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HITSP/C154: HITSP Data Dictionary Component


1. Introduction

1.1 Overview

This specification is a library of the HITSP defined data elements that are used for mapping to data elements from the HITSP selected standards. It defines data elements that have been constrained or used in other HITSP documents (such as Components, Transactions, Transaction Packages) and facilitates the consistent use of these data elements across the various HITSP selected standards. It does not attempt to specify all the data elements for the standards selected by HITSP (i.e. only those constrained). The Data Elements are organized into modules to simplify navigation, such as Medications, Advance Directives, Immunizations, etc.

This specification does not enable the use of the data elements; this is accomplished by a HITSP construct that is based upon a specific standard (such as HL7, X12N, NCPDP, etc.). In order to facilitate harmonization of value sets across the various selected standards, this specification may define value set constraints. When this does not occur, it is because the data element does not require a value set or a harmonized value set was not determined. These value sets in turn reference standard terminologies in HITSP/C80 Clinical Document Message Terminology. HITSP/C154 does not define any other constraints (such as optionality) as those constraints are identified in the HITSP construct that enables the data element.

There are many ways that various HITSP documents may constrain a data element, some examples include:

  • Specifying the Optionality of a data element, such as required, required if known or conditional
  • Selecting value sets for the data element (which may be the same as HITSP/C154 or additional constraints)
  • Refining the information that may be provided in that data element when it is used in an exchange


HITSP/TN903 Data Architecture provides a more detailed explanation about the use of data elements (and other data architecture concepts) within HITSP.

1.2 Copyright Permissions

© This material may be copied without permission from ANSI only if and to the extent that the text is not altered in any fashion and ANSI's copyright is clearly noted.

Certain materials contained in this Component are reproduced from HL7 Implementation Guide: CDA Release 2 - Continuity of Care Document (CCD) with permission of Health Level Seven, Inc. No part of the material may be copied or reproduced in any form outside of the Interoperability Specification documents, including an electronic retrieval system, or made available on the Internet without the prior written permission of Health Level Seven, Inc. Copies of standards included in this Component may be purchased from the Health Level Seven, Inc. Material drawn from these standards is credited where used.

1.3 Reference Documents

A list of key reference documents and background material is provided in the table below. HITSP-maintained reference documents can be retrieved from the HITSP Web Site

Reference Document Document Description
HITSP Acronyms List Exit Disclaimer [publicaa.ansi.org] Lists and defines the acronyms used in this document
HITSP Glossary Exit Disclaimer [publicaa.ansi.org] Provides definitions for relevant terms used by HITSP documents
TN901 - Clinical Documents TN901 is a reference document that provides the overall context for use of the HITSP Care Management and Health Records constructs
TN903 - Data Architecture TN903 is a reference document that provides the overall context for use of the HITSP Data Architecture constructs
TN904 - Harmonization Framework and Exchange Architecture TN904 is a reference document that provides the overall context for use of the HITSP Harmonization Framework and Exchange Architecture

1.4 Conformance

This section describes the conformance criteria, which are objective statements of requirements that can be used to determine if a specific behavior, function, interface, or code set has been implemented correctly.

1.4.1 Conformance Criteria

In order to claim conformance to this construct specification, an implementation must satisfy all the requirements and mandatory statements listed in this specification, the associated HITSP Interoperability Specification or Capability, its associated construct specifications, as well as conformance criteria from the selected base and composite standards. A conformant system must also implement all of the required interfaces within the scope, subset or implementation option that is selected from the associated Interoperability Specification.

Claims of conformance may only be made for the overall HITSP Interoperability Specification or Capability with which this construct is associated.

1.4.2 Conformance Scoping, Subsetting, and Options

A HITSP Interoperability Specification or Capability must be implemented in its entirety for an implementation to claim conformance to the specification. HITSP may define the permissibility for interface scoping, subsetting or implementation options by which the specification may be implemented in a limited manner. Such scoping, subsetting and options may extend to associated constructs, such as this construct. This construct must implement all requirements within the selected scope, subset or options as defined in the associated Interoperability Specification or Capability to claim conformance.

