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3. Chapter - A00-B99
4. Section - B99
5. Category - B99
6. B99.9

B99.9 - Unspecified infectious disease

• Applicable to Unspecified infectious disease
• The 2025 edition of ICD10-CM B99.9 became effective on October 1, 2024.
• This is the American ICD10-CM version of B99.9 - other international versions of ICD10 B99.9 may differ.
• B99.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above B99.9 contain annotation back-references that may be applicable to B99.9:

• Chapter: A00-B99 - Certain infectious and parasitic diseases
• Section: B99 - Other infectious diseases
• Category: B99 - Other and unspecified infectious diseases

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.