This document decodes an HL7 Version 2.5.1 message containing patient information such as name, date of birth, address, insurance information, next of kin, attending physician, and patient observations like height and weight. Key segments and fields are identified and described.

1. Name: Carmen Alcivar
Week 3 Homework Assignment
Decode the following HL7 Version 2.5.1 Message
MSH|^~&|REGADT|MCM|IFENG||200301061000||ADT^A05^ADT_A05|000001|P|2.5.1|||
 MSH: Message header, must begin every message, segment identifier
 |- Field Separator
 ^~&|Encoding characters, component separator, repetition separator, escape character,
subcomponent separator
 REGADT: Sending application. preadmit notification – non admitted patient. The REGADT system
supports entry of two insurance plans, one guarantor, and one diagnosis.
 MCM: Sending facility. this notification was recorded in the MCM system
 IFENG: Receiving application. This was sent to the interface engine on the date and time below
 Skip 1, receiving facility
 200301061000: date and time of message
 |Skip 1, security
 ADT^A05^ADT_A05: Message type, Admit discharge transfer:
o ADT: Readmit notification
o A05: Event A05= non-admitted patient.
o ADT_A05: Admit discharge transfer
 000001: - message control ID.
 P: Processing ID,
 2.5.1 : version
 |||Skip 2: Sequence number and Continuation pointer
EVN|A05|200301061000|200301101400|01||200301061000
 EVN: event type segment
 A05: pre-admit a patient
 200301061000: recorded date and time
 200301101400: Date/Time Planned Event
 01: event reason, Patient request
 ||Skip 1 operator ID
 200301061000:date and time event occurred

2. PID|1||191919^^^GENHOS||MASSIE^JAMES^A||19560129|M|||171
ZOBERLEIN^^ISHPEMING^MI^49849^""^||(900)485-5344|(900)485-
5344||S||10199925^^^GENHOS^AN|371-66-9256||
 PID| Set Id- Patient Identification segment
 1|: This field contains the number that identifies this transaction. For the first occurrence of the
segment, the sequence number shall be one, for the second occurrence, the sequence number shall
be two, etc.
 Skip 1 : patient ID
 191919^^^GENHOS : Patient Identifier list
o 191919: patient ID number
o Skip 2: heck Digit (ST) , Check Digit Scheme (ID)
o GENHOS : Assigning authority
 Skip 1 : Alternate Patient ID-PID
 MASSIE^JAMES^A: Patie t’s a e
o MASSIE: Family name
o JAMES: Given name
o A: Second and Further Given Names or Initials Thereof
 Skip 1: Mothert’s a e aide a e
 19560129: date/time of birth
 M: Administrative sex- Male
 Skip 2: alias and race
 171 ZOBERLEIN ^^ISHPEMING^MI^49849^""^ : Patient Address :
o 171 ZOBERLEIN : street address
o Skip 2 : Other Designation and City
o ISHPEMING^MI^49849^""^ St
o ISHPEMING: city
o MI, state or province
o 49849 Zip or postal code
o "":country Id
 Skip 1: Country code
 (900)485-5344 : Phone number home
 (900)485-5344 : Phone number business
 Skip1
 S: Marital Status – Single
 Skip 1: Religion
 10199925^^^GENHOS^AN: Patient Account number
o 10199925: patient ID number
o Skip 2 : heck Digit (ST)> ^ <Check Digit Scheme (ID

3. o GENHOS: Assigning authority
o AN: Identifier Type Code (ID)
 371-66-9256: Social Security Number Patient
 Skip 1 Driver's License Number - Patient
NK1|1|MASSIE^ELLEN|SPOUSE|171 ZOBERLEIN^^ISHPEMING^MI^49849^""^|(900)485-
5344|(900)545-1234~(900)545-1200|EC^EMERGENCY CONTACT
 NK1: Next of Kin/Associated Parties
 1: Set Id-NK1
 MASSIE^ELLEN: Name
o MASSIE : Family name (FN)
o ELLEN: Given name (ST)
 SPOUSE: Relationship
 171 ZOBERLEIN^^ISHPEMING^MI^49849^""^|: Address
o 171 ZOBERLEIN : Street Address
o Skip 1: Other Designation (ST)
o ISHPEMING: City (ST)
o MI (State or Province (ST)
o 49849: Zip of Postal Code
o "" : Country ID
 (900)485-5344: Phone Number
 (900)545-1234~ 900)545-1200:Business Phone Number
 EC^EMERGENCY CONTACT : Contact Role
o EC : Identifier (ST), Employer Emergency contact
o EMERGENCY CONTACT : Text (ST)
PV1||O|||||0148^ADDISON^JAMES|0148^ADDISON^JAMES|0148^ADDISON^JAMES|AMB|||||||0
148^ADDISON^JAMES||1|
 PV1: Patient visit segment-first occurrence
 Skip 1: Set ID
 O: Patient Class: Outpatient
 Skip4: Assigned Patient Location, Admission type, Preadmit Number, Prior Patient Location
 0148^ADDISON^JAMES:Attending Doctor
o 0148: Id Number (ST)
o ADDISON: Family Name (FN)
o JAMES: Given Name (ST)
 0148^ADDISON^JAMES: Referring Doctor
o 0148: Id Number (ST)
o ADDISON: Family Name (FN)
o JAMES: Given Name (ST)

4.  0148^ADDISON^JAMES Referring Doctor
o 0148: Id Number (ST)
o ADDISON: Family Name (FN)
o JAMES: Given Name (ST)
 AMB: Hospital Service
 ||||||| Skip 6 : Temporary Location, Preadmit Test Indicator, Re-Admission Indicator, Admit Source,
Ambulatory Status, VIP Indicator
 0148^ADDISON^JAMES: Admitting Doctor
o 0148: Id Number (ST)
o ADDISON: Family Name (FN)
o JAMES: Given Name (ST)
 Skip 1: Patient Type
 1: visit number
OBX|1|ST|1010.1^BODY WEIGHT||62|kg|||||F
 OBX: Observation/Result Segment
 1: set ID, This field contains the sequence number so in this case this is the number of the sequence.
 ST: Value Type String Data
 1010.1^BODY WEIGHT: Observation Identifier
o 1010.1:Identifier ST
o BODY WEIGHT: Text ST
 Skip 1: Observation subID
 62: Observation value
 Kg: Units
 ||||| skip 4:References Range, Abnormal Flags, Probability, Nature of Abnormal Test,
 F : Observation Result Status: Final results; Can only be changed with a corrected result.
OBX|2|ST|1010.1^HEIGHT||190|cm|||||F
 OBX: Set ID, Observation/Result Segment
 2: Sequence number. Observation 2
 ST: Value Type String Data
 1010.1^HEIGHT: Observation Identifier
o 1010.1: Identifier ST
o HEIGHT: Text ST

 Skip 1: Observation Sub-ID
 190: Observation value
 Cm: units
 ||||| skip 4: References Range, Abnormal Flags, Probability, Nature of Abnormal Test,
 F: Observation Result Status: Final results; Can only be changed with a corrected result.