1.5 Document Conventions

1.5.1 Key Words

The key words SHALL, SHALL NOT, SHOULD, SHOULD NOT and MAY are to be interpreted as described in RFC 2119 and will appear when used in that fashion in this TYPEFACE.

The key words REQUIRED and OPTIONAL are also to be interpreted as described in RFC 2119 when they are used to indicate the optionality of components used in an exchange.

1.5.2 Constraints

Constraints in this document will appear as shown below.

C83-[DE-7.04-1] The problem type SHALL be coded as specified in HITSP/C80 section 2.2.1.1.4.1.2 Problem Type. The first portion identifies the type of artifact being constrained. The second portion is the identifier for that artifact, and the final portion is the sequence number of the constraint on that artifact within this document. Constraints specific to CDA usage will contain the string CDA before the final number

2.1 Context Overview

This section provides an introduction to the concepts used in describing the data elements used in HITSP specifications. The HITSP Data Elements in this document are organized into modules described in Table 2-1 below. The module identifier number is given in the first column, followed by the name and definition of what appears in that module. These modules are described in more detail below in Section 2.1.2 HITSP Data Elements.

Table 2-1 Module Categories

Number Module name Definition
1 Person Information This includes name, address, contact information, personal identification information, ethnic and racial affiliation and marital status of a person
2 Language This includes the language spoken by subject
3 Support This includes the patient's sources of support, such as immediate family, relatives and/or guardians. This includes next of kin, caregivers, support organizations, and key contacts relative to healthcare decisions. Support providers may include providers of healthcare related services, such as a personally controlled health record, or registry of emergency contacts
4 Healthcare Providers This includes a list of the healthcare providers and organizations that provide or have provided care to the patient
5 Insurance Providers and Players This includes data about the organizations or individuals who may pay for a patient's healthcare, and the relationships, demographics and identifiers of those individuals with respect to the payer. Such organizations or individuals may be health insurance plans, other payers, guarantors, parties with financial responsibility, some combination of payers or the patient directly
6 Allergies and Drug Sensitivities This includes the allergy or intolerance conditions, severity and associated adverse reactions suffered by the patient
7 Conditions This includes relevant clinical problems and conditions for which the patient is receiving care, including information about onset, severity, and providers treating the condition. Conditions are broader than, but include diagnoses
8 Medications This includes the patient's prescription or non-prescription medications and medication history, and may include prescriptions, fulfillments and medication administration activities
9 Pregnancy This includes information about the patient's current and past pregnancy status
10 Information Source This includes information about the author or creator of the information contained within the exchange
12 Advanced Directive This includes data defining the patient.s advance directives and supporting documentation. It can include information about the existence of living wills, healthcare proxies, and CPR and resuscitation status
13 Immunizations This includes data describing the patient's immunization history
14 Vital Signs This includes data about the patient's vital signs
15 Test Results This includes data about current and historical test results from laboratory or other diagnostic testing performed on the patient
16 Encounter This includes data describing the interactions between the patient and clinicians. Interaction includes both in-person and non-in-person encounters such as telephone and email
17 Procedures This includes data describing procedures performed on a patient
18 Family History This includes data defining the patient's genetic relatives in terms of possible or relevant health risk factors that have a potential impact on the patient's health
19 Social History This includes data defining the patient's occupational, personal (e.g. lifestyle), social, and environmental history that have a potential impact on the patient's health
20 Medical Equipment This includes implanted and external medical devices and equipment that a patient's health status depends on, as well as any pertinent equipment or device history
21 Functional Status This includes data defining the patient.s functional status with respect to, Ambulatory ability, Mental status or competency, Activities of Daily Living, including bathing, dressing, feeding, grooming, Home/living situation having an effect on the health status of the patient, Ability to care for self
22 Plan of Care This includes data defining prospective or intended orders, interventions, encounters, services, and procedures for the patient
23 Clinical Research This includes data elements and common identifier variables that pertain to research-specific workflow
24 Order This includes data describing orders for a patient
25 Specimen This includes data describing the specimen information associated with an order and the results

The HITSP Data Dictionary defines the library of Data Elements that may be used by HITSP constructs in standards based exchanges. The Data Elements are organized into modules to simplify navigation, such as Medications, Advance Directives, Immunizations, etc.


