EDI 270 Eligibility Inquiry — Data Dictionary

This page explains every column in the eligibility-inquiry layout for X12 EDI 270 files.

Use it to understand subscriber and dependent inquiries, requested service types, payer and provider context, dates, identifiers, and related eligibility-request information.

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CSV/Excel mapping of all 227 output columns and their EDI 270 sources. No PHI.

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Current Smart Mapping contract

Smart Mapping supports a 270 when ST03 is exactly 005010X279A1, or when ST03 is blank and GS08 is exactly 005010X279A1. A near-match or unsupported implementation remains available only through Raw segments mode.

The current projection is one unified 227-field Smart Mapping schema; there is no separate 270 Key schema. It emits one row per EQ segment. Repeated EQ01 service types remain on their owning EQ row and count as separate service occurrences in Analysis. A member without an EQ emits no Smart inquiry row.

Source, receiver, subscriber, and dependent ownership follows resolved HL02 parent links. Malformed or unresolved parents fail closed. Primary identity is entity-code aware: PR for the information source, 1P for the receiver, IL for the subscriber, and 03 for a dependent; an unrelated NM1 in the same HL cannot replace that role.

For member dates, the first DTP*291 and DTP*102 populate convenience fields; later same-qualifier and other member DTP occurrences retain qualifier, D8/RD8 format, and raw value in Other Subscriber Dates or Other Patient Dates. Inquiry DTP occurrences remain separately scoped to their EQ.

For member references, the first REF*1L and REF*SY populate their qualifier-specific convenience fields. Later same-qualifier and other member REF occurrences retain REF01, REF02, and REF03 in the corresponding Other … References field. Inquiry REF occurrences remain separately scoped to their EQ; an arbitrary first REF is never relabeled as 1L or SY.

The first member or receiver PRV supplies PRV01 through PRV04 convenience values. First-occurrence trailing elements and later member PRVs are serialized in the matching Other … Provider Data field. PRV02 controls PRV03 meaning; PRV03 is described as taxonomy only when PRV02 is PXC.

Patient-level TRN and member/inquiry DTP are situational, not universally required. When present, TRN can support 270/271 correlation. NM108=XX identifies NM109 as an NPI, and validation checks its 10-digit format and checksum; SV and FI identifiers are not called NPIs.

EQ01 supplies service-type repetitions, EQ02 is the procedure composite, EQ03 is coverage level, and EQ04 is insurance type. EQ05/HI, PER contacts, broader requested-provider loops, and some optional guide structures are outside this projection.

The 227 fields are the current supported Smart Mapping projection, not exhaustive X279/X279A1 coverage or a lossless X12 tree. Smart Mapping de-identification protects mapped rows, validation presentation, summary models, and downloads. Raw segments mode preserves original segment rows and original identified values; it is not de-identified.

