HL7 PID (Patient Identification) Segment

PID: Patient identification segment

The PID segment is used by all applications as the primary means of communicating patient identification information. This segment contains permanent patient identifying and demographic information that, for the most part, is not likely to change frequently.


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. 

SEQ	LENGTH	DataType	Optional/Required	RPT / #	TBL #	NAME
PID.1	4	SI	O	1		Set ID - PID
PID.2	20	CX	B	1		Patient ID
PID.3	20	CX	R	*		Patient Identifier List
PID.4	20	CX	B	*		Alternate Patient ID - PID
PID.5	48	XPN	R	*		Patient Name
PID.6	48	XPN	O	*		Mother s Maiden Name
PID.7	26	TS	O	1		Date/Time Of Birth
PID.8	1	IS	O	1	0001	Sex
PID.9	48	XPN	O	*		Patient Alias
PID.10	80	CE	O	*		Race
PID.11	106	XAD	O	*		Patient Address
PID.12	4	IS	B	1	0289	County Code
PID.13	40	XTN	O	*		Phone Number - Home
PID.14	40	XTN	O	*		Phone Number - Business
PID.15	60	CE	O	1		Primary Language
PID.16	80	CE	O	1		Marital Status
PID.17	80	CE	O	1		Religion
PID.18	20	CX	O	1		Patient Account Number
PID.19	16	ST	B	1		SSN Number - Patient
PID.20	25	DLN	O	1		Driver's License Number - Patient
PID.21	20	CX	O	*		Mother's Identifier
PID.22	80	CE	O	*		Ethnic Group
PID.23	60	ST	O	1		Birth Place
PID.24	1	ID	O	1	0136	Multiple Birth Indicator
PID.25	2	NM	O	1		Birth Order
PID.26	80	CE	O	*		Citizenship
PID.27	60	CE	O	1		Veterans Military Status
PID.28	80	CE	O	1		Nationality
PID.29	26	TS	O	1		Patient Death Date and Time
PID.30	1	ID	O	1	0136	Patient Death Indicator

Reference:
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