Influenza in ICD10: Difference between revisions

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**a person can be diagnosed as having influenza even if no test was sent, OR EVEN when tests sent were negative if they meet criterion "(ii)" above.

**For criteria (i) above, during flu season, "any lab test" means preliminary Cadham result or final Cadham result, or even the rapid swab done by the individual hospital labs.

===Off flu season===

*Off flu season is defined as: before there is any reported flu in the province, and after the flu season has been declared to be over.

*Off flu season, a person can ONLY be diagnosed as having influenza '''only if the FINAL CADHAM result was positive'''.

*In the absence of such a final Cadham result, clinical suspicion, treatment for flu, and positive rapid tests will be considered as NOT INFLUENZA.

=== What is a FULL COURSE of Antiviral Treatment?===

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*WHO and CDC however, recommend that in '''severe cases''' (including all cases requiring mechanical ventilation) the drug should be '''continued until the infection is resolved''' or '''there is satisfactory clinical improvement'''.

*Thus, sometimes this will be a judgement call on the part of the data collector.

~~===Off flu season===~~

*Off flu season is defined as: before there is any reported flu in the province, and after the flu season has been declared to be over.

*Off flu season, a person can ONLY be diagnosed as having influenza '''only if the FINAL CADHAM result was positive'''.

*In the absence of such a final Cadham result, clinical suspicion, treatment for flu, and positive rapid tests will be considered as NOT INFLUENZA.

===Difference between WRHA & our ICD10 Influenza definition===

@@ Line 26: / Line 26: @@
 **a person can be diagnosed as having influenza even if no test was sent, OR EVEN when tests sent were negative if they meet criterion "(ii)" above.
 **For criteria (i) above,  during flu season, "any lab test" means preliminary Cadham result or final Cadham result, or even the rapid swab done by the individual hospital labs.
+===Off flu season===
+*Off flu season is defined as:  before there is any reported flu in the province, and after the flu season has been declared to be over.
+*Off flu season, a person can ONLY be diagnosed as having influenza '''only if the FINAL CADHAM result was positive'''.
+*In the absence of such a final Cadham result, clinical suspicion, treatment for flu, and positive rapid tests will be considered as NOT INFLUENZA.
 === What is a FULL COURSE of Antiviral Treatment?===
@@ Line 31: / Line 36: @@
 *WHO and CDC however, recommend that in '''severe cases''' (including all cases requiring mechanical ventilation) the drug should be '''continued until the infection is resolved''' or '''there is satisfactory clinical improvement'''.
 *Thus, sometimes this will be a judgement call on the part of the data collector.
-===Off flu season===
-*Off flu season is defined as:  before there is any reported flu in the province, and after the flu season has been declared to be over.
-*Off flu season, a person can ONLY be diagnosed as having influenza '''only if the FINAL CADHAM result was positive'''.
-*In the absence of such a final Cadham result, clinical suspicion, treatment for flu, and positive rapid tests will be considered as NOT INFLUENZA.
 ===Difference between WRHA & our ICD10 Influenza definition===