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B27.9 Non-Billable Code

Infectious mononucleosis, unspecified

Chapter Classification

Chapter 1 Certain infectious and parasitic diseases (A00-B99)

Section Detail

B25-B34 Other viral diseases (B25-B34)

Code Hierarchy

This code is a child of B27.

As a non-billable code, it requires more specific digits to be used on a medical claim.

More Specific Diagnosis Codes

This code is not billable as it requires a higher level of specificity. Select a more specific code below.

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

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