Wiki When to use 796.9 over 796.4 in a clinical laboratory setting?

sajarvis

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A laboratory will not assign a disease category to an abnormal lab test. The decision was made to assign a sign or symptom code. If there is no listing for a specific test, the defaulat is 796.4. Effective 10/01/2009, a new code of 796.9 was added. My question is under what circumstances would this code be used in a clinical laboratory setting?
thanks for your assistance
saj
 
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