2.1.2.1 Personal Information

The personal information module contains the name, address, contact information, personal identification information, ethnic and racial affiliation and marital status of the person. See the HL7 Continuity of Care Document Section 2.5 for constraints applicable to this module.

2.1.2.2 Language Spoken

This module indicates the language spoken by the subject.

2.1.2.3 Support

This module contains the patient's sources of support, such as immediate family, relatives and guardians. Support information also includes next of kin, caregivers and support organizations. Support providers may include providers of healthcare related services, such as a personally controlled health record, or registry of emergency contacts.

2.1.2.4 Healthcare Provider

This module contains the healthcare providers involved in the current or pertinent historical care of the patient.

2.1.2.5 Insurance Provider

This insurance provider module contains data about the entities or other individuals who may pay for a patient's healthcare. Such entities or individuals may be health insurance plans, other payers, and guarantors, parties with financial responsibility, some combination of payers or the patient directly. This module is used to define which entity or combination of entities has any financial responsibility for a patient's care.

2.1.2.6 Allergy/Drug Sensitivity

This module contains the allergy or intolerance conditions and the associated adverse reactions suffered by the patient.

2.1.2.7 Condition

This module contains relevant clinical problems. See the HL7 Continuity of Care Document Section 3.5 for constraints applicable to this module.

2.1.2.8 Medication

This module contains a patient's prescription or non-prescription medications and pertinent medication history. See the HL7 Continuity of Care Document Section 3.9 for constraints applicable to this module.

2.1.2.9 Pregnancy

This module contains information about the patient's current and historical pregnancy status.

2.1.2.10 Information Source

This module describes information about the original author of the exchange and reference to source materials that can be provided in an exchange.

2.1.2.11 General Purpose Data Elements

This collection of data elements applies to a variety of exchanges.

2.1.2.12 Advance Directive

This module contains data describing the patient's Advance Directive and any reference to supporting documentation. This section contains data such as the existence of living wills, healthcare proxies and CPR and resuscitation status. The custodian of these documents may be described.

2.1.2.13 Immunization

This module contains data describing the patient's immunization history.

2.1.2.14 Vital Sign

This module contains current and relevant historical vital signs for the patient. Vital Signs are a subset of Results (see Section 2.1.2.15), but are reported in this section to follow clinical conventions. The differentiation between Vital Signs and Results varies by clinical context. Common examples of vital signs include temperature, height, weight, blood pressure, etc. However, some clinical contexts may alter these common vital signs, for example in neonatology "height" may be replaced by "crown-to-rump" measurement.

2.1.2.15 Result

This module contains current and relevant historical result observations for the patient. The scope of "observations" is broad with the exception of "vital signs" which are contained in the Vital Signs sections (see Section 2.1.2.14 above).

2.1.2.16 Encounter

This module contains data describing the interactions between the patient and clinicians. Interaction includes both in-person and non-in-person encounters such as telephone and email communication.

2.1.2.17 Procedure

This module contains a coded entry indicating a procedure performed on a patient.

2.1.2.18 Family History

This module contains data defining the patient's genetic risk factors.

2.1.2.19 Social History

The text adapted from HL7 CDA Release 2 - Continuity of Care Document (CCD), Section 3.7 Social History, begins here:

This module contains data defining the patient's occupational, personal (e.g. lifestyle), social, and environmental history and health risk factors, as well as administrative data such as marital status, race, ethnicity and religious affiliation.

The text adapted from HL7 CDA Release 2 - Continuity of Care Document (CCD), Section 3.7 Social History, ends here.

Table 2-39 Social History Data Mapping Table - Definitions: Social History Event Entry

2.1.2.20 Medical Equipment

Medical Equipment includes implanted and external medical devices and equipment that a patient's health status depends on, as well as any pertinent equipment or device history.

2.1.2.21 Functional Status

The functional status module contains data defining the patient's functional status with respect to Ambulatory ability, Mental status or competency, Activities of Daily Living, including bathing, dressing, feeding, grooming, Home/living situation having an effect on the health status of the patient or their Ability to care for themselves.

