DICOM PS3.4 2020c - Service Class Specifications

CC.2.8.4 Status Codes (Current)
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#### CC.2.8.4 Status Codes

Table CC.2.8-2 defines the status code values that might be returned in a C-FIND response. General status code values and fields related to status code values are defined for C-FIND DIMSE Service in PS3.7.

Table CC.2.8-2. C-FIND Response Status Values [for Search for Unified Procedure Step]

Service Status | Further Meaning | Status Codes | Related Fields
--- | --- | --- | ---
Failure | Refused: Out of resources | A700 | (0000,0902)
Error: Data Set does not match SOP Class | A900 | (0000,0901) (0000,0902)
Refused: SOP Class not supported | 0122 |
Failed: Unable to process | Cxxx | (0000,0901) (0000,0902)
Cancel | Matching terminated due to Cancel request | FE00 | None
Success | Matching is complete - No final Identifier is supplied. | 0000 | None
Pending | Matches are continuing - Current Match is supplied and any Optional Keys were supported in the same manner as Required Keys. | FF00 | Identifier
Matches are continuing - Warning that one or more Optional Keys were not supported for existence for this Identifier. | FF01 | Identifier

### Note

Status Codes are returned in DIMSE response messages (see PS3.7). The code values stated in column "Status Codes" are returned in Status Command Element (0000,0900).

Some Failure Status Codes are implementation specific.

An SCP implementation shall assign specific failure status codes by replacing each 'x' symbol with a hexadecimal digit in the range from 0 to F. An SCP implementation wishing to differentiate between causes of “Failed: Unable to process” Failure Meaning shall assign those causes specific Status Code Values within valid range specified in Table CC.2.8-2.

An SCU implementation shall recognize any Failure Status Code within the value range specified in Table CC.2.8-2 as an indicator of the Failure Meaning stated in the table. There is no requirement for an SCU implementation to differentiate between specific Status Codes within the valid range.

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DICOM PS3.4 2020c - Service Class Specifications