Column Definitions

Applies to the Client-Side EDI 270 eligibility-inquiry layout
ColumnEDI SourceDescription
File Name N/A (converter) Name of the input 270 EDI file. Useful when processing inquiries from multiple files.
ID N/A (converter) Converter-generated stable row identifier for the mapped inquiry occurrence. This is not an EDI-native value.
Transaction Type ST01 / ST03 (normalized) Normalized transaction type. Use 270 when ST01 is 270 and the implementation reference identifies 005010X279A1.
Record Type N/A (converter; derived from 2110C/2110D) Identifies the output row as Subscriber Inquiry or Dependent Inquiry.
Inquiry Number N/A (converter) Sequential EQ inquiry occurrence number within the applicable subscriber or dependent patient context.
Inquiry Level N/A (converter; derived from loop) Human-readable inquiry level: Subscriber or Dependent.
Inquiry Source Loop 2110C / 2110D X12 eligibility or benefit inquiry loop containing the EQ segment represented by this row.
Patient Type N/A (converter; derived from 2110C/2110D) Indicates whether the patient for this inquiry is the subscriber or a dependent.
Inquiry Summary EQ/AMT/III/REF/DTP (derived) Concise human-readable summary of the service types, procedure, coverage level, insurance type, inquiry date, and other inquiry qualifiers.
Current Hierarchical ID Active patient HL01 Hierarchical ID number for the subscriber or dependent HL associated with this inquiry row.
Parent Hierarchical ID Active patient HL02 Hierarchical ID number of the parent HL loop for the patient associated with this inquiry row.
Hierarchical Level Code Active patient HL03 Code identifying the current patient hierarchy level, normally 22 for subscriber or 23 for dependent.
Hierarchical Child Code Active patient HL04 Indicates whether subordinate HL loops follow beneath the current patient hierarchy level.
Information Source Hierarchical ID 2000A HL01 Hierarchical ID number for the information source level.
Information Receiver Hierarchical ID 2000B HL01 Hierarchical ID number for the information receiver level.
Subscriber Hierarchical ID 2000C HL01 Hierarchical ID number for the subscriber level associated with the inquiry.
Dependent Hierarchical ID 2000D HL01 Hierarchical ID number for the dependent level when the patient is a dependent.
270 Transaction Control Number ST02 Transaction set control number assigned to the 270 inquiry.
270 Implementation Reference ST03 Implementation convention reference for the inquiry. Expected production value is 005010X279A1.
Hierarchical Structure Code BHT01 Code identifying the hierarchy used by the eligibility inquiry, commonly 0022 for information source, information receiver, subscriber, and dependent.
Transaction Set Purpose Code BHT02 Purpose of the transaction set. A 270 inquiry normally uses code 13 for Request.
270 Reference Identification BHT03 Application-level reference identifier assigned by the originator to the eligibility inquiry transaction.
270 Creation Date BHT04 Date the 270 inquiry was created in the sender's business application.
270 Creation Time BHT05 Time the 270 inquiry was created in the sender's business application.
270 Transaction Type Code BHT06 Transaction type code supplied in BHT06 when present.
Functional Identifier Code GS01 Functional identifier code for the group containing the 270, normally HS for eligibility inquiry and response transactions.
Functional Group Sender Code GS02 Application sender code for the functional group containing the 270.
Functional Group Receiver Code GS03 Application receiver code for the functional group containing the 270.
Functional Group Creation Date GS04 Date the functional group containing the 270 was created.
Functional Group Creation Time GS05 Time the functional group containing the 270 was created.
270 Group Control Number GS06 Functional-group control number of the group containing the 270.
Responsible Agency Code GS07 Code identifying the standards organization responsible for the implementation guide, normally X.
270 Group Version GS08 Version, release, and implementation-guide identifier of the functional group containing the 270.
Interchange Sender Qualifier ISA05 Qualifier identifying the type of interchange sender identifier used in ISA06.
Interchange Sender ID ISA06 Interchange sender identifier. Fixed-width ISA padding should be trimmed for display and export.
Interchange Receiver Qualifier ISA07 Qualifier identifying the type of interchange receiver identifier used in ISA08.
