Do two conditions have to be listed together in the diagnostic statement in order to assume an association?
It is not required that two conditions be listed together in the health record. However, the provider needs to document the linkage, except for situations where the classification assumes an association (e.g., sickle cell anemia with acute chest syndrome, hypertension with chronic kidney involvement, etc.). When the provider establishes a linkage or relationship between the two conditions, they should be coded as such. However, the entire record should be reviewed to determine whether a relationship between the two conditions exists. The fact that a patient has two conditions that commonly occur together does not necessarily mean they are related. A different cause may be documented by the provider. If it is not clear whether or not two conditions are related, query the provider.