Resources

Rhapsody site logo

HL7 resources

HL7 PID Segment

doctor talking with patient

The HL7 PID segment is found in every type of ADT message (i.e. ADT-A01, ADT-A08, etc.) and contains 30 different fields with values ranging from patient ID number to patient sex, to address, to marital status, to citizenship. The PID segment provides important identification information about the patient and, in fact, is used as the primary means of communicating the identifying and demographic information about a patient between systems. Due to the nature of the information found in the PID segment, it is unlikely to change frequently.

Optimize resource productivity with the most trusted and flexible HL7 and API integration tools in the market

The fields in the PID segment are as follows:

SEQLENDTOPTRP/#ELEMENT NAME
14SIO Set ID – Patient ID
220CXO Patient ID (External ID)
320CXRYPatient ID (Internal ID)
420CXOYAlternate Patient ID – PID
548XPNRYPatient Name
648XPNO Mother’s Maiden Name
726TSO Date/Time of Birth
81ISO Sex
948XPNOYPatient Alias
101ISO Race
11106XADOYPatient Address
124ISB Country Code
1340XTNOYPhone Number – Home
1440XTNOYPhone Number – Business
1560CEO Primary Language
161ISO Marital Status
173ISO Religion
1820CXO Patient Account Number
1916STO SSN Number – Patient
2025DLNO Driver’s License Number – Patient
2120CXOYMother’s Identifier
223ISO Ethnic Group
2360STO Birth Place
242IDO Multiple Birth Indicator
252NMO Birth Order
264ISOYCitizenship
2760CEO Veterans Military Status
2880CEO Nationality
2926TSO Patient Death Date and Time
301IDO Patient Death Indicator

*Note: For the complete HL7 Standard, please go to the HL7 organization website.

The HL7 standard allows for several different types of patient identification numbers in the first four fields of the PID segment. The differences are described below:

  • PID-1: Set ID – Patient ID – a number to identify the transaction
  • PID-2: Patient ID (External ID) – the patient identifier number used by one or more outside institutions (i.e. a physician’s office that is referring the patient)
  • PID-3: Patient ID (Internal ID) – the primary, unique patient identifier number used by the facility
  • PID-4: Alternate Patient ID – an alternate, additional, temporary or pending patient identification number

In HL7 pipe and hat format, the PID segment (shown in red) for an ADT-A01 message would look like this:


MSH|^~&|ADT1|MCM|LABADT|MCM|198808181126|SECURITY|ADT^A01|MSG00001-|P|2.3

EVN|A01|198808181123

PID|||PATID1234^5^M11||JONES^WILLIAM^A^III||19610615|M-||C|1200 N ELM

STREET^^GREENSBORO^NC^27401-1020|GL|(91-9)379-1212|(919)271-

3434||S||PATID12345001^2^M10|123456789|9-87654^NC

NK1|1|JONES^BARBARA^K|WIFE||||||NK

PV1|1|I|2000^2012^01||||004777^LEBAUER^SIDNEY^J.|||SUR||-||ADM|A0-

AL1|1||^Penicillin||Produces hives

AL1|2||^Cat dander|Respiratory distress

Register for an upcoming HL7: First Steps training class

For further reading, check out these resources:

You might also like

HL7 resources

HL7 Data Types

HL7 data types define the kind of data included in a field used in the HL7 message structure. Examples include a string, text, timestamp, address, or coded element.

Read more >

HL7 resources

RIM-Reference Information Model

The HL7 Reference Information Model (RIM) represents a static model of healthcare workflows as viewed by the HL7 standards development group.

Read more >

HL7 resources

Minimum Layer Protocol – MLP

MLP is how an application should wrap an HL7 message to ensure HL7 compliant applications know where a message starts and stops, and where the next message begins.

Read more >