This value set includes codes based on the following rules:

• Include these codes as defined in http://hl7.org/fhir/uv/ichom-breast-cancer/CodeSystem/ComplicationImpactCodeSystem

  Code	Display
  no-complication	No complication
  prolonged-hospitalization	Complication leading to prolonged hospitalization (>14days)
  treatment-discontinuation	Complication leading to discontinuing of treatment
  no-changes	Complication, but did not result in any of the abovementioned

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  240917005	Interventional radiology
  303577009	Interventional debulking surgery
  417005	Hospital re-admission
  397945004	Unexpected admission to intensive care unit
  182879007	Medication decreased
  419620001	Death

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-NullFlavor

  Code	Display	Definition
  UNK	unknown	**Description:**A proper value is applicable, but not known. **Usage Notes**: This means the actual value is not known. If the only thing that is unknown is how to properly express the value in the necessary constraints (value set, datatype, etc.), then the OTH or UNC flavor should be used. No properties should be included for a datatype with this property unless: 1. Those properties themselves directly translate to a semantic of "unknown". (E.g. a local code sent as a translation that conveys 'unknown') 2. Those properties further qualify the nature of what is unknown. (E.g. specifying a use code of "H" and a URL prefix of "tel:" to convey that it is the home phone number that is unknown.)

This value set contains 11 concepts