2.1.2.22 Plan of Care

The plan of care contains data defining prospective or intended orders, interventions, encounters, services, and procedures for the patient.

2.1.2.23 Clinical Research

The clinical research module contains data defining data elements and common identifier variables that pertain to research-specific workflow.

2.1.2.24 Order

This module contains data defining the patient's order.

2.1.2.25 Specimen

This module contains data defining the Specimen related to an Order.

Download an Excel spreadsheet containing all C154 Data Element Information with values.
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SortData Elements
Identifier Sort
Definition Sort
Constraints Sort
Contact Phone/Email/URL 3.05 A telephone number (voice or fax), e-mail address, or other locator for the contact individual or organization providing support to the individual for which this exchange is produced. One data element is used to describe phone numbers, pagers, e-mail addresses and URLs
Contact Name 3.06 The name of the individual or organization providing support to the individual for which this exchange is
Date Range 4.01 The period over which this provider has provided healthcare services to the patient
Provider Role Coded 4.02 Provider role uses a coded value to classify providers according to the role they play in the healthcare of the patient and comes from a very limited set of values. The purpose of this data element is to express the information often required during patient registration, identifying the patient's primary care provider, the referring physician or other consultant involved in the care of the patient C154-[DE-4.02-1] Provider role SHALL be coded as specified in HITSP/C80 Section 2.2.3.8.1 Provider Role
Provider Role Free Text 4.03 This unstructured text classifies providers according to the role they play in the healthcare of the patient
Provider Type 4.04 Provider type classifies providers according to the type of license or accreditation they hold (e.g. physician, dentist, pharmacist, etc.) or the service they provide C154-[DE-4.04-1] Provider type SHALL be coded as specified in HITSP/C80 Section 2.2.3.8.2 Provider Type
Provider Address 4.05 The mailing address to which written correspondence to this provider should be directed C154-[DE-4.05-1] The state part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.1 State C154-[DE-4.05-2] The postal code part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.2 Postal Code C154-[DE-4.05-3] The country part of an address SHALL be recorded using HITSP/C80 Section 2.2.1.1.3 Country
Provider Phone/Email/URL 4.06 A telephone number (voice or fax), e-mail address or other locator for a resource mediated by telecommunication equipment. One object class is used to describe phone numbers, pagers, e-mail addresses, and URLs. One or more of these contact numbers can be designated as the preferred methods of contact; temporary items can be entered for use on specific effective dates
Provider Name 4.07 The name of the provider
Provider's Organization Name 4.08 The name of the organization with which the provider is affiliated. While providers may be affiliated with more than one organization, this should be the organization affiliated with this person's care
Provider's Patient ID 4.09 The identifier used by this provider to identify the patient's medical record
National Provider ID 4.10 National Provider Identifier or NPI is a unique identification number issued to healthcare providers in the United States
Group Number 5.01 The policy or group contract number identifying the contract between a health plan sponsor and the health plan. This is not a number that uniquely identifies either the subscriber or person covered by the health insurance
Health Insurance Type 5.02 The type of health plan covering the individual, e.g., an HMO, PPO, POS, Medicare Part A/B, etc C154-[DE-5.02-1] The Health Insurance Type SHALL be coded as specified in HITSP/C80 Section 2.2.2.1 Health Insurance Type
Health Plan Insurance Information Source ID 5.03 The coded identifier of the payer corresponding to the Health Plan Information Source Name. It is important to note that Health Plan Information Source Name and ID are not synonymous with Health Plan Name or the Health Plan Identifier (when/if health plans are enumerated under HIPAA)
Health Plan Insurance Information Source Address 5.04 The official mailing address to which written correspondence is to be directed C154-[DE-5.04-1] The state part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.1 State C154-[DE-5.042] The postal code part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.2 Postal Code C154-[DE-5.04-3] The country part of an address SHALL be recorded using HITSP/C80 Section 2.2.1.1.3 Country
