B27.9 Infectious mononucleosis, unspecified

Non-billable header with 4 child codes.

Applies from B27 Infectious mononucleosis

Includes

• glandular fever
• monocytic angina
• Pfeiffer's disease

Codes under B27.9

• B27.90 Infectious mononucleosis, unspecified without complication
• B27.91 Infectious mononucleosis, unspecified with polyneuropathy
• B27.92 Infectious mononucleosis, unspecified with meningitis
• B27.99 Infectious mononucleosis, unspecified with other complication

Code annotations containing back-references to B27.9

Back-references to B27.9

• Type 1 Excludes: G63 Polyneuropathy in diseases classified elsewhere ("infectious mononucleosis complicated by polyneuropathy (B27.0-B27.9 with fifth character 1)")
• Code First: K77 Liver disorders in diseases classified elsewhere ("infectious mononucleosis with liver disease (B27.0-B27.9 with fifth character 9)")

Back-references to B27

• Type 1 Excludes: D72.821 Monocytosis (symptomatic) ("infectious mononucleosis (B27.-)")
• Type 1 Excludes: G02 Meningitis in other infectious and parasitic diseases classified elsewhere ("infectious mononucleosis complicated by meningitis (B27.- with fifth character 2)")
• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")
• Type 1 Excludes: J02.8 Acute pharyngitis due to other specified organisms ("acute pharyngitis due to infectious mononucleosis (B27.-)")

Nearby codes

• B27.8 Other infectious mononucleosis
• B27.80 Other infectious mononucleosis without complication
• B27.81 Other infectious mononucleosis with polyneuropathy
• B27.82 Other infectious mononucleosis with meningitis
• B27.89 Other infectious mononucleosis with other complication
• B27.9 Infectious mononucleosis, unspecified (this code)
• B27.90 Infectious mononucleosis, unspecified without complication
• B27.91 Infectious mononucleosis, unspecified with polyneuropathy
• B27.92 Infectious mononucleosis, unspecified with meningitis
• B27.99 Infectious mononucleosis, unspecified with other complication