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18.8.39 DMI - DRG Master File Information Segment (8.13.2)

The Technical Steward for the DMI segment is Financial Management.

The DMI segment contains the DRG related basic information, for example, relative weight, etc. The DMI segment is used to send the fixed information assigned to a specific DRG.

HL7 Attribute Table - DMI - DRG Master File Information

Base Framework
Seq#Data ElementDescriptionFlagsImplementCardinalityLengthC.LENVocabularyData Type
DMI
100382Diagnostic Related Group  MAY[0..1] DiagnosisRelatedGroup (CD)
CNE

Coded with No Exceptions


200381Major Diagnostic Category
C

Condition defined for this element

MAY[0..1] MajorDiagnosticCategory (CD)
CNE

Coded with No Exceptions


302231Lower and Upper Trim Points
C

Condition defined for this element

MAY[0..1] 
NR

Numeric Range


402232Average Length of Stay
C

Condition defined for this element

=

Truncation allowed.

MAY[0..1] 5
NM

Numeric

502233Relative Weight
C

Condition defined for this element

=

Truncation allowed.

MAY[0..1] 7
NM

Numeric

Conditions/Invariants

The root for the expression is on the segment.

Seq. Referenced Elements Introduction Invariant Comment
1 ?

Seq#Data ElementDescriptionFlagsImplementCardinalityLengthC.LENVocabularyData Type
DMI
100382Diagnostic Related Group  MAY[0..1] DiagnosisRelatedGroup (CD)
CNE

Coded with No Exceptions


200381Major Diagnostic Category
C

Condition defined for this element

MAY[0..1] MajorDiagnosticCategory (CD)
CNE

Coded with No Exceptions


302231Lower and Upper Trim Points
C

Condition defined for this element

MAY[0..1] 
NR

Numeric Range


402232Average Length of Stay
C

Condition defined for this element

=

Truncation allowed.

MAY[0..1] 5
NM

Numeric

502233Relative Weight
C

Condition defined for this element

=

Truncation allowed.

MAY[0..1] 7
NM

Numeric

Base FrameworkBase Standard Profile
Seq#Data ElementDescriptionFlagsImplementCardinalityLengthC.LENVocabularyData TypeImplementVocabulary
DMI 
100382Diagnostic Related Group  MAY[0..1] DiagnosisRelatedGroup (CD)
CNE

Coded with No Exceptions

MAY 

200381Major Diagnostic Category
C

Condition defined for this element

MAY[0..1] MajorDiagnosticCategory (CD)
CNE

Coded with No Exceptions

MAY 

302231Lower and Upper Trim Points
C

Condition defined for this element

MAY[0..1] 
NR

Numeric Range

MAY

402232Average Length of Stay
C

Condition defined for this element

=

Truncation allowed.

MAY[0..1] 5
NM

Numeric

MAY
502233Relative Weight
C

Condition defined for this element

=

Truncation allowed.

MAY[0..1] 7
NM

Numeric

MAY
Base Framework Base Standard Profile
Seq# Data Element Description Flags Optionality Repetition Length C.LEN Table Data Type Optionality Table
DMI  
1 00382 Diagnostic Related Group   O      
CNE

Coded with No Exceptions

  (0055)

2 00381 Major Diagnostic Category
C

Condition defined for this element

O      
CNE

Coded with No Exceptions

  (0118)

3 02231 Lower and Upper Trim Points
C

Condition defined for this element

O      
NR

Numeric Range

   

4 02232 Average Length of Stay
C

Condition defined for this element

O     5#  
NM

Numeric

   
5 02233 Relative Weight
C

Condition defined for this element

O     7#  
NM

Numeric

   
Seq# Data Element Description Optionality Repetition Length C.LEN Table Data Type
DMI
1 00382 Diagnostic Related Group O     (0055)
CNE

Coded with No Exceptions

2 00381 Major Diagnostic Category C     (0118)
CNE

Coded with No Exceptions

3 02231 Lower and Upper Trim Points C      
NR

Numeric Range

4 02232 Average Length of Stay C     5#  
NM

Numeric

5 02233 Relative Weight C     7#  
NM

Numeric

18.8.39.1 DMI field definitions (8.13.2.0)

18.8.39.2 DMI-1 Diagnostic Related Group (CNE) 00382 (8.13.2.1)

Definition: This field contains the DRG for the transaction. Interim DRG's could be determined for an encounter. Refer to External Table 0055 - Diagnosis Related Group in Chapter 2C, Code Tables, for suggested values.

18.8.39.3 DMI-2 Major Diagnostic Category (CNE) 00381 (8.13.2.2)

Definition: This field indicates the determined Major Diagnostic Category (MDC) value. Refer to External Table 0118 - Major Diagnostic Category in Chapter 2C, Code Tables, for suggested values.

18.8.39.4 DMI-3 Lower and Upper Trim Points (NR) 02231 (8.13.2.3)

Components: ^

Definition: This field contains the lower and upper trim points as calculated for this DRG..

Example as used in Germany: The "lower trim point" is equivalent to 1/3 of the average length of stay for patients having this DRG. The "upper trim point" is equivalent to 3 times the average length of stay. It is marked as the right dotted line within the graphics below.

The following graphics provides an overview of the German usage:

The gray boxes represent the amount of cases according to the length of stay. The higher and lower 2,5% outliers (white boxes) are cut off. The average length of stay is calculated thereof and is represented by the middle dotted line. From that the lower trim point is calculated by dividing by 3, the upper trim point is the average multiplied with 3.

18.8.39.5 DMI-4 Average Length of Stay (NM) 02232 (8.13.2.4)

Definition: This field contains the average length of stay in days, calculated as the geometric mean value, allocated to the determined DRG.

18.8.39.6 DMI-5 Relative Weight (NM) 02233 (8.13.2.5)

Definition: Each DRG has its own relative weight (cost weight) which is calculated (defined) by official institutions. This value is the basis for calculating other values, e.g., the effective weight.