Interchange Receiver ID ISA08 Interchange receiver identifier. Fixed-width ISA padding should be trimmed for display and export.
Interchange Date ISA09 Date the interchange containing the 270 was created.
Interchange Time ISA10 Time the interchange containing the 270 was created.
Repetition Separator ISA11 Repetition separator defined by the interchange. Used when repeated data elements such as multiple service type codes are present.
Interchange Control Version ISA12 Interchange control version number.
Interchange Control Number ISA13 Interchange control number assigned to the interchange containing the 270.
Acknowledgment Requested ISA14 Indicates whether an interchange acknowledgment is requested.
Interchange Usage Indicator ISA15 Indicates whether the interchange is production, test, or information.
Component Element Separator ISA16 Component element separator defined by the interchange.
Information Source Entity Code 2100A NM101 Entity Identifier Code for the information source, normally PR for payer.
Information Source Entity Description 2100A NM101 code translation Human-readable description of the information source entity code.
Information Source Entity Type 2100A NM102 Entity type qualifier indicating whether the information source is a person or organization.
Information Source Name 2100A NM103 Organization or last name of the payer or other information source being queried.
Information Source First Name 2100A NM104 First name of the information source when the entity is an individual.
Information Source Middle Name 2100A NM105 Middle name or initial of the information source when supplied.
Information Source Name Prefix 2100A NM106 Name prefix of the information source when supplied.
Information Source Name Suffix 2100A NM107 Name suffix of the information source when supplied.
Information Source ID Qualifier 2100A NM108 Qualifier identifying the type of information source identifier in NM109, commonly PI for payer identification.
Information Source ID 2100A NM109 Identifier of the payer or other information source being queried.
Information Receiver Entity Code 2100B NM101 Entity Identifier Code for the information receiver, such as provider, hospital, or facility.
Information Receiver Entity Description 2100B NM101 code translation Human-readable description of the information receiver entity code.
Information Receiver Entity Type 2100B NM102 Entity type qualifier indicating whether the information receiver is a person or organization.
Information Receiver Name 2100B NM103 Organization or last name of the provider or other information receiver submitting the inquiry.
Information Receiver First Name 2100B NM104 First name of the information receiver when the entity is an individual.
Information Receiver Middle Name 2100B NM105 Middle name or initial of the information receiver when supplied.
Information Receiver Name Prefix 2100B NM106 Name prefix of the information receiver when supplied.
Information Receiver Name Suffix 2100B NM107 Name suffix of the information receiver when supplied.
Information Receiver ID Qualifier 2100B NM108 Qualifier identifying the type of information receiver identifier in NM109.
Information Receiver ID 2100B NM109 Primary identifier of the provider or information receiver.
Information Receiver NPI 2100B NM109 where NM108=XX (derived) National Provider Identifier only when NM108 is XX; validation checks the 10-digit format and NPI checksum.
Information Receiver Service Provider Number 2100B NM109 where NM108=SV (derived) Service provider number when the information receiver identifier qualifier is SV.
Information Receiver Tax ID 2100B NM109 where NM108=FI (derived) Federal tax identifier when the information receiver identifier qualifier is FI.
Information Receiver Additional Identifiers 2100B REF segments All information-receiver REF qualifier and identifier pairs preserved in source order as qualifier:value entries.
Information Receiver Address Line 1 2100B N301 First address line of the information receiver.
Information Receiver Address Line 2 2100B N302 Second address line of the information receiver when supplied.
Information Receiver City 2100B N401 City of the information receiver address.
Information Receiver State 2100B N402 State or province code of the information receiver address.
Information Receiver Postal Code 2100B N403 Postal code of the information receiver address.
Information Receiver Country Code 2100B N404 Country code of the information receiver address when supplied.
Information Receiver Location Qualifier 2100B N405 Qualifier identifying the type of location identifier in N406.
