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Core information standard: CORE INFORMATION STANDARD IMPLEMENTATION GUIDANCE

3.16 Problem list

This section allows for all relevant diagnoses, symptoms, conditions, problems and issues.

This would include disabilities, including learning disabilities, and conditions such as autism where they fall into the above categories i.e. are diagnosed, seen as a problem by the person or are considered a condition or similar. Behavioural factors which are not formal diagnoses but could be seen as a problem for the person would also appear under this section.

‘Onset date’ should be included where available even if this is estimated in source systems.

When a diagnosis has not yet been made, the most granular clinical concept with the highest level of certainty should be displayed. This may be a problem, symptom, sign, or test result, and may evolve over time, as a conventional diagnosis is reached. For example, ‘dyspepsia’ may be the diagnosis when a patient first presents with indigestion, upgraded to ‘gastric ulcer’ when this is found at endoscopy, and ‘gastric cancer’ when biopsies reveal this.

Unconfirmed or excluded diagnoses should not be include in structured coded fields, but may be included in free text in the comments field. Thus, in the example above, gastric ulcer and gastric cancer may be in a list of differential diagnoses at presentation, but the symptom, dyspepsia, should be included in the diagnosis field. The differential diagnoses should only be included in free text in the comments field, and not in a coded diagnosis field until confirmed with confidence.

Co-morbidities’ should be shown as separate diagnoses. For example, dementia may be recorded as a primary diagnosis by a psycho-geriatrician, but as a co- morbidity where a patient is admitted for a hip replacement. Local implementations will need to define what will be prioritised according to each use case.

In some situations a diagnosis may need to be qualified by a number of attributes to give further detail. A generic approach to these attributes (such as grade; severity; distribution; behaviour; laterality etc.) has not yet been agreed. Until this is achieved it is recommended that these features are included as free text comments.

Page last updated: 06 January 2026