Symptoms, signs or clinical findings, not elsewhere classified

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Clinical findings include those found using physical, laboratory and imaging techniques.

Diseases can manifest in many ways and in different body systems. Such specific manifestations may be a reason for treatment or encounter, with or without identifying or addressing the underlying condition.
Categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, could be designated 'not otherwise specified', 'unknown aetiology' or 'transient'.

The conditions and signs or symptoms included in this chapter consist of:

- cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated
- signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- provisional diagnoses in a patient who failed to return for further investigation or care;
- cases referred elsewhere for investigation or treatment before the diagnosis was made;
- cases in which a more precise diagnosis was not available for any other reason;
- certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.

These categories should be used in conjunction with a code from another chapter that identifies the underlying condition.