Information Receiver Location ID 2100B N406 Location identifier associated with the qualifier in N405.
Information Receiver Country Subdivision 2100B N407 Country subdivision code when supplied.
Information Receiver Provider Code 2100B PRV01 Code identifying the provider role or type represented by the PRV segment.
Information Receiver Provider ID Qualifier 2100B PRV02 Qualifier identifying the provider specialty or taxonomy identifier in PRV03.
Information Receiver Provider Specialty ID 2100B PRV03 Provider specialty or taxonomy identifier supplied for the information receiver.
Information Receiver Provider State 2100B PRV04 Provider state or province value when supplied in PRV04.
Other Information Receiver Provider Data Other 2100B PRV elements Other PRV values not mapped to the dedicated information-receiver provider fields.
Subscriber Trace Type Code Situational 2000C TRN01 Trace type code when a subscriber-level TRN is supplied.
Subscriber Trace Number Situational 2000C TRN02 Reference identifier that can support 270/271 correlation when a subscriber-level TRN is supplied.
Subscriber Originating Company Identifier Situational 2000C TRN03 Originating company identifier from the subscriber-level trace segment when supplied.
Subscriber Trace Reference Identifier Situational 2000C TRN04 Additional subscriber-level trace reference when supplied.
Subscriber Entity Code 2100C NM101 Entity Identifier Code for the subscriber, normally IL for insured or subscriber.
Subscriber Entity Description 2100C NM101 code translation Human-readable description of the subscriber entity code.
Subscriber Entity Type 2100C NM102 Entity type qualifier for the subscriber.
Subscriber Last Name 2100C NM103 Subscriber last name or organization name.
Subscriber First Name 2100C NM104 Subscriber first name.
Subscriber Middle Name 2100C NM105 Subscriber middle name or initial when supplied.
Subscriber Name Prefix 2100C NM106 Subscriber name prefix when supplied.
Subscriber Name Suffix 2100C NM107 Subscriber name suffix when supplied.
Subscriber ID Qualifier 2100C NM108 Qualifier identifying the subscriber identifier in NM109, commonly MI for member identification.
Subscriber Member ID 2100C NM109 Subscriber member or policy identifier used to locate eligibility information.
Subscriber Group/Policy Number First 2100C REF02 where REF01=1L First subscriber group or policy number supplied with REF qualifier 1L.
Subscriber Social Security Number First 2100C REF02 where REF01=SY First subscriber Social Security Number supplied with REF qualifier SY. Treat as highly sensitive.
Other Subscriber References Later 1L/SY and other 2100C REF segments Later same-qualifier and other subscriber REF qualifier, REF02, and REF03 values preserved in source order.
Subscriber Address Line 1 2100C N301 First address line of the subscriber.
Subscriber Address Line 2 2100C N302 Second address line of the subscriber when supplied.
Subscriber City 2100C N401 City of the subscriber address.
Subscriber State 2100C N402 State or province code of the subscriber address.
Subscriber Postal Code 2100C N403 Postal code of the subscriber address.
Subscriber Country Code 2100C N404 Country code of the subscriber address when supplied.
Subscriber Location Qualifier 2100C N405 Qualifier identifying the type of location identifier in N406.
Subscriber Location ID 2100C N406 Location identifier associated with the qualifier in N405.
Subscriber Country Subdivision 2100C N407 Country subdivision code when supplied.
Subscriber Provider Code 2100C PRV01 Provider role or type code supplied in subscriber context.
Subscriber Provider ID Qualifier First 2100C PRV02 Qualifier controlling the meaning of the first provider identifier in PRV03.
Subscriber Provider Specialty ID First 2100C PRV03 Raw specialty or provider identifier from the first PRV; interpret it as taxonomy only when PRV02 is PXC.
Other Subscriber Provider Data First PRV trailing elements and later 2100C PRV segments Labeled PRV occurrence evidence preserving first-occurrence trailing elements and every later PRV01 through trailing source element in source order.
Subscriber Birth Date Format 2100C DMG01 Format qualifier for the subscriber date of birth.
Subscriber Birth Date 2100C DMG02 Subscriber date of birth.
Subscriber Gender Code 2100C DMG03 Subscriber gender code when supplied.
Subscriber Gender Description 2100C DMG03 code translation Human-readable description of the subscriber gender code.
Subscriber Marital Status Code 2100C DMG04 Subscriber marital status code when supplied.