Health Plan Insurance Information Source Phone/Email/URL 5.05 A telephone number (voice or fax), e-mail address or other locator for a resource mediated by telecommunication equipment. One object class is used to describe phone numbers, pagers, e-mail addresses, and URLs. One or more of these contact numbers can be designated as the preferred method(s) of contact; temporary items can be entered for use on specific effective dates
Health Plan Insurance Information Source Name 5.06 The name of the entity that is the source of information about the health insurance. This name is not synonymous with a Health Plan Name or a Health Plan Identifier (when/if health plans are enumerated under HIPAA). In the context of the X12N 271 Transaction, an information source could be the payer, a Third Party Administrator (TPA), a health plan sponsor, or a gateway provider
Health Plan Coverage Dates 5.07 The beginning and end dates of the health plan coverage of the individual. These dates may not apply equally to all benefits included in the health plan coverage. Some benefits may have waiting periods for coverage to be effective which results in a different benefit begin date. The purpose of providing this information in the registration/medication summary is to better inform patients about their health coverage. Providers should use the applicable standard transactions required under regulation to determine patient eligibility for benefits
Member ID 5.08 The identifier assigned by the health plan to the patient who is covered by the health plan. When the patient is the actual member or health plan contract holder (the true subscriber) and not a dependent of the subscriber, it is the same as the Subscriber ID. A related spouse, child, or dependent may not have a unique identification number of their own
Patient Relationship to Subscriber 5.09 Specifies only if patient is the subscriber or dependent within the context of the specified health plan C154-[DE-5.09-1] The Patient Relationship to Subscriber SHALL be coded as specified in HITSP/C80 Section 2.2.2.2 Subscriber Relationship
Patient Address 5.10 The mailing address of the patient who is a member or enrollee of health plan as recorded by the health plan. This address may be the same as or different from the true subscriber of the health plan. The mailing address used by the health plan may also differ from any other address otherwise used by the patient C154-[DE-5.10-1] The state part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.1 State C154-[DE-5.10-2] The postal code part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.2 Postal Code C154-[DE-5.10-3] The country part of an address SHALL be recorded using HITSP/C80 Section 2.2.1.1.3 Country
Patient Phone/Email/URL 5.11 A telephone number (voice or fax), e-mail address or other locator for a resource mediated by telecommunication equipment. One object class is used to describe phone numbers, pagers, e-mail addresses and URLs. One or more of these contact numbers can be designated as the preferred method(s) of contact; temporary items can be entered for use on specific effective dates
Patient Name 5.12 The name of the actual patient who is a member or enrollee of a health plan as entered into the eligibility system of the health plan. The patient may be the true subscriber or any related spouse, child, or dependent
Patient Date of Birth 5.13 The date of birth of the patient as entered into the eligibility system of the health plan
Financial Responsibility Party Type 5.14 The type of party that has responsibility for all or a portion of the patient's healthcare; includes health insurance, the patient directly, a guardian or other guarantor or other third party that is not a health insurance plan
Subscriber ID 5.15 The identifier assigned by the health plan to the actual member or health plan contract holder (the true subscriber) entered into the eligibility system of the health plan
Subscriber Address 5.16 The official mailing address of the actual member or health plan contract holder (the true subscriber) as entered into the eligibility system of the health plan to which written correspondence is to be directed C154-[DE-5.16-1] The state part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.1 State C154-[DE-5.16-2] The postal code part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.2 Postal Code C154-[DE-5.16-3] The country part of an address SHALL be recorded using HITSP/C80 Section 2.2.1.1.3 Country
Subscriber Phone/Email/URL 5.17 A telephone number (voice or fax), e-mail address or other locator for a resource mediated by telecommunication equipment. One object class is used to describe phone numbers, pagers, e-mail addresses and URLs. One or more of these contact numbers can be designated as the preferred method(s) of contact; temporary items can be entered for use on specific effective dates
Subscriber Name 5.18 The name of the actual member or health plan contract holder (the true subscriber) as entered into the eligibility system of the health plan. This is not the name of a related spouse, child, or dependent
