2c389a02__Specifications___openEHR_wiki__openEHR_equivalent
[0] 3 [Code mnemonic] OTH [Rubric] other [Description] The actual value is not an element in the constrained value domain of a variable. (e.g., concept not provided by required code system). [openEHR equivalent] 
Q: This seems to be saying that a value has been recorded in violation of the model? A: No, the converse: a value has not been recorded because the value is in violation of the model. Usual cases are : the model says it's an integer, but the correct value is not an integer, nor should it be rounded (i.e. a modeling error) The model supplied a list of enumerated values, and the actual value is not in the enumeration - maybe either a modeling error or a problem in terminologies such as snomed
Null Flavours and Boolean data in openEHR - Specifications - openEHR wiki
openEHR equivalent