Subscriber Race/Ethnicity Codes 2100C DMG05 composite Race and ethnicity information from the DMG05 composite, preserved in component order.
Subscriber Citizenship Status Code 2100C DMG06 Subscriber citizenship status code when supplied.
Subscriber Demographic Country Code 2100C DMG07 Country code associated with subscriber demographic information when supplied.
Subscriber Insured Indicator 2100C INS01 Yes/no indicator identifying insured status when the INS segment is supplied.
Subscriber Relationship Code 2100C INS02 Individual relationship code associated with the subscriber context.
Subscriber Relationship Description 2100C INS02 code translation Human-readable description of the subscriber relationship code.
Subscriber Maintenance Type Code 2100C INS03 Maintenance type code from the subscriber INS segment when supplied.
Subscriber Maintenance Reason Code 2100C INS04 Maintenance reason code from the subscriber INS segment when supplied.
Subscriber Benefit Status Code 2100C INS05 Benefit status code from the subscriber INS segment when supplied.
Subscriber Medicare Status Code 2100C INS06 composite Medicare status information from the subscriber INS06 composite when supplied.
Subscriber COBRA Qualifying Event Code 2100C INS07 COBRA qualifying event code when supplied.
Subscriber Employment Status Code 2100C INS08 Employment status code when supplied.
Subscriber Student Status Code 2100C INS09 Student status code when supplied.
Other Subscriber INS Data Other 2100C INS elements Other subscriber INS values not mapped to dedicated columns, preserved in element order.
Subscriber Plan Date Format First 2100C DTP02 where DTP01=291 Source D8 or RD8 format qualifier for the first subscriber plan-date occurrence.
Subscriber Plan Date First 2100C DTP03 where DTP01=291 Raw source value for the first subscriber plan-date occurrence.
Subscriber Card Issue Date Format First 2100C DTP02 where DTP01=102 Source D8 or RD8 format qualifier for the first subscriber identification-card issue-date occurrence.
Subscriber Card Issue Date First 2100C DTP03 where DTP01=102 Raw source value for the first subscriber identification-card issue-date occurrence.
Other Subscriber Dates Later 291/102 and other 2100C DTP segments Later same-qualifier and other subscriber DTP qualifier, D8/RD8 format, and raw value combinations preserved in source order.
Patient Trace Type Code Situational active patient TRN01 Trace type code when a subscriber or dependent TRN is supplied.
Patient Trace Number Situational active patient TRN02 Reference identifier that can support 270/271 correlation when a patient-level TRN is supplied.
Patient Originating Company Identifier Situational active patient TRN03 Originating company identifier from the patient-level trace segment when supplied.
Patient Trace Reference Identifier Situational active patient TRN04 Additional patient-level trace reference when supplied.
Patient Entity Code Active patient NM101 Entity Identifier Code for the patient, derived from the subscriber or dependent loop associated with the EQ inquiry.
Patient Entity Description Active patient NM101 code translation Human-readable description of the patient entity code.
Patient Entity Type Active patient NM102 Entity type qualifier for the patient.
Patient Last Name Active patient NM103 Patient last name or organization name.
Patient First Name Active patient NM104 Patient first name.
Patient Middle Name Active patient NM105 Patient middle name or initial when supplied.
Patient Name Prefix Active patient NM106 Patient name prefix when supplied.
Patient Name Suffix Active patient NM107 Patient name suffix when supplied.
Patient ID Qualifier Active patient NM108 Qualifier identifying the patient identifier in NM109.
Patient ID Active patient NM109 Patient member, dependent, or other identification value used in the inquiry.
Patient Group/Policy Number First active patient REF02 where REF01=1L First group or policy number associated with the active patient when supplied.
Patient Social Security Number First active patient REF02 where REF01=SY First active-patient Social Security Number supplied with qualifier SY. Treat as highly sensitive.
Other Patient References Later 1L/SY and other active patient REF segments Later same-qualifier and other active-patient REF qualifier, REF02, and REF03 values preserved in source order.
Patient Address Line 1 Active patient N301 First address line of the patient.
Patient Address Line 2 Active patient N302 Second address line of the patient when supplied.
Patient City Active patient N401 City of the patient address.