Subscriber Date of Birth 5.19 The date of birth of the actual member or health plan contract holder (the true subscriber) as entered into the eligibility system of the health plan
Effective Date of Financial Responsibility 5.20 The time span over which the Financial Responsibility Party is responsible for the payment of the patient's healthcare
Financial Responsibility Party Address 5.21 The official mailing address of the Financial Responsibility Party to which written correspondence is to be directed C154-[DE-5.21-1] The state part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.1 State C154-[DE-5.21-2] The postal code part of an address in the United States SHALL be recorded using HITSP/C80 Section 2.2.1.1.2 Postal Code C154-[DE-5.21-3] The country part of an address SHALL be recorded using HITSP/C80 Section 2.2.1.1.3 Country
Financial Responsibility Party Phone/Email/URL 5.22 A telephone number (voice or fax), e-mail address, or other locator for a resource mediated by telecommunication equipment. One object class is used to describe phone numbers, pagers, e-mail addresses, and URLs. One or more of these contact numbers can be designated as the preferred method(s) of contact; temporary items can be entered for use on specific effective dates
Financial Responsibility Party Name 5.23 The name of the Financially Responsible Party
Health Plan Name 5.24 The name of the specific health insurance product as specified by the insurance company offering the healthcare insurance. The HIPAA legislation requires the Secretary of HHS to establish unique health plan identifiers. To date, the Secretary of HHS has not promulgated plans for regulations specifying the enumeration and identification of health plans
Insurance Company Name 5.25 The name of the insurance company. There may be multiple names for the same insurance company. The first name listed is assumed to be the legal name
Advanced Beneficiary Notice 5.26 The status of the patient's or the patient's representative's consent for responsibility to pay for potentially uninsured services. This element indicates (a) whether the associated diagnosis codes for the service are subject to medical necessity procedures, (b) whether, for this type of service, the patient has been informed that they may be responsible for payment for the service, and (c) whether the patient agrees to be billed for this service
Adverse Event Date 6.01 This is a date that expresses when this particular allergy or intolerance was known to be active for the patient
Adverse Event Type 6.02 Describes the type of product and intolerance suffered by the patient. The type of product shall be classified with respect to whether the adverse event occurs in relationship with a medication, food, or environmental or other product. The adverse event should also be classified more specifically as an allergy, non-allergy intolerance, or just adverse reaction if that level of detail is not known
Product Free-Text 6.03 This is the name or other description of the product or agent that causes the intolerance
Product Coded 6.04 This value is a code describing the product C154-[DE-6.04-1] Food and non-medicinal allergies/Sensitivities SHALL be coded as specified in HITSP/C80 Section 2.2.3.3.11 Ingredient Name C154-[DE-6.04-2] Allergies/Drug Sensitivity to a class of medication SHALL be coded as specified in HITSP/C80 Section 2.2.3.3.9 Medication Drug Class Note: HITSP/C80 Section 2.2.3.3.9 allows for more than one NDF-RT classification concept to accurately represent drug class for many medications. C154-[DE-6.04-3] Allergies/Drug Sensitivity to a specific medication SHALL be coded as specified in HITSP/C80 Section 2.2.3.3.7 Medication Brand Name or HITSP/C80 Section 2.2.3.3.8 Medication Clinical Drug Names
Reaction Free-Text 6.05 This is the reaction that may be caused by the product or agent
Reaction Coded 6.06 This value is a code describing the reaction C154-[DE-6.06-1] The reaction SHALL be coded as specified in HITSP/C80 Section 2.2.3.4.1 Allergy/Adverse Event (Reaction)
Severity Free-Text 6.07 This is a description of the level of severity of the allergy or intolerance
Severity Coded 6.08 This value is a code describing the level severity of the allergy or intolerance C154-[DE-6.08-1] The terminology used for severity of the adverse event SHALL be coded as specified in HITSP/C80 Section 2.2.3.4.3 Allergy/Adverse Event Severity
Problem Date 7.01 This is the range of time of which the problem was active for the patient or subject
Problem Type 7.02 This is a fixed value indicating the level of medical judgment used to determine the existence of a problem C154-[DE-7.02-1] The problem type SHALL be coded as specified in HITSP/C80 Section 2.2.3.1.2 Problem Type
Problem Name 7.03 This is a text description of the problem suffered
Problem Code 7.04 This value is a code describing the problem according to a specific vocabulary of problems C154-[DE-7.04-1] The problem SHALL be coded as specified in HITSP/C80 Section 2.2.3.1.1 Problem
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