriber_information_SBR_loop.items.properties.other_subscriber_information_SBR.properties.payer_responsibility_sequence_number_code_01) (Payer Responsibility Sequence Number Code) of Loop `2320` (Other Subscriber Information) | | 837D dental | [`claimInformation.otherSubscriberInformation[].paymentResponsibilityLevelCode`](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-dental-claims#body.claimInformation.otherSubscriberInformation.paymentResponsibilityLevelCode) | [`SBR-01`](https://portal.stedi.com/app/guides/view/hipaa/health-care-claim-dental-x224a3/01GRYB6G91ZX6R1XAFGBMRTBBW#properties.detail.properties.billing_provider_hierarchical_level_HL_loop.items.properties.subscriber_hierarchical_level_HL_loop.items.properties.claim_information_CLM_loop.items.properties.other_subscriber_information_SBR_loop.items.properties.other_subscriber_information_SBR.properties.payer_responsibility_sequence_number_code_01) (Payer Responsibility Sequence Number Code) of Loop `2320` (Other Subscriber Information) | Any non-primary payers on a claim must have a [claim filing indicator](https://www.stedi.com/docs/healthcare/claims-code-lists#claim-filing-indicator-codes). The indicator tells you what type of payer or plan it is. For example, `CI` is for a commercial insurance company. **Claim filing indicator** | **Claim type** | **JSON API field** | **X12 element** | | ----------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 837P professional | [`claimInformation.otherSubscriberInformation[].claimFilingIndicatorCode`](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-claims#body.claimInformation.otherSubscriberInformation.claimFilingIndicatorCode) | [`SBR-09`](https://portal.stedi.com/app/guides/view/hipaa/health-care-claim-professional-x222a1/01HR60MDFAGCSEJNKY8J38867Y#properties.detail.properties.billing_provider_hierarchical_level_HL_loop.items.properties.subscriber_hierarchical_level_HL_loop.items.properties.claim_information_CLM_loop.items.properties.other_subscriber_information_SBR_loop.items.properties.other_subscriber_information_SBR.properties.claim_filing_indicator_code_09) (Claim Filing Indicator Code) of Loop `2320` (Other Subscriber Information) | | 837D dental | [`claimInformation.otherSubscriberInformation[].claimFilingIndicatorCode`](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-dental-claims#body.claimInformation.otherSubscriberInformation.claimFilingIndicatorCode) | [`SBR-09`](https://portal.stedi.com/app/guides/view/hipaa/health-care-claim-dental-x224a3/01GRYB6G91ZX6R1XAFGBMRTBBW#properties.detail.properties.billing_provider_hierarchical_level_HL_loop.items.properties.subscriber_hierarchical_level_HL_loop.items.properties.subscriber_information_SBR.properties.claim_filing_indicator_code_09) (Claim Filing Indicator Code) of Loop `2320` (Other Subscriber Information) | If Medicare is a non-primary payer on the claim, the claim filing indicator must be `MA` (Medicare Part A) or `MB` (Medicare Part B). In these cases, an [insurance type code](https://www.stedi.com/docs/healthcare/claims-code-lists#insurance-type-codes) is also required. The insurance type code indicates why Medicare isn't the primary payer. For example, code `12` means the patient has an employer group health plan. **Insurance type code** | **Claim type** | **JSON API field** | **X12 element** | | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 837P professional | [`claimInformation.otherSubscriberInformation[].insuranceTypeCode`](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-claims#body.claimInformation.otherSubscriberInformation.insuranceTypeCode) | [`SBR-05`](https://portal.stedi.com/app/guides/view/hipaa/health-care-claim-professional-x222a1/01HR60MDFAGCSEJNKY8J38867Y#properties.detail.properties.billing_provider_hierarchical_level_HL_loop.items.properties.subscriber_hierarchical_level_HL_loop.items.properties.patient_hierarchical_level_HL_loop.items.properties.claim_information_CLM_loop.items.properties.other_subscriber_information_SBR_loop.items.properties.other_subscriber_information_SBR.properties.insurance_type_code_05) (Insurance Type Code) of Loop `2320` (Other Subscriber Information) | | 837D dental | [`claimInformation.otherSubscriberInformation[].insuranceTypeCode`](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-dental-claims#body.claimInformation.otherSubscriberInformation.insuranceTypeCode) | [`SBR-05`](https://portal.stedi.com/app/guides/view/hipaa/health-care-claim-dental-x224a3/01GRYB6G91ZX6R1XAFGBMRTBBW#properties.detail.properties.billing_provider_hierarchical_level_HL_loop.items.properties.subscriber_hierarchical_level_HL_loop.items.properties.subscriber_information_SBR.properties.insurance_type_code_05) (Insurance Type Code) of Loop `2320` (Other Subscriber Information) | If the insurance type code is missing, the payer may reject the claim. This [edit](https://www.stedi.com/docs/healthcare/claim-edits-and-repairs#edits) catches the issue before the claim reaches the payer. It prevents payer rejections, which are slower and delay payment for the provider. ## Rejection errors If you submit a claim using Stedi's [Claim Submission API endpoints](https://www.stedi.com/docs/healthcare/intro-to-claim-submission#api-claim-submission) and the claim fails the edit, you'll get back an error response in real time. The response includes details in the `errors` array. ```json { "errors": [ { "code": "33", "description": "Missing Insurance Type Code. This field is required when the claim filing indicator identifies Medicare and Medicare is not the primary payer. It is missing for the other subscriber (payer 06302, indicator MB). Correct and resubmit.", "followupAction": "Please Correct and Resubmit" } ] } ``` If you submit a claim using [SFTP](https://www.stedi.com/docs/healthcare/submit-claims-sftp-connection) and the claim fails the edit, Stedi will reject the claim with a [277CA claim acknowledgment](https://www.stedi.com/docs/healthcare/claim-responses-overview#277ca-claim-acknowledgment). The acknowledgment will include a related [claim status category code](https://x12.org/codes/claim-status-category-codes), [claim status code](https://x12.org/codes/claim-status-codes), entity identifier code, and error message. ```text STC*A6>590>GB*[DATE]*U*[AMOUNT]******A8>480>GB**Missing Insurance Type Code. This field is required when the claim filing indicator identifies Medicare and Medicare is not the primary payer. It is missing for the other subscriber (payer 06302, indicator MB). Correct and resubmit.~ ```