Patient State Active patient N402 State or province code of the patient address.
Patient Postal Code Active patient N403 Postal code of the patient address.
Patient Country Code Active patient N404 Country code of the patient address when supplied.
Patient Location Qualifier Active patient N405 Qualifier identifying the type of location identifier in N406.
Patient Location ID Active patient N406 Location identifier associated with the qualifier in N405.
Patient Country Subdivision Active patient N407 Country subdivision code when supplied.
Patient Provider Code Active patient PRV01 Provider role or type code supplied in the patient context.
Patient Provider ID Qualifier First active patient PRV02 Qualifier controlling the meaning of the first active-patient provider identifier in PRV03.
Patient Provider Specialty ID First active patient PRV03 Raw specialty or provider identifier from the first active-patient PRV; interpret it as taxonomy only when PRV02 is PXC.
Other Patient Provider Data First PRV trailing elements and later active patient PRV segments Labeled PRV occurrence evidence preserving first-occurrence trailing elements and every later PRV01 through trailing source element in source order.
Patient Birth Date Format Active patient DMG01 Format qualifier for the patient date of birth.
Patient Birth Date Active patient DMG02 Patient date of birth.
Patient Gender Code Active patient DMG03 Patient gender code when supplied.
Patient Gender Description Active patient DMG03 code translation Human-readable description of the patient gender code.
Patient Marital Status Code Active patient DMG04 Patient marital status code when supplied.
Patient Race/Ethnicity Codes Active patient DMG05 composite Race and ethnicity information from the patient DMG05 composite, preserved in component order.
Patient Citizenship Status Code Active patient DMG06 Patient citizenship status code when supplied.
Patient Demographic Country Code Active patient DMG07 Country code associated with patient demographic information when supplied.
Patient Insured Indicator Active patient INS01 Yes/no indicator identifying patient insured status when the INS segment is supplied.
Patient Relationship Code Active patient INS02 / derived self for subscriber Individual relationship code for the patient. Subscriber inquiries may be normalized to Self when no explicit relationship code is supplied.
Patient Relationship Description Patient relationship code translation Human-readable description of the patient's relationship to the subscriber.
Patient Maintenance Type Code Active patient INS03 Maintenance type code from the patient INS segment when supplied.
Patient Maintenance Reason Code Active patient INS04 Maintenance reason code from the patient INS segment when supplied.
Patient Benefit Status Code Active patient INS05 Benefit status code from the patient INS segment when supplied.
Patient Medicare Status Code Active patient INS06 composite Medicare status information from the patient INS06 composite when supplied.
Patient COBRA Qualifying Event Code Active patient INS07 COBRA qualifying event code when supplied.
Patient Employment Status Code Active patient INS08 Employment status code when supplied.
Patient Student Status Code Active patient INS09 Student status code when supplied.
Other Patient INS Data Other active patient INS elements Other patient INS values not mapped to dedicated columns, preserved in element order.
Patient Plan Date Format First active patient DTP02 where DTP01=291 Source D8 or RD8 format qualifier for the first active-patient plan-date occurrence.
Patient Plan Date First active patient DTP03 where DTP01=291 Raw source value for the first active-patient plan-date occurrence.
Patient Card Issue Date Format First active patient DTP02 where DTP01=102 Source D8 or RD8 format qualifier for the first active-patient identification-card issue-date occurrence.
Patient Card Issue Date First active patient DTP03 where DTP01=102 Raw source value for the first active-patient identification-card issue-date occurrence.
Other Patient Dates Later 291/102 and other active patient DTP segments Later same-qualifier and other active-patient DTP qualifier, D8/RD8 format, and raw value combinations preserved in source order.
Service Type Codes EQ01 repetitions All requested Service Type Codes in EQ01, preserving repetition order.
Service Type Descriptions EQ01 code translations Human-readable descriptions of the requested Service Type Codes, aligned to Service Type Codes.
