Answer: B
JO9.X1 is the appropriate code because it is used to code for Influenza due to identified novel influenza A virus with pneumonia. Here, this is the diagnosis given to the patient.
Option A is incorrect because J11.0 specifies the unidentified influenza virus. Here, the type is specified.
Option C is incorrect because J13 specifies pneumonia due to streptococcus pneumoniae but here, the primary diagnosis is influenza.
Option D is incorrect because J14 specifies pneumonia due to Hemophilus Influenza. Here, the primary diagnosis is influenza. Pneumonia is secondary to influenza.
