This segment may only be required if a state concludes it must use the K3 to meet an emergency legislative requirement AND the administering state agency or other state organization has contacted the X12N workgroup, requested a review of the K3 data requirement to ensure there is not an existing method within the implementation guide to meet this requirement, and X12N determines that there is no method to meet the requirement. Only then may the state require the temporary use of the K3 to meet the requirement. X12N will submit the necessary data maintenance and refer the request to the appropriate data content committee
| Loop | Seg ID | Segment Name | Format | Length | Ref# | Req | Value |
| 2300 | K3 | Claim information | ID | 2 | R | K3 | |
| Element Separator | AN | 1 | * | ||||
| K301 | Fixed format Information | AN | 1/80 | 449 | R | Data in fixed format agreed upon sender and receiver | |
| Segment Terminator | ~ |
Example
CLM*100068*22526.25***11:B:1*Y*A*Y*Y~
REF*X4*4325K442~
K3*This is sample for K3 Comments. This will be printed in EDI File~
HI*BK:I70211~
For complete Example, please refer to use case 11 in the Home page