Medical Procedure ID Qualifier EQ02-1 Qualifier identifying the code set used for the requested medical procedure or service code.
Procedure Code EQ02-2 Procedure or service code for a specific eligibility or benefit inquiry.
Procedure Modifier 1 EQ02-3 First procedure modifier associated with the requested procedure.
Procedure Modifier 2 EQ02-4 Second procedure modifier associated with the requested procedure.
Procedure Modifier 3 EQ02-5 Third procedure modifier associated with the requested procedure.
Procedure Modifier 4 EQ02-6 Fourth procedure modifier associated with the requested procedure.
Procedure Description EQ02-7 Free-form description associated with the requested procedure when supplied.
Procedure Code Range End EQ02-8 Ending procedure or service code when the EQ02 composite identifies a code range.
Coverage Level Code EQ03 Coverage level requested for the inquiry, such as individual, family, employee-only, or dependent coverage.
Coverage Level Description EQ03 code translation Human-readable description of the requested coverage level.
Insurance Type Code EQ04 Insurance type code requested for the eligibility or benefit inquiry.
Insurance Type Description EQ04 code translation Human-readable description of the requested insurance type.
Inquiry Amount Qualifier 2110C/2110D AMT01 Qualifier identifying the type of amount supplied with the inquiry, such as a spend-down amount.
Inquiry Amount Qualifier Description AMT01 code translation Human-readable description of the inquiry amount qualifier.
Inquiry Amount 2110C/2110D AMT02 Amount supplied as additional eligibility inquiry information.
Inquiry Credit/Debit Flag 2110C/2110D AMT03 Credit/debit indicator associated with the inquiry amount when supplied.
Other Inquiry Amounts Additional 2110C/2110D AMT segments Additional inquiry amount qualifier and value combinations preserved in source order.
Additional Information Code List Qualifier 2110C/2110D III01 Code List Qualifier identifying the external code set used for the additional inquiry information.
Additional Information Industry Code 2110C/2110D III02 Industry code used to identify facility type, place of service, nature of injury, or other supported inquiry context.
Additional Information Code Category 2110C/2110D III03 Code category associated with the additional inquiry information when supplied.
Additional Information Message 2110C/2110D III04 Free-form additional inquiry information when supplied.
Additional Information Quantity 2110C/2110D III05 Quantity associated with the additional inquiry information when supplied.
Additional Information Unit 2110C/2110D III06 composite Unit-of-measure information associated with the additional inquiry quantity when supplied.
Other Inquiry Additional Information Additional/remainder III data Additional III segments or elements not mapped to dedicated fields, preserved in source order.
Inquiry Reference Qualifier 2110C/2110D REF01 Qualifier identifying the inquiry-level reference identifier.
Inquiry Reference Qualifier Description REF01 code translation Human-readable description of the inquiry reference qualifier.
Inquiry Reference ID 2110C/2110D REF02 Inquiry-level reference identifier.
Inquiry Reference Description 2110C/2110D REF03 Free-form description associated with the inquiry reference when supplied.
Other Inquiry References Additional 2110C/2110D REF segments Additional inquiry-level reference qualifier and identifier pairs preserved in source order.
Inquiry Date Qualifier 2110C/2110D DTP01 Qualifier identifying the type of date or date range requested for the eligibility inquiry.
Inquiry Date Qualifier Description DTP01 code translation Human-readable description of the inquiry date qualifier.
Inquiry Date Format 2110C/2110D DTP02 Format qualifier for the inquiry date or date range.
Inquiry Date/Range 2110C/2110D DTP03 Date or date range associated with the eligibility or benefit inquiry.
Other Inquiry Dates Additional 2110C/2110D DTP segments Additional inquiry-level DTP qualifier, format, and value combinations preserved in source order.

Notes

  • A 270 requests eligibility or benefit information; the corresponding X12 response transaction is the 271.
  • EQ segments identify the service types or benefits being requested for a subscriber or dependent; one EQ creates one Smart Mapping row.
  • Some columns are normalized or generated by the converter for easier review. Source EDI values remain the authoritative inquiry details.
Parse an EDI 270 into structured fields.
Browse the other Client-Side EDI data maps and tutorials.