Why was the diagnosis label 'activity intolerance' (00092) revised to 'decreased activity tolerance' (00298)?

The label 'activity intolerance' was revised to 'decreased activity tolerance' because it did not fit the multiaxial diagnostic structure appropriately. The judgment term 'in-' in the original label implies 'not' or 'impossible', which is not a sensible negation of 'activity tolerance' and caused translation difficulties. The definition was reexamined and the actual judgment was 'decreased', so the label was changed to improve clarity and international consistency.

The revision of activity intolerance (00092) to decreased activity tolerance (00298) was prompted by the NANDA-I review of diagnosis labels in relation to the multiaxial structure, specifically axis 1 (focus of diagnosis) and axis 3 (judgment). The original label treated 'activity tolerance' as the focus and used the judgment prefix 'in-', which in English generally means 'not' or 'impossible'. However, simply negating the human response of activity tolerance does not produce a meaningful diagnostic label. The label also proved difficult to translate into some languages because the concept of 'intolerance' as a negation did not transfer well. After carefully examining the diagnosis definition, the judgment term that actually reflected the human response was determined to be 'decreased'. Changing the label to 'decreased activity tolerance' aligned the label with the definition and with the axis structure, which facilitates more accurate translation and consistent use of the diagnosis internationally.