If you were addmitted to the hospital with a heart attack and also hypertension and both required monitoring during your inpatient stay. The hypertension would be considered what ?
1.the pricipal diagnosis
2. a complication
3. the principal procedure
4. a comorbidity
I think it would be answer # 1
Since this is not my area of expertise, I searched Google under the key words "comorbidity" to get these sources:
http://en.wikipedia.org/wiki/Comorbidity
http://medical-dictionary.thefreedictionary.com/comorbidity
Armed with this information, I would assume that hypertension would be the principal diagnosis, which probably precipitated the heart attack. Since they are related, they are unliked tobe classified as comorbid.
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.